def get_action(self, state, instruction):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
#TODO: Absorb corpus within model
:return:
"""
prof = SimpleProfiler(print=True)
prof.tick(".")
# TODO: Simplify this
self.eval()
images_np_pure = state.image
state_np = state.state
state = Variable(none_padded_seq_to_tensor([state_np]))
#print("Act: " + debug_untokenize_instruction(instruction))
# Add the batch dimension
first_step = True
if instruction == self.prev_instruction:
first_step = False
self.prev_instruction = instruction
if first_step:
self.get_act_start_pose = self.cam_poses_from_states(state[0:1])
self.seq_step += 1
# This is for training the policy to mimic the ground-truth state distribution with oracle actions
# b_traj_gt_w_select = b_traj_ground_truth[b_plan_mask_t[:, np.newaxis, np.newaxis, np.newaxis].expand_as(b_traj_ground_truth)].view([-1] + gtsize)
traj_gt_w = Variable(self.gt_labels)
b_poses = self.cam_poses_from_states(state)
# TODO: These source and dest should go as arguments to get_maps (in forward pass not params)
transformer = MapTransformerBase(
source_map_size=self.params["global_map_size"],
world_size_px=self.params["world_size_px"],
dest_map_size=self.params["local_map_size"],
world_size_m=self.params["world_size_m"])
self.maybe_cuda(transformer)
transformer.set_maps(traj_gt_w, None)
traj_gt_r, _ = transformer.get_maps(b_poses)
self.clear_inputs("traj_gt_r_select")
self.clear_inputs("traj_gt_w_select")
self.keep_inputs("traj_gt_r_select", traj_gt_r)
self.keep_inputs("traj_gt_w_select", traj_gt_w)
action = self(traj_gt_r, firstseg=[self.seq_step == 1])
output_action = action.squeeze().data.cpu().numpy()
stop_prob = output_action[3]
output_stop = 1 if stop_prob > self.params["stop_threshold"] else 0
output_action[3] = output_stop
return output_action
class FPVToFPVMap(CudaModule):
def __init__(self,
img_w,
img_h,
res_channels,
map_channels,
img_dbg=False):
super(FPVToFPVMap, self).__init__()
self.image_debug = img_dbg
# Provide enough padding so that the map is scaled down by powers of 2.
self.img_to_features = ImgToFeatures(res_channels, map_channels, img_w,
img_h)
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.actual_images = None
def cuda(self, device=None):
CudaModule.cuda(self, device)
self.img_to_features.cuda(device)
def init_weights(self):
self.img_to_features.init_weights()
def reset(self):
self.actual_images = None
def forward_fpv_features(self, images, sentence_embeds, parent=None):
"""
Compute the first-person image features given the first-person images
If grounding loss is enabled, will also return sentence_embedding conditioned image features
:param images: images to compute features on
:param sentence_embeds: sentence embeddings for each image
:param parent:
:return: features_fpv_vis - the visual features extracted using the ResNet
features_fpv_gnd - the grounded visual features obtained after applying a 1x1 language-conditioned conv
"""
# Extract image features. If they've been precomputed ahead of time, just grab it by the provided index
features_fpv_vis = self.img_to_features(images)
return features_fpv_vis
def forward(self, images, poses, sentence_embeds, parent=None, show=""):
self.prof.tick("out")
features_fpv_vis_only = self.forward_fpv_features(
images, sentence_embeds, parent)
return features_fpv_vis_only
def rot(image, xy_list, angle):
PROFILE = False
prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
#im_rot = rotate(image, angle)
im_rot = image.rotate(angle)#affine(image, angle=angle, translate=(0, 0), scale=1, shear=0)
prof.tick("rotation")
width0, height0 = image.size
width_rot, height_rot = im_rot.size
org_center = (np.array([height0, width0])-1)/2.
rot_center = (np.array([height_rot, width_rot])-1)/2.
org_list = [xy-org_center for xy in xy_list]
a = -np.deg2rad(angle)
new_list = [np.array([org[0]*np.cos(a) + org[1]*np.sin(a),
-org[0]*np.sin(a) + org[1]*np.cos(a)]) for org in org_list]
xy_list_new = [new+rot_center for new in new_list]
prof.print_stats()
return im_rot, xy_list_new
def __getitem__(self, index):
prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
prof.tick("out")
if type(index) == int:
image = self.images[index]
lm_pos_fpv = self.lm_pos_fpv[index]
lm_indices = self.lm_idx[index]
lm_pos_map = self.lm_pos_map[index]
prof.tick("retrieve data")
# data augmentation. If eval no data augmentation.
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(
image, lm_indices, lm_pos_fpv, self.img_h, self.img_w, self.eval, prof)
if (len(out_lm_indices) == 0) | (out_lm_indices is None):
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(
image, lm_indices, lm_pos_fpv, self.img_h, self.img_w, True, prof)
out_img = standardize_image(np.array(out_img))
out_img = torch.from_numpy(out_img)
out_lm_indices = torch.tensor(out_lm_indices)
out_lm_pos_fpv = torch.tensor(out_lm_pos_fpv)
sample = {"poses": self.poses[index],
"instructions": [], # self.instructions[index],
"images": out_img,
"env_ids": self.env_ids_decompressed[index],
"lm_pos_fpv": out_lm_pos_fpv,
"lm_indices": out_lm_indices,
"lm_pos_map": lm_pos_map}
prof.tick("dic")
prof.print_stats()
"""
elif type(index) == list:
out_images_list, out_lm_indices_list, out_lm_pos_fpv_list = [], [], []
for i in index:
image = self.images[i]
lm_pos_fpv = self.lm_pos_fpv[i]
lm_indices = self.lm_idx[i]
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(image, lm_indices, lm_pos_fpv, IMG_HEIGHT, IMG_WIDTH, self.eval, prof)
if (len(out_lm_indices) == 0) | (out_lm_indices is None):
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(image, lm_indices, lm_pos_fpv, IMG_HEIGHT, IMG_WIDTH, True, prof)
out_images_list.append(out_img)
out_lm_indices_list.append(out_lm_indices)
out_lm_pos_fpv_list.append(out_lm_pos_fpv)
sample = {"poses": [self.poses[i] for i in index],
"instructions": [], # self.instructions[index],
"lm_mentioned": [],
"images": out_images_list,
"env_ids": [self.env_ids_decompressed[i] for i in index],
"lm_pos_fpv": out_lm_pos_fpv_list,
"lm_idx": out_lm_indices_list}
"""
return sample
def coord_grid_test():
from utils.simple_profiler import SimpleProfiler
prof = SimpleProfiler()
print("Coord grid test:")
projector = PinholeCameraProjection()
prof.tick(".")
grid = projector.get_coord_grid(32, 32, True, True)
prof.tick("a")
print(grid)
print("Coord grid fastL")
prof.tick(".")
grid_fast = projector.get_coord_grid_fast(32, 32)
prof.tick("b")
print(grid_fast)
prof.print_stats()
assert (grid == grid_fast).all()
class MapBatchFillMissing(MapTransformerBase):
def __init__(self, source_map_size, world_in_map_size):
super(MapBatchFillMissing, self).__init__(source_map_size, world_in_map_size)
self.map_size = source_map_size
self.world_size = world_in_map_size
self.child_transformer = MapTransformerBase(source_map_size, world_in_map_size)
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.map_memory = MapTransformerBase(source_map_size, world_in_map_size)
self.last_observation = None
self.dbg_t = None
self.seq = 0
def init_weights(self):
pass
def reset(self):
super(MapBatchFillMissing, self).reset()
self.map_memory.reset()
self.child_transformer.reset()
self.seq = 0
self.last_observation = None
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.child_transformer.cuda(device)
self.map_memory.cuda(device)
return self
def dbg_write_extra(self, map, pose):
if DebugWriter().should_write():
map = map[0:1, 0:3]
self.seq += 1
# Initialize a transformer module
if pose is not None:
if self.dbg_t is None:
self.dbg_t = MapTransformerBase(self.map_size, self.world_size)
if self.is_cuda:
self.dbg_t.cuda(self.cuda_device)
# Transform the prediction to the global frame and write out to disk.
self.dbg_t.set_map(map, pose)
map_global, _ = self.dbg_t.get_map(None)
else:
map_global = map
DebugWriter().write_img(map_global[0], "gif_overlaid", args={"world_size": self.world_size, "name": "identity_integrator"})
def forward(self, select_images, all_cam_poses, plan_mask=None, show=False):
#show="li"
self.prof.tick(".")
# During rollout, plan_mask will alternate between [True] and [False]
if plan_mask is None:
all_images = select_images
return all_images, all_cam_poses
full_batch_size = len(all_cam_poses)
all_maps_out_r = []
self.prof.tick("maps_to_global")
# For each timestep, take the latest map that was available, transformed into this timestep
# Do only a maximum of one transformation for any map to avoid cascading of errors!
ptr = 0
for i in range(full_batch_size):
this_pose = all_cam_poses[i:i+1]
if plan_mask[i]:
this_obs = (select_images[ptr:ptr+1], this_pose)
ptr += 1
self.last_observation = this_obs
else:
assert self.last_observation is not None, "The first observation in a sequence needs to be used!"
last_map, last_pose = self.last_observation
# TODO: See if we can speed this up. Perhaps batch for all timesteps inbetween observations
self.child_transformer.set_map(last_map, last_pose)
this_obs = self.child_transformer.get_map(this_pose)
all_maps_out_r.append(this_obs[0])
if show != "":
Presenter().show_image(this_obs.data[0, 0:3], show, torch=True, scale=8, waitkey=50)
self.prof.tick("integrate")
# Step 3: Convert all maps to local frame
all_maps_r = torch.cat(all_maps_out_r, dim=0)
# Write gifs for debugging
#self.dbg_write_extra(all_maps_r, None)
self.set_maps(all_maps_r, all_cam_poses)
self.prof.tick("maps_to_local")
self.prof.loop()
self.prof.print_stats(10)
return all_maps_r, all_cam_poses
class SegmentDataset(Dataset):
def __init__(self,
data=None,
env_list=None,
dataset_names=["simulator"],
dataset_prefix="supervised",
domain="sim",
max_traj_length=None,
aux_provider_names=[],
segment_level=False,
cache=False):
"""
Dataset for the replay memory
:param data: if data is pre-loaded in memory, this is the training data
:param env_list: if data is to be loaded by the dataset, this is the list of environments for which to include data
:param dataset_names: list of datasets from which to load data
:param dataset_prefix: name of the dataset. Default: supervised will use data collected with collect_supervised_data
:param max_traj_length: truncate trajectories to this long
:param cuda:
:param aux_provider_names:
"""
# If data is already loaded in memory, use it
self.data = data
self.prof = SimpleProfiler(torch_sync=False, print=PROFILE)
self.min_seg_len = P.get_current_parameters()["Data"].get("min_seg_len", 3)
self.do_cache = P.get_current_parameters()["Data"].get("cache", False)
self.dataset_prefix = dataset_prefix
self.dataset_names = dataset_names
self.domain = domain
self.env_restrictions = P.get_current_parameters()["Data"].get("dataset_env_restrictions")
if self.env_restrictions:
self.dataset_restricted_envs = {dname:P.get_current_parameters()["Data"]["EnvRestrictionGroups"][self.env_restrictions[dname]] for dname in dataset_names if dname in self.env_restrictions}
print(f"Using restricted envs: {list(self.dataset_restricted_envs.keys())}")
else:
self.dataset_restricted_envs = {}
self.max_traj_length = max_traj_length
train_instr, dev_instr, test_instr, corpus = get_all_instructions()
# TODO: This shouldn't have access to all instructions. We should really make distinct train, dev, test modes
self.all_instr = {**train_instr, **dev_instr, **test_instr}
train_instr_full, dev_instr_full, test_instr_full, corpus = get_all_instructions(full=True)
self.all_instr_full = {**train_instr_full, **dev_instr_full, **test_instr_full}
self.segment_level = segment_level
self.sample_ids = []
if self.data is None:
assert env_list is not None
for i, dataset_name in enumerate(self.dataset_names):
dataset_env_list = filter_env_list_has_data(dataset_name, env_list, dataset_prefix)
if self.segment_level:
dataset_env_list, dataset_seg_list = self.split_into_segments(dataset_env_list, dataset_name)
else:
dataset_seg_list = [0 for _ in dataset_env_list]
for env, seg in zip(dataset_env_list, dataset_seg_list):
self.sample_ids.append((dataset_name, env, seg))
self.token2word, self.word2token = get_word_to_token_map(corpus)
self.aux_provider_names = aux_provider_names
self.aux_label_names = get_aux_label_names(aux_provider_names)
self.stackable_names = get_stackable_label_names(aux_provider_names)
self.data_cache = {dataset_name:{} for dataset_name in dataset_names}
self.traj_len = P.get_current_parameters()["Setup"]["trajectory_length"]
def load_env_data(self, dataset_name, env_id):
if self.do_cache:
if env_id not in self.data_cache[dataset_name]:
self.data_cache[dataset_name][env_id] = load_single_env_from_dataset(dataset_name, env_id, self.dataset_prefix)
return self.data_cache[dataset_name][env_id]
else:
return load_single_env_from_dataset(dataset_name, env_id, self.dataset_prefix)
def __len__(self):
if self.data is not None:
return len(self.data)
else:
return len(self.sample_ids)
def __getitem__(self, idx):
self.prof.tick("out")
# If data is already loaded, use it
if self.data is not None:
seg_data = self.data[idx]
raise NotImplementedError("Not implemented and tested")
if type(seg_data) is int:
raise NotImplementedError("Mixing dynamically loaded envs with training data is no longer supported.")
else:
dataset_name, env_id, seg_idx = self.sample_ids[idx]
env_data = self.load_env_data(dataset_name, env_id)
if self.segment_level:
seg_data = []
segs_in_data = set()
for sample in env_data:
# This is a hack around the dataset format change - some stuff used to be inside the metadata dict,
# but is now moved into the root level
if "metadata" not in sample:
sample["metadata"] = sample
# TODO: Set this at rollout time - we know which domain we're rolling out, but this can potentially be mixed up
sample["metadata"]["domain"] = self.domain
segs_in_data.add(sample["metadata"]["seg_idx"])
# Keep the segments for which we have instructions
segs_in_data_and_instructions = set()
for _seg_idx in segs_in_data:
if get_instruction_segment(env_id, 0, _seg_idx, all_instr=self.all_instr_full) is not None:
segs_in_data_and_instructions.add(_seg_idx)
if seg_idx not in segs_in_data_and_instructions:
if DEBUG: print(f"Segment {env_id}::{seg_idx} not in (data)and(instructions)")
# If there's a single segment in this entire dataset, just return that segment even if it's not a match.
if len(segs_in_data) == 1:
seg_data = env_data
if DEBUG: print(f" Only one seg in data ({segs_in_data}): returning that")
# Otherwise return a random segment instead
elif len(segs_in_data_and_instructions) > 0:
seg_idx = random.choice(list(segs_in_data_and_instructions))
if DEBUG: print(f" Returning a random segment from (data)and(instructions): {seg_idx}")
elif dataset_name == "real" and len(segs_in_data) > 0:
seg_idx = random.choice(list(segs_in_data))
if DEBUG: print(f" REAL dataset. Returning a random seg from data: {seg_idx}")
else:
seg_idx = -1
if DEBUG: print(f" No segment found. Skipping example")
if len(seg_data) == 0:
if DEBUG: print(f" Grabing segment: {seg_idx}")
for sample in env_data:
if sample["metadata"]["seg_idx"] == seg_idx:
seg_data.append(sample)
if DEBUG: print(f" Returning segment data of length: {len(seg_data)}")
else:
seg_data = env_data
# I get a lot of Nones here in RL training because the dataset index is created based on different data than available!
# TODO: in RL training, treat entire environment as a single segment and don't distinguish.
# How? Check above
if len(seg_data) < self.min_seg_len:
print(f" None reason: len:{len(seg_data)} in {dataset_name}, env:{env_id}, seg:{seg_idx}")
return None
if len(seg_data) > self.traj_len:
seg_data = seg_data[:self.traj_len]
seg_idx = seg_data[0]["metadata"]["seg_idx"]
set_idx = seg_data[0]["metadata"]["set_idx"]
env_id = seg_data[0]["metadata"]["env_id"]
instr = get_instruction_segment(env_id, set_idx, seg_idx, all_instr=self.all_instr)
if instr is None and dataset_name != "real":
#print(f"{dataset_name} Seg {env_id}:{set_idx}:{seg_idx} not present in instruction data")
return None
instr = get_instruction_segment(env_id, set_idx, seg_idx, all_instr=self.all_instr_full)
if instr is None:
print(f"{dataset_name} Seg {env_id}:{set_idx}:{seg_idx} not present in FULL instruction data. WTF?")
return None
# Convert to tensors, replacing Nones with zero's
images_in = [seg_data[i]["state"].image if i < len(seg_data) else None for i in range(len(seg_data))]
states = [seg_data[i]["state"].state if i < len(seg_data) else None for i in range(len(seg_data))]
images_np = standardize_images(images_in)
images = none_padded_seq_to_tensor(images_np)
#depth_images_np = standardize_depth_images(images_in)
#depth_images = none_padded_seq_to_tensor(depth_images_np)
states = none_padded_seq_to_tensor(states)
actions = [s["ref_action"] for s in seg_data]
actions = none_padded_seq_to_tensor(actions)
stops = [1.0 if s["done"] else 0.0 for s in seg_data]
# e.g. [1 1 1 1 1 1 0 0 0 0 .. 0] for segment with 6 samples
mask = [1.0 if s["ref_action"] is not None else 0.0 for s in seg_data]
stops = torch.FloatTensor(stops)
mask = torch.FloatTensor(mask)
# This is a list, converted to tensor in collate_fn
#if INSTRUCTIONS_FROM_FILE:
# tok_instructions = [tokenize_instruction(load_instruction(md["env_id"], md["set_idx"], md["seg_idx"]), self.word2token) if s["md"] is not None else None for s in seg_data]
#else:
tok_instructions = [tokenize_instruction(s["instruction"], self.word2token) if s["instruction"] is not None else None for s in seg_data]
md = [seg_data[i]["metadata"] for i in range(len(seg_data))]
flag = md[0]["flag"] if "flag" in md[0] else None
data = {
"instr": tok_instructions,
"images": images,
#"depth_images": depth_images,
"states": states,
"actions": actions,
"stops": stops,
"masks": mask,
"flags": flag,
"md": md
}
self.prof.tick("getitem_core")
for aux_provider_name in self.aux_provider_names:
aux_datas = resolve_data_provider(aux_provider_name)(seg_data, data)
for d in aux_datas:
data[d[0]] = d[1]
self.prof.tick("getitem_" + aux_provider_name)
return data
def split_into_segments(self, env_list, dname):
envs = []
segs = []
sk = 0
skipenv = 0
for env_id in env_list:
# If we only allow certain envs from a dataset, and this env is not allowed, skip it
# (Intended use is to train Stage1 with limited real-world data and compare)
if dname in self.dataset_restricted_envs:
if env_id not in self.dataset_restricted_envs[dname]:
skipenv += 1
continue
# 0th instr set
instruction_set = self.all_instr[env_id][0]["instructions"]
for seg in instruction_set:
seg_idx = seg["seg_idx"]
if DEBUG: print(f"For env {env_id} including segment: {seg_idx}")
envs.append(env_id)
segs.append(seg_idx)
print(f"Skipped {sk} segments due to merge_len constraints from dataset: {dname}")
print(f"Skipped {skipenv} environments due to restriction on dataset: {dname}")
print(f" kept {len(segs)} segments")
#envs, segs = self.filter_segment_availability(dname, envs, segs)
return envs, segs
def filter_segment_availability(self, dname, envs, segs):
data_env = None
envs_out, segs_out = [], []
# TODO: When saving envs, also save metadata for which segments are present
for env_id, seg_id in zip(envs, segs):
md = load_single_env_metadata_from_dataset(dname, env_id, self.dataset_prefix)
if md is None or seg_id in md["seg_ids"]:
envs_out.append(env_id)
segs_out.append(seg_id)
else:
print(f"Env {env_id} doesn't have seg {seg_id}")
return envs_out, segs_out
def set_word2token(self, token2term, word2token):
self.token2term = token2term
self.word2token = word2token
def stack_tensors(self, one):
if one is None:
return None
one = torch.stack(one, dim=0)
one = Variable(one)
return one
def collate_fn(self, list_of_samples):
self.prof.tick("out")
if None in list_of_samples:
return None
data_batch = dict_zip(list_of_samples)
data_t = dict_map(data_batch, self.stack_tensors,
["images", "states", "actions", "stops", "masks"] + self.stackable_names)
instructions_t, instruction_lengths = instruction_sequence_batch_to_tensor(data_batch["instr"])
data_t["instr"] = instructions_t
data_t["instr_len"] = instruction_lengths
data_t["cam_pos"] = data_t["states"][:, 9:12].clone()
data_t["cam_rot"] = data_t["states"][:, 12:16].clone()
self.prof.tick("collate")
self.prof.loop()
self.prof.print_stats(5)
return data_t
def train_epoch(self, train_data=None, train_envs=None, eval=False):
if eval:
self.model.eval()
inference_type = "eval"
epoch_num = self.train_epoch_num
self.test_epoch_num += 1
else:
self.model.train()
inference_type = "train"
epoch_num = self.train_epoch_num
self.train_epoch_num += 1
dataset = self.model.get_dataset(data=train_data,
envs=train_envs,
dataset_name="supervised",
eval=eval)
# TODO: Get rid of this:
if hasattr(dataset, "set_word2token"):
dataset.set_word2token(self.token2word, self.word2token)
dataloader = DataLoader(dataset,
collate_fn=dataset.collate_fn,
batch_size=self.batch_size,
shuffle=True,
num_workers=self.num_loaders,
pin_memory=False,
timeout=0,
drop_last=False)
num_samples = len(dataset)
if num_samples == 0:
print("DATASET HAS NO DATA!")
return -1.0
num_batches = int(
(num_samples + self.batch_size - 1) / self.batch_size)
epoch_loss = 0
count = 0
prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
prof.tick("out")
#try:
for batch in dataloader:
if batch is None:
#print("None batch!")
continue
prof.tick("batch_load")
# Zero gradients before each segment and initialize zero segment loss
self.optim.zero_grad()
#try:
if True:
batch_loss = self.model.sup_loss_on_batch(batch, eval)
if type(batch_loss) == int:
print("Ding")
prof.tick("forward")
# Backprop and step
if not eval:
batch_loss.backward()
prof.tick("backward")
# This is SLOW! Don't do it often
# TODO: Get rid of tensorboard
#if self.batch_num % 20 == 0 and hasattr(self.model, "writer"):
# params = self.model.named_parameters()
# self.write_grad_summaries(self.model.writer, params, self.batch_num)
self.batch_num += 1
self.optim.step()
prof.tick("optim")
# Get losses as floats
epoch_loss += batch_loss.data[0]
count += 1
sys.stdout.write("\r Batch:" + str(count) + " / " +
str(num_batches) + " loss: " +
str(batch_loss.data[0]))
sys.stdout.flush()
self.train_segment += 0 if eval else 1
self.test_segment += 1 if eval else 0
prof.tick("rep")
prof.loop()
prof.print_stats(10)
#except Exception as e:
# print("Exception encountered during batch update")
# print(e)
#except Exception as e:
# print("Error during epoch training")
# print(e)
# return
if hasattr(self.model, "write_eoe_summaries"):
self.model.write_eoe_summaries(inference_type, epoch_num)
print("")
epoch_loss /= (count + 1e-15)
if hasattr(self.model, "writer"):
self.model.writer.add_scalar(
self.name + "/" + inference_type + "_epoch_loss", epoch_loss,
epoch_num)
return epoch_loss
class DrawStartPosOnGlobalMap(MapTransformerBase):
def __init__(self, source_map_size, world_size_px, world_size_m, lamda=0.2):
super(DrawStartPosOnGlobalMap, self).__init__(source_map_size, world_size_px, world_size_m)
self.map_size = source_map_size
self.world_size_px = world_size_px
self.world_size_m = world_size_m
self.child_transformer = MapTransformerBase(source_map_size, world_size_px, world_size_m)
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.start_pose = None
self.last_emb = None
self.dbg_t = None
self.seq = 0
def init_weights(self):
pass
def reset(self):
super(DrawStartPosOnGlobalMap, self).reset()
self.start_pose = None
self.last_emb = None
self.child_transformer.reset()
self.seq = 0
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.child_transformer.cuda(device)
return self
def get_start_poses(self, cam_poses_w, sentence_embeddings):
# For each timestep, get the pose corresponding to the start of the instruction segment
seq_len = len(sentence_embeddings)
start_poses = []
for i in range(seq_len):
if self.last_emb is not None and (sentence_embeddings[i].data == self.last_emb).all():
pass # Keep the same start pose since we're on the same segment
else:
self.last_emb = sentence_embeddings[i].data
self.start_pose = cam_poses_w[i]
start_poses.append(self.start_pose)
return start_poses
def forward(self, maps_w, sentence_embeddings, map_poses_w, cam_poses_w, show=False):
#show="li
self.prof.tick(".")
batch_size = len(maps_w)
# Initialize the layers of the same size as the maps, but with only one channel
new_layer_size = list(maps_w.size())
new_layer_size[1] = 1
all_maps_out_w = empty_float_tensor(new_layer_size, self.is_cuda, self.cuda_device)
start_poses = self.get_start_poses(cam_poses_w, sentence_embeddings)
poses_img = [poses_m_to_px(as_pose, self.map_size, self.world_size_px, self.world_size_m) for as_pose in start_poses]
#poses_img = poses_as_to_img(start_poses, self.world_size, batch_dim=True)
for i in range(batch_size):
x = min(max(int(poses_img[i].position.data[0]), 0), new_layer_size[2] - 1)
y = min(max(int(poses_img[i].position.data[1]), 0), new_layer_size[2] - 1)
all_maps_out_w[i, 0, x, y] = 10.0
if show != "":
Presenter().show_image(all_maps_out_w[0], show, torch=True, waitkey=1)
self.prof.tick("draw")
# Step 3: Convert all maps to local frame
maps_out = torch.cat([Variable(all_maps_out_w), maps_w], dim=1)
#all_maps_w = torch.cat(all_maps_out_w, dim=0)
self.prof.loop()
self.prof.print_stats(10)
return maps_out, map_poses_w
def get_top_down_ground_truth_dynamic_global(env_id, start_idx, end_idx,
drone_pos_as, img_w, img_h, map_w,
map_h):
"""
Returns the ground-truth label oriented in the global map frame
:param env_id:
:param start_idx:
:param img_w:
:param img_h:
:param map_w:
:param map_h:
:return:
"""
PROFILE = False
prof = SimpleProfiler(False, PROFILE)
path = load_path(env_id, anno=True)
#print(len(path), start_idx, end_idx)
path = path[start_idx:end_idx]
#instruction_segments = [self.all_instr[env_id][set_idx]["instructions"][seg_idx]]
prof.tick("load_path")
units = UnrealUnits(1.0)
drone_pos_cf = units.pos3d_from_as(drone_pos_as)
#print("Dynamic ground truth for ", env_id, start_idx, end_idx)
gt_dynamic = get_dynamic_ground_truth_v2(path, drone_pos_cf[:2])
#Presenter().plot_path(env_id, [path[start_idx:end_idx], gt_dynamic])
prof.tick("gen_gt_path")
seg_labels = np.zeros([img_w, img_h, 2]).astype(float)
path_in_img = cf_to_img(gt_dynamic, np.array([map_w, map_h]))
gauss_sigma = map_w / 96
seg_labels[:, :, 0] = tdd.plot_path_on_img(seg_labels[:, :, 0],
path_in_img)
if len(path_in_img) > 1:
seg_labels[:, :, 1] = tdd.plot_dot_on_img(seg_labels[:, :, 1],
path_in_img[-1], gauss_sigma)
prof.tick("plot_path")
seg_labels[:, :, 0] = gaussian_filter(seg_labels[:, :, 0], gauss_sigma)
seg_labels[:, :, 1] = gaussian_filter(seg_labels[:, :, 1], gauss_sigma)
# Standardize both channels separately (each has mean zero, unit variance)
seg_labels_path = standardize_2d_prob_dist(seg_labels[:, :, 0:1])
seg_labels_endpt = standardize_2d_prob_dist(seg_labels[:, :, 1:2])
prof.tick("process_img")
DEBUG = False
if DEBUG:
gt_path_in_img = cf_to_img(path, np.asarray([map_w, map_h]))
dbg_labels_gt = np.zeros([img_w, img_h, 1])
dbg_labels_gt[:, :, 0] = tdd.plot_path_on_img(dbg_labels_gt[:, :, 0],
gt_path_in_img)
Presenter().show_image(dbg_labels_gt,
"dbg",
torch=False,
waitkey=10,
scale=4)
Presenter().show_image(torch.from_numpy(seg_labels_path),
"l_path",
torch=True,
waitkey=10,
scale=4)
Presenter().show_image(torch.from_numpy(seg_labels_endpt),
"l_endp",
torch=True,
waitkey=100,
scale=4)
seg_labels = np.concatenate((seg_labels_path, seg_labels_endpt), axis=0)
seg_labels_t = torch.from_numpy(seg_labels).unsqueeze(0).float()
prof.tick("prep_out")
prof.print_stats()
return seg_labels_t
class FPVToEgoMap(MapTransformerBase):
def __init__(self,
source_map_size, world_size_px,
world_size, img_w, img_h,
embed_size, map_channels, gnd_channels, res_channels=32,
lang_filter=False, img_dbg=False):
super(FPVToEgoMap, self).__init__(source_map_size, world_size_px)
self.image_debug = img_dbg
self.use_lang_filter = lang_filter
# Process images using a resnet to get a feature map
if self.image_debug:
self.img_to_features = nn.MaxPool2d(8)
else:
# Provide enough padding so that the map is scaled down by powers of 2.
self.img_to_features = ImgToFeatures(res_channels, map_channels)
if self.use_lang_filter:
self.lang_filter = MapLangSemanticFilter(embed_size, map_channels, gnd_channels)
# Project feature maps to the global frame
self.map_projection = PinholeCameraProjectionModule(
source_map_size, world_size_px, world_size, source_map_size / 2, img_w, img_h)
self.grid_sampler = GridSampler()
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.actual_images = None
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.map_projection.cuda(device)
self.grid_sampler.cuda(device)
self.img_to_features.cuda(device)
if self.use_lang_filter:
self.lang_filter.cuda(device)
def init_weights(self):
if not self.image_debug:
self.img_to_features.init_weights()
def reset(self):
self.actual_images = None
super(FPVToEgoMap, self).reset()
def forward_fpv_features(self, images, sentence_embeds, parent=None):
"""
Compute the first-person image features given the first-person images
If grounding loss is enabled, will also return sentence_embedding conditioned image features
:param images: images to compute features on
:param sentence_embeds: sentence embeddings for each image
:param parent:
:return: features_fpv_vis - the visual features extracted using the ResNet
features_fpv_gnd - the grounded visual features obtained after applying a 1x1 language-conditioned conv
"""
# Extract image features. If they've been precomputed ahead of time, just grab it by the provided index
features_fpv_vis = self.img_to_features(images)
if parent is not None:
parent.keep_inputs("fpv_features", features_fpv_vis)
self.prof.tick("feat")
# If required, pre-process image features by grounding them in language
if self.use_lang_filter:
self.lang_filter.precompute_conv_weights(sentence_embeds)
features_gnd = self.lang_filter(features_fpv_vis)
if parent is not None:
parent.keep_inputs("fpv_features_g", features_gnd)
self.prof.tick("gnd")
return features_fpv_vis, features_gnd
return features_fpv_vis, None
def forward(self, images, poses, sentence_embeds, parent=None, show=""):
self.prof.tick("out")
features_fpv_vis_only, features_fpv_gnd_only = self.forward_fpv_features(images, sentence_embeds, parent)
# If we have grounding features, the overall features are a concatenation of grounded and non-grounded features
if features_fpv_gnd_only is not None:
features_fpv_all = torch.cat([features_fpv_gnd_only, features_fpv_vis_only], dim=1)
else:
features_fpv_all = features_fpv_vis_only
# Project first-person view features on to the map in egocentric frame
grid_maps = self.map_projection(poses)
self.prof.tick("proj_map")
features_r = self.grid_sampler(features_fpv_all, grid_maps)
# Obtain an ego-centric map mask of where we have new information
ones_size = list(features_fpv_all.size())
ones_size[1] = 1
tmp_ones = empty_float_tensor(ones_size, self.is_cuda, self.cuda_device).fill_(1.0)
new_coverages = self.grid_sampler(tmp_ones, grid_maps)
# Make sure that new_coverage is a 0/1 mask (grid_sampler applies bilinear interpolation)
new_coverages = new_coverages - torch.min(new_coverages)
new_coverages = new_coverages / torch.max(new_coverages)
self.prof.tick("gsample")
if show != "":
Presenter().show_image(images.data[0, 0:3], show + "_img", torch=True, scale=1, waitkey=1)
Presenter().show_image(features_r.data[0, 0:3], show, torch=True, scale=6, waitkey=1)
Presenter().show_image(new_coverages.data[0], show + "_covg", torch=True, scale=6, waitkey=1)
self.prof.loop()
self.prof.print_stats(10)
return features_r, new_coverages
def train_epoch(self,
env_list_common=None,
env_list_sim=None,
data_list_real=None,
data_list_sim=None,
eval=False):
if eval:
self.model_real.eval()
self.model_sim.eval()
self.model_critic.eval()
inference_type = "eval"
epoch_num = self.train_epoch_num
self.test_epoch_num += 1
else:
self.model_real.train()
self.model_sim.train()
self.model_critic.train()
inference_type = "train"
epoch_num = self.train_epoch_num
self.train_epoch_num += 1
dataset_real_common = self.model_real.get_dataset(
data=data_list_real,
envs=env_list_common,
domain="real",
dataset_names=self.real_dataset_names,
dataset_prefix="supervised",
eval=eval)
dataset_sim_common = self.model_real.get_dataset(
data=data_list_real,
envs=env_list_common,
domain="sim",
dataset_names=self.sim_dataset_names,
dataset_prefix="supervised",
eval=eval)
dataset_real_halfway = self.model_real.get_dataset(
data=data_list_real,
envs=env_list_common,
domain="real",
dataset_names=self.real_dataset_names,
dataset_prefix="supervised",
eval=eval,
halfway_only=True)
dataset_sim_halfway = self.model_real.get_dataset(
data=data_list_real,
envs=env_list_common,
domain="sim",
dataset_names=self.sim_dataset_names,
dataset_prefix="supervised",
eval=eval,
halfway_only=True)
dataset_sim = self.model_sim.get_dataset(
data=data_list_sim,
envs=env_list_sim,
domain="sim",
dataset_names=self.sim_dataset_names,
dataset_prefix="supervised",
eval=eval)
print("Beginning supervised epoch:")
print(" Sim dataset names: ", self.sim_dataset_names)
print(" Dataset sizes: ")
print(" dataset_real_common ", len(dataset_real_common))
print(" dataset_sim_common ", len(dataset_sim_common))
print(" dataset_real_halfway ", len(dataset_real_halfway))
print(" dataset_sim_halfway ", len(dataset_sim_halfway))
print(" dataset_sim ", len(dataset_sim))
print(" env_list_sim_len ", len(env_list_sim))
print(" env_list_common_len ", len(env_list_common))
if len(dataset_sim) == 0 or len(dataset_sim_common) == 0:
print("Missing data! Waiting for RL to generate it?")
return 0
dual_model_loader = DualDataloader(
dataset_a=dataset_real_common,
dataset_b=dataset_sim_common,
batch_size=self.batch_size,
shuffle=True,
num_workers=self.model_common_loaders,
pin_memory=False,
timeout=0,
drop_last=False,
joint_length="max")
sim_loader = DataLoader(dataset=dataset_sim,
collate_fn=dataset_sim.collate_fn,
batch_size=self.batch_size,
shuffle=True,
num_workers=self.model_sim_loaders,
pin_memory=False,
timeout=0,
drop_last=False)
sim_iterator = iter(sim_loader)
dual_critic_loader = DualDataloader(dataset_a=dataset_real_halfway,
dataset_b=dataset_sim_halfway,
batch_size=self.batch_size,
shuffle=True,
num_workers=self.critic_loaders,
pin_memory=False,
timeout=0,
drop_last=False,
joint_length="infinite")
dual_critic_iterator = iter(dual_critic_loader)
wloss_before_updates_writer = LoggingSummaryWriter(
log_dir=
f"{get_logging_dir()}/runs/{self.run_name}/discriminator_before_updates"
)
wloss_after_updates_writer = LoggingSummaryWriter(
log_dir=
f"{get_logging_dir()}/runs/{self.run_name}/discriminator_after_updates"
)
samples_real = len(dataset_real_common)
samples_common = len(dataset_sim_common)
samples_sim = len(dataset_sim)
if samples_real == 0 or samples_sim == 0 or samples_common == 0:
print(
f"DATASET HAS NO DATA: REAL: {samples_real > 0}, SIM: {samples_sim > 0}, COMMON: {samples_common}"
)
return -1.0
num_batches = len(dual_model_loader)
epoch_loss = 0
count = 0
critic_elapsed_iterations = 0
prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
prof.tick("out")
# Alternate training critic and model
for real_batch, sim_batch in dual_model_loader:
if real_batch is None or sim_batch is None:
print("none")
continue
prof.tick("load_model_data")
# Train the model for model_steps in a row, then train the critic, and repeat
critic_batch_num = 0
if count % self.model_steps == 0 and not eval and not self.disable_wloss:
#print("\nTraining critic\n")
# Train the critic for self.critic_steps steps
for cstep in range(self.critic_steps):
# Each batch is actually a single rollout (we batch the rollout data across the sequence)
# To collect a batch of rollouts, we need to keep iterating
real_store = KeyTensorStore()
sim_store = KeyTensorStore()
for b in range(self.critic_batch_size):
# Get the next non-None batch
real_c_batch, sim_c_batch = None, None
while real_c_batch is None or sim_c_batch is None:
real_c_batch, sim_c_batch = next(
dual_critic_iterator)
prof.tick("critic_load_data")
# When training the critic, we don't backprop into the model, so we don't need gradients here
with torch.no_grad():
real_loss, real_store_b = self.model_real.sup_loss_on_batch(
real_c_batch, eval=eval, halfway=True)
sim_loss, sim_store_b = self.model_sim.sup_loss_on_batch(
sim_c_batch, eval=eval, halfway=True)
prof.tick("critic_features")
real_store.append(real_store_b)
sim_store.append(sim_store_b)
prof.tick("critic_store_append")
# Forward the critic
# The real_store and sim_store should really be a batch of multiple rollouts
wdist_loss_a, critic_store = self.model_critic.calc_domain_loss(
real_store, sim_store)
prof.tick("critic_domain_loss")
# Store the first and last critic loss
if cstep == 0:
wdist_loss_before_updates = wdist_loss_a.detach().cpu()
if cstep == self.critic_steps - 1:
wdist_loss_after_updates = wdist_loss_a.detach().cpu()
if self.model_oracle_critic:
wdist_loss_oracle, oracle_store = self.model_oracle_critic.calc_domain_loss(
real_store, sim_store)
wdist_loss_a += wdist_loss_oracle
# Update the critic
critic_batch_num += 1
self.optim_critic.zero_grad()
# Wasserstein distance is maximum distance transport cost under Lipschitz constraint, so we maximize it
(-wdist_loss_a).backward()
self.optim_critic.step()
#sys.stdout.write(f"\r Critic batch: {critic_batch_num}/{critic_steps} d_loss: {wdist_loss_a.data.item()}")
#sys.stdout.flush()
prof.tick("critic_backward")
# Write wasserstein loss before and after wasertein loss updates
prefix = "pvn_critic" + ("/eval" if eval else "/train")
wloss_before_updates_writer.add_scalar(
f"{prefix}/w_score_before_updates",
wdist_loss_before_updates.item(),
self.model_critic.get_iter())
wloss_after_updates_writer.add_scalar(
f"{prefix}/w_score_before_updates",
wdist_loss_after_updates.item(),
self.model_critic.get_iter())
critic_elapsed_iterations += 1
# Clean up GPU memory
del wdist_loss_a
del critic_store
del real_store
del sim_store
del real_store_b
del sim_store_b
prof.tick("del")
# Forward the model on the bi-domain data
disable_losses = [
"visitation_dist"
] if self.params.get("disable_real_loss") else []
real_loss, real_store = self.model_real.sup_loss_on_batch(
real_batch,
eval,
halfway=False,
grad_noise=False,
disable_losses=disable_losses)
sim_loss, sim_store = self.model_sim.sup_loss_on_batch(
sim_batch, eval, halfway=False)
prof.tick("model_forward")
# Forward the model K times on simulation only data
for b in range(self.sim_steps_per_common_step):
# Get the next non-None batch
sim_batch = None
while sim_batch is None:
try:
sim_batch = next(sim_iterator)
except StopIteration as e:
sim_iterator = iter(sim_loader)
print("retry")
continue
prof.tick("load_model_data")
sim_loss_b, _ = self.model_sim.sup_loss_on_batch(sim_batch,
eval,
halfway=False)
sim_loss = (sim_loss + sim_loss_b) if sim_loss else sim_loss_b
#print(f" Model forward common sim, loss: {sim_loss_b.detach().cpu().item()}")
prof.tick("model_forward")
prof.tick("model_forward")
# TODO: Reconsider this
sim_loss = sim_loss / max(self.model_batch_size,
self.sim_steps_per_common_step)
real_loss = real_loss / max(self.model_batch_size,
self.sim_steps_per_common_step)
total_loss = real_loss + sim_loss
if not self.disable_wloss:
# Forward the critic
wdist_loss_b, critic_store = self.model_critic.calc_domain_loss(
real_store, sim_store)
# Increase the iteration on the oracle without running it so that the Tensorboard plots align
if self.model_oracle_critic:
self.model_oracle_critic.iter += 1
prof.tick("model_domain_loss")
# Minimize average real/sim losses, maximize domain loss
total_loss = total_loss + wdist_loss_b
# Grad step
if not eval and total_loss.requires_grad:
self.optim_models.zero_grad()
total_loss.backward()
self.optim_models.step()
prof.tick("model_backward")
print(
f"Batch: {count}/{num_batches} r_loss: {real_loss.data.item() if real_loss else None} s_loss: {sim_loss.data.item()}"
)
# Get losses as floats
epoch_loss += total_loss.data.item()
count += 1
self.train_segment += 0 if eval else 1
self.test_segment += 1 if eval else 0
prof.loop()
prof.print_stats(self.model_steps)
if self.iterations_per_epoch and count > self.iterations_per_epoch:
break
print("")
epoch_loss /= (count + 1e-15)
return epoch_loss
class IdentityIntegratorMap(MapTransformerBase):
def __init__(self, source_map_size, world_size_px, world_size_m):
super(IdentityIntegratorMap, self).__init__(source_map_size, world_size_px, world_size_m)
self.map_size = source_map_size
self.world_size = world_size_px
self.world_size_m = world_size_m
self.child_transformer = MapTransformerBase(source_map_size, world_size_px, world_size_m)
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.map_memory = MapTransformerBase(source_map_size, world_size_px, world_size_m)
self.last_observation = None
self.dbg_t = None
self.seq = 0
def init_weights(self):
pass
def reset(self):
super(IdentityIntegratorMap, self).reset()
self.map_memory.reset()
self.child_transformer.reset()
self.seq = 0
self.last_observation = None
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.child_transformer.cuda(device)
self.map_memory.cuda(device)
return self
def dbg_write_extra(self, map, pose):
if DebugWriter().should_write():
map = map[0:1, 0:3]
self.seq += 1
# Initialize a transformer module
if pose is not None:
if self.dbg_t is None:
self.dbg_t = MapTransformerBase(self.map_size, self.world_size, self.world_size_m).to(map.device)
# Transform the prediction to the global frame and write out to disk.
self.dbg_t.set_map(map, pose)
map_global, _ = self.dbg_t.get_map(None)
else:
map_global = map
DebugWriter().write_img(map_global[0], "gif_overlaid", args={"world_size": self.world_size, "name": "identity_integrator"})
def forward(self, images, cam_poses, add_mask=None, show=False):
#show="li"
self.prof.tick(".")
batch_size = len(cam_poses)
assert add_mask is None or add_mask[0] is not None, "The first observation in a sequence needs to be used!"
all_maps_out_r = []
self.prof.tick("maps_to_global")
# For each timestep, take the latest map that was available, transformed into this timestep
# Do only a maximum of one transformation for any map to avoid cascading of errors!
for i in range(batch_size):
if add_mask is None or add_mask[i]:
this_obs = (images[i:i+1], cam_poses[i:i+1])
self.last_observation = this_obs
else:
last_obs = self.last_observation
assert last_obs is not None, "The first observation in a sequence needs to be used!"
self.child_transformer.set_map(last_obs[0], last_obs[1])
this_obs = self.child_transformer.get_map(cam_poses[i:i+1])
all_maps_out_r.append(this_obs[0])
if show != "":
Presenter().show_image(this_obs.data[0, 0:3], show, torch=True, scale=8, waitkey=50)
self.prof.tick("integrate")
# Step 3: Convert all maps to local frame
all_maps_r = torch.cat(all_maps_out_r, dim=0)
# Write gifs for debugging
self.dbg_write_extra(all_maps_r, None)
self.set_maps(all_maps_r, cam_poses)
self.prof.tick("maps_to_local")
self.prof.loop()
self.prof.print_stats(10)
return all_maps_r, cam_poses
def forward_deprecated(self, images, cam_poses, add_mask=None, show=False):
#show="li"
self.prof.tick(".")
batch_size = len(cam_poses)
assert add_mask is None or add_mask[0] is not None, "The first observation in a sequence needs to be used!"
# Step 1: All local maps to global:
# TODO: Allow inputing global maps when new projector is ready
self.child_transformer.set_maps(images, cam_poses)
observations_g, _ = self.child_transformer.get_maps(None)
all_maps_out_g = []
self.prof.tick("maps_to_global")
# TODO: Draw past trajectory on an extra channel of the semantic map
# Step 2: Integrate serially in the global frame
for i in range(batch_size):
# If we don't have a map yet, initialize the map to this observation
if self.map_memory.latest_maps is None:
self.map_memory.set_map(observations_g[i:i+1], None)
# Allow masking of observations
if add_mask is None or add_mask[i]:
# Use the map from this frame
map_g = observations_g[i:i+1]
self.map_memory.set_map(map_g, None)
else:
# Use the latest available map oriented in global frame
map_g, _ = self.map_memory.get_map(None)
if show != "":
Presenter().show_image(map_g.data[0, 0:3], show, torch=True, scale=8, waitkey=50)
all_maps_out_g.append(map_g)
self.prof.tick("integrate")
# Step 3: Convert all maps to local frame
all_maps_g = torch.cat(all_maps_out_g, dim=0)
# Write gifs for debugging
self.dbg_write_extra(all_maps_g, None)
self.child_transformer.set_maps(all_maps_g, None)
maps_r, _ = self.child_transformer.get_maps(cam_poses)
self.set_maps(maps_r, cam_poses)
self.prof.tick("maps_to_local")
self.prof.loop()
self.prof.print_stats(10)
return maps_r, cam_poses
class ModelGSMNBiDomain(nn.Module):
def __init__(self, run_name="", model_instance_name=""):
super(ModelGSMNBiDomain, self).__init__()
self.model_name = "gsmn_bidomain"
self.run_name = run_name
self.name = model_instance_name
if not self.name:
self.name = ""
self.writer = LoggingSummaryWriter(
log_dir=f"runs/{run_name}/{self.name}")
self.params = get_current_parameters()["Model"]
self.aux_weights = get_current_parameters()["AuxWeights"]
self.use_aux = self.params["UseAuxiliaries"]
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.iter = nn.Parameter(torch.zeros(1), requires_grad=False)
self.tensor_store = KeyTensorStore()
self.aux_losses = AuxiliaryLosses()
self.rviz = None
if self.params.get("rviz"):
self.rviz = RvizInterface(
base_name="/gsmn/",
map_topics=["semantic_map", "grounding_map", "goal_map"],
markerarray_topics=["instruction"])
# Path-pred FPV model definition
# --------------------------------------------------------------------------------------------------------------
self.img_to_features_w = FPVToGlobalMap(
source_map_size=self.params["global_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"],
res_channels=self.params["resnet_channels"],
map_channels=self.params["feature_channels"],
img_w=self.params["img_w"],
img_h=self.params["img_h"],
cam_h_fov=self.params["cam_h_fov"],
img_dbg=IMG_DBG)
self.map_accumulator_w = LeakyIntegratorGlobalMap(
source_map_size=self.params["global_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"])
# Pre-process the accumulated map to do language grounding if necessary - in the world reference frame
if self.use_aux[
"grounding_map"] and not self.use_aux["grounding_features"]:
self.map_processor_a_w = LangFilterMapProcessor(
embed_size=self.params["emb_size"],
in_channels=self.params["feature_channels"],
out_channels=self.params["relevance_channels"],
spatial=False,
cat_out=True)
else:
self.map_processor_a_w = IdentityMapProcessor(
source_map_size=self.params["global_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"])
if self.use_aux["goal_map"]:
self.map_processor_b_r = LangFilterMapProcessor(
embed_size=self.params["emb_size"],
in_channels=self.params["relevance_channels"],
out_channels=self.params["goal_channels"],
spatial=self.params["spatial_goal_filter"],
cat_out=self.params["cat_rel_and_goal"])
else:
self.map_processor_b_r = IdentityMapProcessor(
source_map_size=self.params["local_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"])
# Common
# --------------------------------------------------------------------------------------------------------------
# Sentence Embedding
self.sentence_embedding = SentenceEmbeddingSimple(
self.params["word_emb_size"],
self.params["emb_size"],
self.params["emb_layers"],
dropout=0.0)
self.map_transform_w_to_r = MapTransformerBase(
source_map_size=self.params["global_map_size"],
dest_map_size=self.params["local_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"])
self.map_transform_r_to_w = MapTransformerBase(
source_map_size=self.params["local_map_size"],
dest_map_size=self.params["global_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"])
# Output an action given the global semantic map
if self.params["map_to_action"] == "downsample2":
self.map_to_action = EgoMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params["local_map_size"],
other_features_size=self.params["emb_size"])
elif self.params["map_to_action"] == "cropped":
self.map_to_action = CroppedMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params["local_map_size"])
# Auxiliary Objectives
# --------------------------------------------------------------------------------------------------------------
# We add all auxiliaries that are necessary. The first argument is the auxiliary name, followed by parameters,
# followed by variable number of names of inputs. ModuleWithAuxiliaries will automatically collect these inputs
# that have been saved with keep_auxiliary_input() during execution
if self.use_aux["class_features"]:
self.aux_losses.add_auxiliary(
ClassAuxiliary2D("aux_class", self.params["feature_channels"],
self.params["num_landmarks"],
self.params["dropout"], "fpv_features",
"lm_pos_fpv_features", "lm_indices",
"tensor_store"))
if self.use_aux["grounding_features"]:
self.aux_losses.add_auxiliary(
ClassAuxiliary2D("aux_ground",
self.params["relevance_channels"], 2,
self.params["dropout"], "fpv_features_g",
"lm_pos_fpv_features", "lm_mentioned",
"tensor_store"))
if self.use_aux["class_map"]:
self.aux_losses.add_auxiliary(
ClassAuxiliary2D("aux_class_map",
self.params["feature_channels"],
self.params["num_landmarks"],
self.params["dropout"], "map_S_W",
"lm_pos_map", "lm_indices", "tensor_store"))
if self.use_aux["grounding_map"]:
self.aux_losses.add_auxiliary(
ClassAuxiliary2D("aux_grounding_map",
self.params["relevance_channels"], 2,
self.params["dropout"], "map_R_W",
"lm_pos_map", "lm_mentioned", "tensor_store"))
if self.use_aux["goal_map"]:
self.aux_losses.add_auxiliary(
GoalAuxiliary2D("aux_goal_map", self.params["goal_channels"],
self.params["global_map_size"], "map_G_W",
"goal_pos_map"))
# RSS model uses templated data for landmark and side prediction
if self.use_aux["language"] and self.params["templates"]:
self.aux_losses.add_auxiliary(
ClassAuxiliary("aux_lang_lm", self.params["emb_size"],
self.params["num_landmarks"], 1,
"sentence_embed", "lm_mentioned_tplt"))
self.aux_losses.add_auxiliary(
ClassAuxiliary("aux_lang_side", self.params["emb_size"],
self.params["num_sides"], 1, "sentence_embed",
"side_mentioned_tplt"))
# CoRL model uses alignment-model groundings
elif self.use_aux["language"]:
# one output for each landmark, 2 classes per output. This is for finetuning, so use the embedding that's gonna be fine tuned
self.aux_losses.add_auxiliary(
ClassAuxiliary("aux_lang_lm_nl", self.params["emb_size"], 2,
self.params["num_landmarks"], "sentence_embed",
"lang_lm_mentioned"))
if self.use_aux["l1_regularization"]:
self.aux_losses.add_auxiliary(
FeatureRegularizationAuxiliary2D("aux_regularize_features",
"l1", "map_S_W"))
self.aux_losses.add_auxiliary(
FeatureRegularizationAuxiliary2D("aux_regularize_features",
"l1", "map_R_W"))
self.goal_acc_meter = MovingAverageMeter(10)
self.aux_losses.print_auxiliary_info()
self.action_loss = ActionLoss()
self.env_id = None
self.prev_instruction = None
self.seq_step = 0
def cuda(self, device=None):
CudaModule.cuda(self, device)
self.aux_losses.cuda(device)
self.sentence_embedding.cuda(device)
self.map_accumulator_w.cuda(device)
self.map_processor_a_w.cuda(device)
self.map_processor_b_r.cuda(device)
self.img_to_features_w.cuda(device)
self.map_to_action.cuda(device)
self.action_loss.cuda(device)
self.map_transform_w_to_r.cuda(device)
self.map_transform_r_to_w.cuda(device)
return self
def steal_cross_domain_modules(self, other_self):
# TODO: Consider whether to share auxiliary losses, and if so, all of them?
self.aux_losses = other_self.aux_losses
self.action_loss = other_self.action_loss
# TODO: Make sure that none of these things are stateful, or that there are resets after every forward pass
self.sentence_embedding = other_self.sentence_embedding
self.map_accumulator_w = other_self.map_accumulator_w
self.map_processor_a_w = other_self.map_processor_a_w
self.map_processor_b_r = other_self.map_processor_b_r
self.map_to_action = other_self.map_to_action
# We'll have a separate one of these for each domain
#self.img_to_features_w = other_self.img_to_features_w
# TODO: Check that statefulness is not an issue in sharing modules
# These have no parameters so no point sharing
#self.map_transform_w_to_r = other_self.map_transform_w_to_r
#self.map_transform_r_to_w = other_self.map_transform_r_to_w
def both_domain_parameters(self, other_self):
# This function iterates and yields parameters from this module and the other module, but does not yield
# shared parameters twice.
# First yield all of the other module's parameters
for p in other_self.parameters():
yield p
# Then yield all the parameters from the this module that are not shared with the other one
for p in self.img_to_features_w.parameters():
yield p
return
def get_iter(self):
return int(self.iter.data[0])
def inc_iter(self):
self.iter += 1
def load_img_feature_weights(self):
if self.params.get("load_feature_net"):
filename = self.params.get("feature_net_filename")
weights = load_pytorch_model(None, filename)
prefix = self.params.get("feature_net_tensor_name")
if prefix:
weights = find_state_subdict(weights, prefix)
# TODO: This breaks OOP conventions
self.img_to_features_w.img_to_features.load_state_dict(weights)
print(
f"Loaded pretrained weights from file {filename} with prefix {prefix}"
)
def init_weights(self):
self.img_to_features_w.init_weights()
self.load_img_feature_weights()
self.map_accumulator_w.init_weights()
self.sentence_embedding.init_weights()
self.map_to_action.init_weights()
self.map_processor_a_w.init_weights()
self.map_processor_b_r.init_weights()
def reset(self):
self.tensor_store.reset()
self.sentence_embedding.reset()
self.img_to_features_w.reset()
self.map_accumulator_w.reset()
self.map_transform_w_to_r.reset()
self.map_transform_r_to_w.reset()
self.load_img_feature_weights()
self.prev_instruction = None
def set_env_context(self, context):
print("Set env context to: " + str(context))
self.env_id = context["env_id"]
def save_viz(self, images_in, instruction):
# Save incoming images
imsave(
os.path.join(get_viz_dir_for_rollout(),
"fpv_" + str(self.seq_step) + ".png"), images_in)
#self.tensor_store.keep_input("fpv_img", images_in)
# Save all of these tensors from the tensor store as images
save_tensors_as_images(self.tensor_store, [
"images_w", "fpv_img", "fpv_features", "map_F_W", "map_M_W",
"map_S_W", "map_R_W", "map_R_R", "map_G_R", "map_G_W"
], str(self.seq_step))
# Save action as image
action = self.tensor_store.get_inputs_batch(
"action")[-1].data.cpu().squeeze().numpy()
action_fname = get_viz_dir_for_rollout() + "action_" + str(
self.seq_step) + ".png"
Presenter().save_action(action, action_fname, "")
instruction_fname = get_viz_dir_for_rollout() + "instruction.txt"
with open(instruction_fname, "w") as fp:
fp.write(instruction)
def get_action(self, state, instruction):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
#TODO: Absorb corpus within model
:return:
"""
# TODO: Simplify this
self.eval()
images_np_pure = state.image
state_np = state.state
#print("Act: " + debug_untokenize_instruction(instruction))
images_np = standardize_image(images_np_pure)
image_fpv = Variable(none_padded_seq_to_tensor([images_np]))
state = Variable(none_padded_seq_to_tensor([state_np]))
# Add the batch dimension
first_step = True
if instruction == self.prev_instruction:
first_step = False
self.prev_instruction = instruction
instruction_str = debug_untokenize_instruction(instruction)
# TODO: Move this to PomdpInterface (for now it's here because this is already visualizing the maps)
if first_step:
if self.rviz is not None:
self.rviz.publish_instruction_text(
"instruction", debug_untokenize_instruction(instruction))
img_in_t = image_fpv
img_in_t.volatile = True
instr_len = [len(instruction)] if instruction is not None else None
instruction = torch.LongTensor(instruction).unsqueeze(0)
instruction = cuda_var(instruction, self.is_cuda, self.cuda_device)
state.volatile = True
if self.is_cuda:
if img_in_t is not None:
img_in_t = img_in_t.cuda(self.cuda_device)
state = state.cuda(self.cuda_device)
step_enc = None
plan_now = None
self.seq_step += 1
action = self(img_in_t,
state,
instruction,
instr_len,
plan=plan_now,
pos_enc=step_enc)
passive_mode_debug_projections = True
if passive_mode_debug_projections:
self.show_landmark_locations(loop=False, states=state)
self.reset()
# Run auxiliary objectives for debugging purposes (e.g. to compute classification predictions)
if self.params.get("run_auxiliaries_at_test_time"):
_, _ = self.aux_losses.calculate_aux_loss(self.tensor_store,
reduce_average=True)
overlaid = self.get_overlaid_classification_results(
whole_batch=False)
# Save materials for analysis and presentation
if self.params["write_figures"]:
self.save_viz(images_np_pure, instruction_str)
output_action = action.squeeze().data.cpu().numpy()
stop_prob = output_action[3]
output_stop = 1 if stop_prob > self.params["stop_p"] else 0
output_action[3] = output_stop
return output_action
def get_overlaid_classification_results(self, map_not_features=False):
if map_not_features:
predictions_name = "aux_class_map_predictions"
else:
predictions_name = "aux_class_predictions"
predictions = self.tensor_store.get_latest_input(predictions_name)
if predictions is None:
return None
predictions = predictions[0].detach()
# Get the 3 channels corresponding to no landmark, banana and gorilla
predictions = predictions[[0, 3, 24], :, :]
images = self.tensor_store.get_latest_input("images")[0].detach()
overlaid = Presenter().overlaid_image(images,
predictions,
gray_bg=True)
return overlaid
def deterministic_action(self, action_mean, action_std, stop_prob):
batch_size = action_mean.size(0)
action = Variable(
empty_float_tensor((batch_size, 4), self.is_cuda,
self.cuda_device))
action[:, 0:3] = action_mean[:, 0:3]
action[:, 3] = stop_prob
return action
# This is called before beginning an execution sequence
def start_sequence(self):
self.seq_step = 0
self.reset()
print("RESETTED!")
return
# TODO: Move this somewhere and standardize
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pos_variance = 0
rot_variance = 0
if self.params.get("use_pos_noise"):
pos_variance = self.params["noisy_pos_variance"]
if self.params.get("use_rot_noise"):
rot_variance = self.params["noisy_rot_variance"]
pose = Pose(cam_pos, cam_rot)
if self.params.get("use_pos_noise") or self.params.get(
"use_rot_noise"):
pose = get_noisy_poses_torch(pose,
pos_variance,
rot_variance,
cuda=self.is_cuda,
cuda_device=self.cuda_device)
return pose
def forward(self,
images,
states,
instructions,
instr_lengths,
has_obs=None,
plan=None,
save_maps_only=False,
pos_enc=None,
noisy_poses=None,
halfway=False):
"""
:param images: BxCxHxW batch of images (observations)
:param states: BxK batch of drone states
:param instructions: BxM LongTensor where M is the maximum length of any instruction
:param instr_lengths: list of len B of integers, indicating length of each instruction
:param has_obs: list of booleans of length B indicating whether the given element in the sequence has an observation
:param yield_semantic_maps: If true, will not compute actions (full model), but return the semantic maps that
were built along the way in response to the images. This is ugly, but allows code reuse
:return:
"""
cam_poses = self.cam_poses_from_states(states)
g_poses = None #[None for pose in cam_poses]
self.prof.tick("out")
#str_instr = debug_untokenize_instruction(instructions[0].data[:instr_lengths[0]])
#print("Trn: " + str_instr)
# Calculate the instruction embedding
if instructions is not None:
# TODO: Take batch of instructions and their lengths, return batch of embeddings. Store the last one as internal state
sent_embeddings = self.sentence_embedding(instructions,
instr_lengths)
self.tensor_store.keep_inputs("sentence_embed", sent_embeddings)
else:
sent_embeddings = self.sentence_embedding.get()
self.prof.tick("embed")
# Extract and project features onto the egocentric frame for each image
features_w, coverages_w = self.img_to_features_w(images,
cam_poses,
sent_embeddings,
self.tensor_store,
show="")
# If we're running the model halway, return now. This is to compute enough features for the wasserstein critic, but no more
if halfway:
return None
# Don't back-prop into resnet if we're freezing these features (TODO: instead set requires grad to false)
if self.params.get("freeze_feature_net"):
features_w = features_w.detach()
self.prof.tick("img_to_map_frame")
self.tensor_store.keep_inputs("images", images)
self.tensor_store.keep_inputs("map_F_w", features_w)
self.tensor_store.keep_inputs("map_M_w", coverages_w)
if run_metadata.IS_ROLLOUT:
Presenter().show_image(features_w.data[0, 0:3],
"F",
torch=True,
scale=8,
waitkey=1)
# Accumulate the egocentric features in a global map
maps_s_w = self.map_accumulator_w(features_w,
coverages_w,
add_mask=has_obs,
show="acc" if IMG_DBG else "")
map_poses_w = g_poses
self.tensor_store.keep_inputs("map_S_W", maps_s_w)
self.prof.tick("map_accumulate")
Presenter().show_image(maps_s_w.data[0],
f"{self.name}_S_map_W",
torch=True,
scale=4,
waitkey=1)
# Do grounding of objects in the map chosen to do so
maps_r_w, map_poses_r_w = self.map_processor_a_w(maps_s_w,
sent_embeddings,
map_poses_w,
show="")
self.tensor_store.keep_inputs("map_R_W", maps_r_w)
Presenter().show_image(maps_r_w.data[0],
f"{self.name}_R_map_W",
torch=True,
scale=4,
waitkey=1)
self.prof.tick("map_proc_gnd")
# Transform to drone's reference frame
self.map_transform_w_to_r.set_maps(maps_r_w, map_poses_r_w)
maps_r_r, map_poses_r_r = self.map_transform_w_to_r.get_maps(cam_poses)
self.tensor_store.keep_inputs("map_R_R", maps_r_r)
self.prof.tick("transform_w_to_r")
# Predict goal location
maps_g_r, map_poses_g_r = self.map_processor_b_r(
maps_r_r, sent_embeddings, map_poses_r_r)
self.tensor_store.keep_inputs("map_G_R", maps_g_r)
# Transform back to map frame
self.map_transform_r_to_w.set_maps(maps_g_r, map_poses_g_r)
maps_g_w, _ = self.map_transform_r_to_w.get_maps(None)
self.tensor_store.keep_inputs("map_G_W", maps_g_w)
self.prof.tick("map_proc_b")
# Show and publish to RVIZ
Presenter().show_image(maps_g_w.data[0],
f"{self.name}_G_map_W",
torch=True,
scale=8,
waitkey=1)
if self.rviz:
self.rviz.publish_map(
"goal_map", maps_g_w[0].data.cpu().numpy().transpose(1, 2, 0),
self.params["world_size_m"])
# Output the final action given the processed map
action_pred = self.map_to_action(maps_g_r, sent_embeddings)
out_action = self.deterministic_action(action_pred[:, 0:3], None,
action_pred[:, 3])
self.tensor_store.keep_inputs("action", out_action)
self.prof.tick("map_to_action")
return out_action
# TODO: The below two methods seem to do the same thing
def maybe_cuda(self, tensor):
if self.is_cuda:
return tensor.cuda()
else:
return tensor
def cuda_var(self, tensor):
return cuda_var(tensor, self.is_cuda, self.cuda_device)
def unbatch(self, batch):
# TODO: Carefully consider this line. This is necessary to reset state between batches (e.g. delete all tensors in the tensor store)
self.reset()
# Get rid of the batch dimension for everything
images = self.maybe_cuda(batch["images"])[0]
seq_len = images.shape[0]
instructions = self.maybe_cuda(batch["instr"])[0][:seq_len]
instr_lengths = batch["instr_len"][0]
states = self.maybe_cuda(batch["states"])[0]
actions = self.maybe_cuda(batch["actions"])[0]
# Auxiliary labels
lm_pos_fpv = batch["lm_pos_fpv"][0]
lm_pos_map = batch["lm_pos_map"][0]
lm_indices = batch["lm_indices"][0]
goal_pos_map = batch["goal_loc"][0]
# TODO: Get rid of this. We will have lm_mentioned booleans and lm_mentioned_idx integers and that's it.
TEMPLATES = True
if TEMPLATES:
lm_mentioned_tplt = batch["lm_mentioned_tplt"][0]
side_mentioned_tplt = batch["side_mentioned_tplt"][0]
side_mentioned_tplt = self.cuda_var(side_mentioned_tplt)
lm_mentioned_tplt = self.cuda_var(lm_mentioned_tplt)
lang_lm_mentioned = None
else:
lm_mentioned_tplt = None
side_mentioned_tplt = None
lang_lm_mentioned = batch["lang_lm_mentioned"][0]
lm_mentioned = batch["lm_mentioned"][0]
# This is the first-timestep metadata
metadata = batch["md"][0]
lm_pos_map = [
torch.from_numpy(
transformations.pos_m_to_px(
p.numpy(), self.params["global_map_size"],
self.params["world_size_m"], self.params["world_size_px"]))
if p is not None else None for p in lm_pos_map
]
goal_pos_map = torch.from_numpy(
transformations.pos_m_to_px(goal_pos_map.numpy(),
self.params["global_map_size"],
self.params["world_size_m"],
self.params["world_size_px"]))
lm_pos_map = [
self.cuda_var(s.long()) if s is not None else None
for s in lm_pos_map
]
lm_pos_fpv_features = [
self.cuda_var(
(s /
self.img_to_features_w.img_to_features.get_downscale_factor()
).long()) if s is not None else None for s in lm_pos_fpv
]
lm_pos_fpv_img = [
self.cuda_var(s.long()) if s is not None else None
for s in lm_pos_fpv
]
lm_indices = [
self.cuda_var(s) if s is not None else None for s in lm_indices
]
goal_pos_map = self.cuda_var(goal_pos_map)
if not TEMPLATES:
lang_lm_mentioned = self.cuda_var(lang_lm_mentioned)
lm_mentioned = [
self.cuda_var(s) if s is not None else None for s in lm_mentioned
]
obs_mask = [True for _ in range(seq_len)]
plan_mask = [True for _ in range(seq_len)]
pos_enc = None
# TODO: Figure out how to keep these properly. Perhaps as a whole batch is best
self.tensor_store.keep_inputs("lm_pos_fpv_img", lm_pos_fpv_img)
self.tensor_store.keep_inputs("lm_pos_fpv_features",
lm_pos_fpv_features)
self.tensor_store.keep_inputs("lm_pos_map", lm_pos_map)
self.tensor_store.keep_inputs("lm_indices", lm_indices)
self.tensor_store.keep_inputs("goal_pos_map", goal_pos_map)
if not TEMPLATES:
self.tensor_store.keep_inputs("lang_lm_mentioned",
lang_lm_mentioned)
else:
self.tensor_store.keep_inputs("lm_mentioned_tplt",
lm_mentioned_tplt)
self.tensor_store.keep_inputs("side_mentioned_tplt",
side_mentioned_tplt)
self.tensor_store.keep_inputs("lm_mentioned", lm_mentioned)
# ----------------------------------------------------------------------------
# Optional Auxiliary Inputs
# ----------------------------------------------------------------------------
#if self.aux_losses.input_required("lm_pos_map"):
self.tensor_store.keep_inputs("lm_pos_map", lm_pos_map)
#if self.aux_losses.input_required("lm_indices"):
self.tensor_store.keep_inputs("lm_indices", lm_indices)
#if self.aux_losses.input_required("lm_mentioned"):
self.tensor_store.keep_inputs("lm_mentioned", lm_mentioned)
return images, instructions, instr_lengths, states, actions, \
lm_pos_fpv_img, lm_pos_fpv_features, lm_pos_map, lm_indices, goal_pos_map, \
lm_mentioned, lm_mentioned_tplt, side_mentioned_tplt, lang_lm_mentioned, \
metadata, obs_mask, plan_mask, pos_enc
def show_landmark_locations(self, loop=True, states=None):
# Show landmark locations in first-person images
img_all = self.tensor_store.get("images")
img_w_all = self.tensor_store.get("images_w")
import rollout.run_metadata as md
if md.IS_ROLLOUT:
# TODO: Discard this and move this to PomdpInterface or something
# (it's got nothing to do with the model)
# load landmark positions from configs
from data_io.env import load_env_config
from learning.datasets.aux_data_providers import get_landmark_locations_airsim
from learning.models.semantic_map.pinhole_camera_inv import PinholeCameraProjection
projector = PinholeCameraProjection(
map_size_px=self.params["global_map_size"],
world_size_px=self.params["world_size_px"],
world_size_m=self.params["world_size_m"],
img_x=self.params["img_w"],
img_y=self.params["img_h"],
cam_fov=self.params["cam_h_fov"],
#TODO: Handle correctly
domain="sim",
use_depth=False)
conf_json = load_env_config(md.ENV_ID)
landmark_names, landmark_indices, landmark_pos = get_landmark_locations_airsim(
conf_json)
cam_poses = self.cam_poses_from_states(states)
cam_pos = cam_poses.position[0]
cam_rot = cam_poses.orientation[0]
lm_pos_map_all = []
lm_pos_img_all = []
for i, landmark_in_world in enumerate(landmark_pos):
lm_pos_img, landmark_in_cam, status = projector.world_point_to_image(
cam_pos, cam_rot, landmark_in_world)
lm_pos_map = torch.from_numpy(
transformations.pos_m_to_px(
landmark_in_world[np.newaxis, :],
self.params["global_map_size"],
self.params["world_size_m"],
self.params["world_size_px"]))
lm_pos_map_all += [lm_pos_map[0]]
if lm_pos_img is not None:
lm_pos_img_all += [lm_pos_img]
lm_pos_img_all = [lm_pos_img_all]
lm_pos_map_all = [lm_pos_map_all]
else:
lm_pos_img_all = self.tensor_store.get("lm_pos_fpv_img")
lm_pos_map_all = self.tensor_store.get("lm_pos_map")
print("Plotting landmark points")
for i in range(len(img_all)):
p = Presenter()
overlay_fpv = p.overlay_pts_on_image(img_all[i][0],
lm_pos_img_all[i])
overlay_map = p.overlay_pts_on_image(img_w_all[i][0],
lm_pos_map_all[i])
p.show_image(overlay_fpv, "landmarks_on_fpv_img", scale=8)
p.show_image(overlay_map, "landmarks_on_map", scale=20)
if not loop:
break
def calc_tensor_statistics(self, prefix, tensor):
stats = {}
stats[f"{prefix}_mean"] = torch.mean(tensor).item()
stats[f"{prefix}_l2"] = torch.norm(tensor).item()
stats[f"{prefix}_stddev"] = torch.std(tensor).item()
return stats
def get_activation_statistics(self, keys):
stats = {}
from utils.dict_tools import dict_merge
for key in keys:
t = self.tensor_store.get_inputs_batch(key)
t_stats = self.calc_tensor_statistics(key, t)
stats = dict_merge(stats, t_stats)
return stats
# Forward pass for training (with batch optimizations
def sup_loss_on_batch(self, batch, eval, halfway=False):
self.prof.tick("out")
action_loss_total = Variable(
empty_float_tensor([1], self.is_cuda, self.cuda_device))
if batch is None:
print("Skipping None Batch")
return action_loss_total
images, instructions, instr_lengths, states, action_labels, \
lm_pos_fpv_img, lm_pos_fpv_features, lm_pos_map, lm_indices, goal_pos_map, \
lm_mentioned, lm_mentioned_tplt, side_mentioned_tplt, lang_lm_mentioned, \
metadata, obs_mask, plan_mask, pos_enc = self.unbatch(batch)
# ----------------------------------------------------------------------------
self.prof.tick("inputs")
pred_actions = self(images,
states,
instructions,
instr_lengths,
has_obs=obs_mask,
plan=plan_mask,
pos_enc=pos_enc,
halfway=halfway)
# Debugging landmark locations
if False:
self.show_landmark_locations()
# Don't compute any losses - those will not be used. All we care about are the intermediate activations
if halfway:
return None, self.tensor_store
action_losses, _ = self.action_loss(action_labels,
pred_actions,
batchreduce=False)
self.prof.tick("call")
action_losses = self.action_loss.batch_reduce_loss(action_losses)
action_loss = self.action_loss.reduce_loss(action_losses)
action_loss_total = action_loss
self.prof.tick("loss")
aux_losses, aux_metrics = self.aux_losses.calculate_aux_loss(
self.tensor_store, reduce_average=True)
aux_loss = self.aux_losses.combine_losses(aux_losses, self.aux_weights)
#overlaid = self.get_overlaid_classification_results()
#Presenter().show_image(overlaid, "classification", scale=2)
prefix = f"{self.model_name}/{'eval' if eval else 'train'}"
act_prefix = f"{self.model_name}_activations/{'eval' if eval else 'train'}"
# Mean, stddev, norm of maps
act_stats = self.get_activation_statistics(
["map_S_W", "map_R_W", "map_G_W"])
self.writer.add_dict(act_prefix, act_stats, self.get_iter())
self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.writer.add_dict(prefix, aux_losses, self.get_iter())
self.writer.add_dict(prefix, aux_metrics, self.get_iter())
self.writer.add_scalar(prefix + "/action_loss",
action_loss_total.data.cpu().item(),
self.get_iter())
# TODO: Log value here
self.writer.add_scalar(prefix + "/goal_accuracy",
self.goal_acc_meter.get(), self.get_iter())
self.prof.tick("auxiliaries")
total_loss = action_loss_total + aux_loss
self.inc_iter()
self.prof.tick("summaries")
self.prof.loop()
self.prof.print_stats(1)
return total_loss, self.tensor_store
def get_dataset(self,
data=None,
envs=None,
dataset_names=None,
dataset_prefix=None,
eval=False):
# TODO: Maybe use eval here
#if self.fpv:
data_sources = []
# If we're running auxiliary objectives, we need to include the data sources for the auxiliary labels
#if self.use_aux_class_features or self.use_aux_class_on_map or self.use_aux_grounding_features or self.use_aux_grounding_on_map:
#if self.use_aux_goal_on_map:
data_sources.append(aup.PROVIDER_LM_POS_DATA)
data_sources.append(aup.PROVIDER_GOAL_POS)
#data_sources.append(aup.PROVIDER_LANDMARKS_MENTIONED)
data_sources.append(aup.PROVIDER_LANG_TEMPLATE)
#if self.use_rot_noise or self.use_pos_noise:
# data_sources.append(aup.PROVIDER_POSE_NOISE)
return SegmentDataset(data=data,
env_list=envs,
dataset_names=dataset_names,
dataset_prefix=dataset_prefix,
aux_provider_names=data_sources,
segment_level=True)
def map_affine_test():
img = load_env_img(2, 128, 128)
img = standardize_image(img)
img = torch.from_numpy(img).float().unsqueeze(0)
pos = np.asarray([15, 15, 0])
quat = euler.euler2quat(0, 0, 0)
pose0 = Pose(pos[np.newaxis, :], quat[np.newaxis, :])
theta1 = 0.5
pos = np.asarray([15, 15, 0])
quat = euler.euler2quat(0, 0, theta1)
pose1 = Pose(pos[np.newaxis, :], quat[np.newaxis, :])
D = 10.0
pos = np.asarray([15 + D * math.cos(theta1), 15 + D * math.sin(theta1), 0])
quat = euler.euler2quat(0, 0, theta1)
pose2 = Pose(pos[np.newaxis, :], quat[np.newaxis, :])
affine = MapAffine(128, 128, 128)
res1 = affine(img, pose0, pose1)
res2 = affine(res1, pose1, pose2)
res3 = affine(img, pose0, pose2)
prof = SimpleProfiler(torch_sync=True, print=True)
affinebig = MapAffine(128, 256, 128)
prof.tick("init")
res3big = affinebig(img, pose0, pose2)
prof.tick("affinebig")
img = load_env_img(2, 32, 32)
img = standardize_image(img)
img = torch.from_numpy(img).float().unsqueeze(0).cuda()
affines = MapAffine(32, 64, 32).cuda()
torch.cuda.synchronize()
prof.tick("init")
res3s = affines(img, pose0, pose2)
prof.tick("affines")
prof.print_stats()
print("Start pose: ", pose0)
print(" Pose 1: ", pose1)
print(" Pose 2: ", pose2)
print("Res2, Res3 and Res3Big should align!")
Presenter().show_image(img[0], "img", torch=True, waitkey=False, scale=2)
Presenter().show_image(res1.data[0],
"res_1",
torch=True,
waitkey=False,
scale=2)
Presenter().show_image(res2.data[0],
"res_2",
torch=True,
waitkey=False,
scale=2)
Presenter().show_image(res3.data[0],
"res_3",
torch=True,
waitkey=False,
scale=2)
Presenter().show_image(res3big.data[0],
"res3big",
torch=True,
waitkey=True,
scale=2)
class LeakyIntegratorGlobalMap(MapTransformerBase):
def __init__(self, source_map_size, world_in_map_size, lamda=0.2):
super(LeakyIntegratorGlobalMap, self).__init__(source_map_size,
world_in_map_size)
self.map_size = source_map_size
self.world_size = world_in_map_size
self.child_transformer = MapTransformerBase(source_map_size,
world_in_map_size)
self.lamda = lamda
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.map_memory = []
self.dbg_t = None
self.seq = 0
def init_weights(self):
pass
def reset(self):
super(LeakyIntegratorGlobalMap, self).reset()
self.map_memory = []
self.child_transformer.reset()
self.seq = 0
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.child_transformer.cuda(device)
return self
def dbg_write_extra(self, map, pose):
if DebugWriter().should_write():
map = map[0:1, 0:3]
self.seq += 1
# Initialize a transformer module
if pose is not None:
if self.dbg_t is None:
self.dbg_t = MapTransformerBase(self.map_size,
self.world_size)
if self.is_cuda:
self.dbg_t.cuda(self.cuda_device)
# Transform the prediction to the global frame and write out to disk.
self.dbg_t.set_map(map, pose)
map_global, _ = self.dbg_t.get_map(None)
else:
map_global = map
DebugWriter().write_img(map_global[0],
"gif_overlaid",
args={
"world_size": self.world_size,
"name": "sm"
})
def forward(self,
images_w,
coverages_w,
add_mask=None,
reset_mask=None,
show=False):
#show="li"
self.prof.tick(".")
batch_size = len(images_w)
assert add_mask is None or add_mask[
0] is not None, "The first observation in a sequence needs to be used!"
masked_observations_w_add = self.lamda * images_w * coverages_w
all_maps_out_w = []
self.prof.tick("maps_to_global")
# TODO: Draw past trajectory on an extra channel of the semantic map
# Step 2: Integrate serially in the global frame
for i in range(batch_size):
if len(self.map_memory) == 0 or (reset_mask is not None
and reset_mask[i]):
new_map_w = images_w[i:i + 1]
# Allow masking of observations
elif add_mask is None or add_mask[i]:
# Get the current global-frame map
map_g = self.map_memory[-1]
cov_w = coverages_w[i:i + 1]
obs_cov_g = masked_observations_w_add[i:i + 1]
# Add the observation into the map using a leaky integrator rule (TODO: Output lamda from model)
new_map_w = (1 - self.lamda
) * map_g + obs_cov_g + self.lamda * map_g * (
1 - cov_w)
else:
new_map_w = self.map_memory[-1]
self.map_memory.append(new_map_w)
all_maps_out_w.append(new_map_w)
if show != "":
Presenter().show_image(new_map_w.data[0, 0:3],
show,
torch=True,
scale=8,
waitkey=50)
self.prof.tick("integrate")
# Step 3: Convert all maps to local frame
all_maps_w = torch.cat(all_maps_out_w, dim=0)
# Write gifs for debugging
#self.dbg_write_extra(all_maps_w, None)
self.prof.tick("maps_to_local")
self.prof.loop()
self.prof.print_stats(10)
return all_maps_w
def train_epoch(self,
env_list=None,
data_list_real=None,
data_list_sim=None,
eval=False,
restricted_domain=False):
if eval:
self.model_real.eval()
self.model_sim.eval()
self.model_critic.eval()
inference_type = "eval"
epoch_num = self.train_epoch_num
self.test_epoch_num += 1
else:
self.model_real.train()
self.model_sim.train()
self.model_critic.train()
inference_type = "train"
epoch_num = self.train_epoch_num
self.train_epoch_num += 1
# Allow testing with both domains being simulation domain
if self.params["sim_domain_only"]:
dataset_real = self.model_sim.get_dataset(
data=data_list_sim,
envs=env_list,
dataset_names=self.sim_datasets,
dataset_prefix="supervised",
eval=eval)
self.model_real = self.model_sim
else:
dataset_real = self.model_real.get_dataset(
data=data_list_real,
envs=env_list,
dataset_names=self.real_datasets,
dataset_prefix="supervised",
eval=eval)
dataset_sim = self.model_sim.get_dataset(
data=data_list_sim,
envs=env_list,
dataset_names=self.sim_datasets,
dataset_prefix="supervised",
eval=eval)
dual_model_loader = DualDataloader(dataset_a=dataset_real,
dataset_b=dataset_sim,
batch_size=self.batch_size,
shuffle=True,
num_workers=self.num_loaders,
pin_memory=False,
timeout=0,
drop_last=False,
joint_length="max")
dual_critic_loader = DualDataloader(dataset_a=dataset_real,
dataset_b=dataset_sim,
batch_size=self.batch_size,
shuffle=True,
num_workers=self.num_loaders,
pin_memory=False,
timeout=0,
drop_last=False,
joint_length="infinite")
dual_critic_iterator = iter(dual_critic_loader)
#wloss_before_updates_writer = LoggingSummaryWriter(log_dir=f"runs/{self.run_name}/discriminator_before_updates")
#wloss_after_updates_writer = LoggingSummaryWriter(log_dir=f"runs/{self.run_name}/discriminator_after_updates")
samples_real = len(dataset_real)
samples_sim = len(dataset_sim)
if samples_real == 0 or samples_sim == 0:
print(
f"DATASET HAS NO DATA: REAL: {samples_real > 0}, SIM: {samples_sim > 0}"
)
return -1.0
num_batches = len(dual_model_loader)
epoch_loss = 0
count = 0
critic_elapsed_iterations = 0
prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
prof.tick("out")
# Alternate training critic and model
for real_batch, sim_batch in dual_model_loader:
if restricted_domain == "real":
sim_batch = real_batch
elif restricted_domain == "simulator":
real_batch = sim_batch
if real_batch is None or sim_batch is None:
continue
# We run more updates on the sim data than on the real data to speed up training and
# avoid overfitting on the scarce real data
if self.sim_steps_per_real_step == 1 or self.sim_steps_per_real_step == 0 or count % self.sim_steps_per_real_step == 0:
train_sim_only = False
else:
train_sim_only = True
if sim_batch is None or (not train_sim_only
and real_batch is None):
continue
prof.tick("load_model_data")
# Train the model for model_steps in a row, then train the critic, and repeat
critic_batch_num = 0
if count % self.model_steps == 0 and not eval and not self.disable_wloss:
#print("\nTraining critic\n")
# Train the critic for self.critic_steps steps
if critic_elapsed_iterations > self.critic_warmup_iterations:
critic_steps = self.critic_steps
if self.critic_steps_cycle:
critic_steps_delta = int(
self.critic_steps_amplitude *
math.sin(count * 3.14159 /
self.critic_steps_period) + 0.5)
critic_steps += critic_steps_delta
else:
critic_steps = self.critic_warmup_steps
assert (critic_steps >
0), "Need more than one iteration for critic!"
for cstep in range(critic_steps):
# Each batch is actually a single rollout (we batch the rollout data across the sequence)
# To collect a batch of rollouts, we need to keep iterating
real_store = KeyTensorStore()
sim_store = KeyTensorStore()
for b in range(self.critic_batch_size):
# Get the next non-None batch
real_c_batch, sim_c_batch = None, None
while real_c_batch is None or sim_c_batch is None:
real_c_batch, sim_c_batch = next(
dual_critic_iterator)
prof.tick("critic_load_data")
# When training the critic, we don't backprop into the model, so we don't need gradients here
with torch.no_grad():
real_loss, real_store_b = self.model_real.sup_loss_on_batch(
real_c_batch, eval=eval, halfway=True)
sim_loss, sim_store_b = self.model_sim.sup_loss_on_batch(
sim_c_batch, eval=eval, halfway=True)
prof.tick("critic_features")
real_store.append(real_store_b)
sim_store.append(sim_store_b)
prof.tick("critic_store_append")
# Forward the critic
# The real_store and sim_store should really be a batch of multiple rollouts
wdist_loss_a, critic_store = self.model_critic.calc_domain_loss(
real_store, sim_store)
prof.tick("critic_domain_loss")
# Store the first and last critic loss
#if cstep == 0:
# wdist_loss_before_updates = wdist_loss_a.detach().cpu()
#if cstep == critic_steps - 1:
# wdist_loss_after_updates = wdist_loss_a.detach().cpu()
# Update the critic
critic_batch_num += 1
self.optim_critic.zero_grad()
# Wasserstein distance is maximum distance transport cost under Lipschitz constraint, so we maximize it
(-wdist_loss_a).backward()
self.optim_critic.step()
sys.stdout.write(
f"\r Critic batch: {critic_batch_num}/{critic_steps} d_loss: {wdist_loss_a.data.item()}"
)
sys.stdout.flush()
prof.tick("critic_backward")
# Write wasserstein loss before and after wasertein loss updates
#prefix = "pvn_critic" + ("/eval" if eval else "/train")
#wloss_before_updates_writer.add_scalar(f"{prefix}/w_score_before_updates", wdist_loss_before_updates.item(), self.model_critic.get_iter())
#wloss_after_updates_writer.add_scalar(f"{prefix}/w_score_before_updates", wdist_loss_after_updates.item(), self.model_critic.get_iter())
critic_elapsed_iterations += 1
print("Continuing model training\n")
# Clean up GPU memory
del wdist_loss_a
del critic_store
del real_store
del sim_store
del real_store_b
del sim_store_b
prof.tick("del")
# Forward the model
real_store = KeyTensorStore()
sim_store = KeyTensorStore()
real_loss = None
sim_loss = None
# TODO: Get rid of this loop!. It doesn't even loop over and sample new batches
for b in range(self.model_batch_size):
real_loss_b, real_store_b = self.model_real.sup_loss_on_batch(
real_batch,
eval,
halfway=train_sim_only,
grad_noise=self.real_grad_noise)
real_loss = (real_loss +
real_loss_b) if real_loss else real_loss_b
real_store.append(real_store_b)
sim_loss_b, sim_store_b = self.model_sim.sup_loss_on_batch(
sim_batch, eval, halfway=False)
sim_loss = (sim_loss + sim_loss_b) if sim_loss else sim_loss_b
sim_store.append(sim_store_b)
prof.tick("model_forward")
sim_loss = sim_loss / self.model_batch_size
if train_sim_only:
total_loss = sim_loss
else:
real_loss = real_loss / self.model_batch_size
total_loss = real_loss + sim_loss
if not self.disable_wloss:
# Forward the critic
wdist_loss_b, critic_store = self.model_critic.calc_domain_loss(
real_store, sim_store)
prof.tick("model_domain_loss")
# Minimize average real/sim losses, maximize domain loss
total_loss = total_loss + wdist_loss_b
# Grad step
if not eval and total_loss.requires_grad:
self.optim_models.zero_grad()
try:
total_loss.backward()
except Exception as e:
print("Error backpropping: ")
print(e)
self.optim_models.step()
prof.tick("model_backward")
sys.stdout.write(
f"\r Batch: {count}/{num_batches} r_loss: {real_loss.data.item() if real_loss else None} s_loss: {sim_loss.data.item()}"
)
sys.stdout.flush()
# Get losses as floats
epoch_loss += total_loss.data.item()
count += 1
self.train_segment += 0 if eval else 1
self.test_segment += 1 if eval else 0
prof.loop()
prof.print_stats(self.model_steps)
print("")
epoch_loss /= (count + 1e-15)
return epoch_loss
class ModelTrajectoryTopDown(ModuleWithAuxiliaries):
def __init__(self, run_name="", model_class=MODEL_RSS,
aux_class_features=False, aux_grounding_features=False,
aux_class_map=False, aux_grounding_map=False, aux_goal_map=False,
aux_lang=False, aux_traj=False, rot_noise=False, pos_noise=False):
super(ModelTrajectoryTopDown, self).__init__()
self.model_name = "sm_trajectory" + str(model_class)
self.model_class = model_class
print("Init model of type: ", str(model_class))
self.run_name = run_name
self.writer = LoggingSummaryWriter(log_dir="runs/" + run_name)
self.params = get_current_parameters()["Model"]
self.aux_weights = get_current_parameters()["AuxWeights"]
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.iter = nn.Parameter(torch.zeros(1), requires_grad=False)
# Auxiliary Objectives
self.use_aux_class_features = aux_class_features
self.use_aux_grounding_features = aux_grounding_features
self.use_aux_class_on_map = aux_class_map
self.use_aux_grounding_on_map = aux_grounding_map
self.use_aux_goal_on_map = aux_goal_map
self.use_aux_lang = aux_lang
self.use_aux_traj_on_map = aux_traj
self.use_aux_reg_map = self.aux_weights["regularize_map"]
self.use_rot_noise = rot_noise
self.use_pos_noise = pos_noise
# Path-pred FPV model definition
# --------------------------------------------------------------------------------------------------------------
self.img_to_features_w = FPVToGlobalMap(
source_map_size=self.params["global_map_size"], world_size_px=self.params["world_size_px"], world_size=self.params["world_size_m"],
res_channels=self.params["resnet_channels"], map_channels=self.params["feature_channels"],
img_w=self.params["img_w"], img_h=self.params["img_h"], img_dbg=IMG_DBG)
self.map_accumulator_w = LeakyIntegratorGlobalMap(source_map_size=self.params["global_map_size"], world_in_map_size=self.params["world_size_px"])
# Pre-process the accumulated map to do language grounding if necessary - in the world reference frame
if self.use_aux_grounding_on_map and not self.use_aux_grounding_features:
self.map_processor_a_w = LangFilterMapProcessor(
source_map_size=self.params["global_map_size"],
world_size=self.params["world_size_px"],
embed_size=self.params["emb_size"],
in_channels=self.params["feature_channels"],
out_channels=self.params["relevance_channels"],
spatial=False, cat_out=True)
else:
self.map_processor_a_w = IdentityMapProcessor(source_map_size=self.params["global_map_size"], world_size=self.params["world_size_px"])
if self.use_aux_goal_on_map:
self.map_processor_b_r = LangFilterMapProcessor(source_map_size=self.params["local_map_size"],
world_size=self.params["world_size_px"],
embed_size=self.params["emb_size"],
in_channels=self.params["relevance_channels"],
out_channels=self.params["goal_channels"],
spatial=True, cat_out=True)
else:
self.map_processor_b_r = IdentityMapProcessor(source_map_size=self.params["local_map_size"],
world_size=self.params["world_size_px"])
pred_channels = self.params["goal_channels"] + self.params["relevance_channels"]
# Common
# --------------------------------------------------------------------------------------------------------------
# Sentence Embedding
self.sentence_embedding = SentenceEmbeddingSimple(
self.params["word_emb_size"], self.params["emb_size"], self.params["emb_layers"])
self.map_transform_w_to_r = MapTransformerBase(source_map_size=self.params["global_map_size"],
dest_map_size=self.params["local_map_size"],
world_size=self.params["world_size_px"])
self.map_transform_r_to_w = MapTransformerBase(source_map_size=self.params["local_map_size"],
dest_map_size=self.params["global_map_size"],
world_size=self.params["world_size_px"])
# Batch select is used to drop and forget semantic maps at those timestaps that we're not planning in
self.batch_select = MapBatchSelect()
# Since we only have path predictions for some timesteps (the ones not dropped above), we use this to fill
# in the missing pieces by reorienting the past trajectory prediction into the frame of the current timestep
self.map_batch_fill_missing = MapBatchFillMissing(self.params["local_map_size"], self.params["world_size_px"])
# Passing true to freeze will freeze these weights regardless of whether they've been explicitly reloaded or not
enable_weight_saving(self.sentence_embedding, "sentence_embedding", alwaysfreeze=False)
# Output an action given the global semantic map
if self.params["map_to_action"] == "downsample2":
self.map_to_action = EgoMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params["local_map_size"],
other_features_size=self.params["emb_size"])
elif self.params["map_to_action"] == "cropped":
self.map_to_action = CroppedMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params["local_map_size"],
other_features_size=self.params["emb_size"]
)
# Don't freeze the trajectory to action weights, because it will be pre-trained during path-prediction training
# and finetuned on all timesteps end-to-end
enable_weight_saving(self.map_to_action, "map_to_action", alwaysfreeze=False, neverfreeze=True)
# Auxiliary Objectives
# --------------------------------------------------------------------------------------------------------------
# We add all auxiliaries that are necessary. The first argument is the auxiliary name, followed by parameters,
# followed by variable number of names of inputs. ModuleWithAuxiliaries will automatically collect these inputs
# that have been saved with keep_auxiliary_input() during execution
if aux_class_features:
self.add_auxiliary(ClassAuxiliary2D("aux_class", None, self.params["feature_channels"], self.params["num_landmarks"], self.params["dropout"],
"fpv_features", "lm_pos_fpv", "lm_indices"))
if aux_grounding_features:
self.add_auxiliary(ClassAuxiliary2D("aux_ground", None, self.params["relevance_channels"], 2, self.params["dropout"],
"fpv_features_g", "lm_pos_fpv", "lm_mentioned"))
if aux_class_map:
self.add_auxiliary(ClassAuxiliary2D("aux_class_map", self.params["world_size_px"], self.params["feature_channels"], self.params["num_landmarks"], self.params["dropout"],
"map_s_w_select", "lm_pos_map_select", "lm_indices_select"))
if aux_grounding_map:
self.add_auxiliary(ClassAuxiliary2D("aux_grounding_map", self.params["world_size_px"], self.params["relevance_channels"], 2, self.params["dropout"],
"map_a_w_select", "lm_pos_map_select", "lm_mentioned_select"))
if aux_goal_map:
self.add_auxiliary(GoalAuxiliary2D("aux_goal_map", self.params["goal_channels"], self.params["world_size_px"],
"map_b_w", "goal_pos_map"))
# RSS model uses templated data for landmark and side prediction
if self.use_aux_lang and self.params["templates"]:
self.add_auxiliary(ClassAuxiliary("aux_lang_lm", self.params["emb_size"], self.params["num_landmarks"], 1,
"sentence_embed", "lm_mentioned_tplt"))
self.add_auxiliary(ClassAuxiliary("aux_lang_side", self.params["emb_size"], self.params["num_sides"], 1,
"sentence_embed", "side_mentioned_tplt"))
# CoRL model uses alignment-model groundings
elif self.use_aux_lang:
# one output for each landmark, 2 classes per output. This is for finetuning, so use the embedding that's gonna be fine tuned
self.add_auxiliary(ClassAuxiliary("aux_lang_lm_nl", self.params["emb_size"], 2, self.params["num_landmarks"],
"sentence_embed", "lang_lm_mentioned"))
if self.use_aux_traj_on_map:
self.add_auxiliary(PathAuxiliary2D("aux_path", "map_b_r_select", "traj_gt_r_select"))
if self.use_aux_reg_map:
self.add_auxiliary(FeatureRegularizationAuxiliary2D("aux_regularize_features", None, "l1",
"map_s_w_select", "lm_pos_map_select"))
self.goal_good_criterion = GoalPredictionGoodCriterion(ok_distance=3.2)
self.goal_acc_meter = MovingAverageMeter(10)
self.print_auxiliary_info()
self.action_loss = ActionLoss()
self.env_id = None
self.prev_instruction = None
self.seq_step = 0
# TODO: Try to hide these in a superclass or something. They take up a lot of space:
def cuda(self, device=None):
ModuleWithAuxiliaries.cuda(self, device)
self.sentence_embedding.cuda(device)
self.map_accumulator_w.cuda(device)
self.map_processor_a_w.cuda(device)
self.map_processor_b_r.cuda(device)
self.img_to_features_w.cuda(device)
self.map_to_action.cuda(device)
self.action_loss.cuda(device)
self.map_batch_fill_missing.cuda(device)
self.map_transform_w_to_r.cuda(device)
self.map_transform_r_to_w.cuda(device)
self.batch_select.cuda(device)
self.map_batch_fill_missing.cuda(device)
return self
def get_iter(self):
return int(self.iter.data[0])
def inc_iter(self):
self.iter += 1
def init_weights(self):
self.img_to_features_w.init_weights()
self.map_accumulator_w.init_weights()
self.sentence_embedding.init_weights()
self.map_to_action.init_weights()
self.map_processor_a_w.init_weights()
self.map_processor_b_r.init_weights()
def reset(self):
# TODO: This is error prone. Create a class StatefulModule, iterate submodules and reset all stateful modules
super(ModelTrajectoryTopDown, self).reset()
self.sentence_embedding.reset()
self.img_to_features_w.reset()
self.map_accumulator_w.reset()
self.map_processor_a_w.reset()
self.map_processor_b_r.reset()
self.map_transform_w_to_r.reset()
self.map_transform_r_to_w.reset()
self.map_batch_fill_missing.reset()
self.prev_instruction = None
def setEnvContext(self, context):
print("Set env context to: " + str(context))
self.env_id = context["env_id"]
def save_viz(self, images_in):
imsave(get_viz_dir() + "fpv_" + str(self.seq_step) + ".png", images_in)
features_cam = self.get_inputs_batch("fpv_features")[-1, 0, 0:3]
save_tensor_as_img(features_cam, "F_c", self.env_id)
feature_map_torch = self.get_inputs_batch("f_w")[-1, 0, 0:3]
save_tensor_as_img(feature_map_torch, "F_w", self.env_id)
coverage_map_torch = self.get_inputs_batch("m_w")[-1, 0, 0:3]
save_tensor_as_img(coverage_map_torch, "M_w", self.env_id)
semantic_map_torch = self.get_inputs_batch("map_s_w_select")[-1, 0, 0:3]
save_tensor_as_img(semantic_map_torch, "S_w", self.env_id)
relmap_torch = self.get_inputs_batch("map_a_w_select")[-1, 0, 0:3]
save_tensor_as_img(relmap_torch, "R_w", self.env_id)
relmap_r_torch = self.get_inputs_batch("map_a_r_select")[-1, 0, 0:3]
save_tensor_as_img(relmap_r_torch, "R_r", self.env_id)
goalmap_torch = self.get_inputs_batch("map_b_w_select")[-1, 0, 0:3]
save_tensor_as_img(goalmap_torch, "G_w", self.env_id)
goalmap_r_torch = self.get_inputs_batch("map_b_r_select")[-1, 0, 0:3]
save_tensor_as_img(goalmap_r_torch, "G_r", self.env_id)
action = self.get_inputs_batch("action")[-1].data.cpu().squeeze().numpy()
action_fname = self.get_viz_dir() + "action_" + str(self.seq_step) + ".png"
Presenter().save_action(action, action_fname, "")
def get_action(self, state, instruction):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
#TODO: Absorb corpus within model
:return:
"""
# TODO: Simplify this
self.eval()
images_np_pure = state.image
state_np = state.state
#print("Act: " + debug_untokenize_instruction(instruction))
images_np = standardize_image(images_np_pure)
image_fpv = Variable(none_padded_seq_to_tensor([images_np]))
state = Variable(none_padded_seq_to_tensor([state_np]))
# Add the batch dimension
first_step = True
if instruction == self.prev_instruction:
first_step = False
self.prev_instruction = instruction
img_in_t = image_fpv
img_in_t.volatile = True
instr_len = [len(instruction)] if instruction is not None else None
instruction = torch.LongTensor(instruction).unsqueeze(0)
instruction = cuda_var(instruction, self.is_cuda, self.cuda_device)
state.volatile = True
if self.is_cuda:
if img_in_t is not None:
img_in_t = img_in_t.cuda(self.cuda_device)
state = state.cuda(self.cuda_device)
step_enc = None
plan_now = None
self.seq_step += 1
action = self(img_in_t, state, instruction, instr_len, plan=plan_now, pos_enc=step_enc)
# Save materials for paper and presentation
if False:
self.save_viz(images_np_pure)
output_action = action.squeeze().data.cpu().numpy()
stop_prob = output_action[3]
output_stop = 1 if stop_prob > 0.5 else 0
output_action[3] = output_stop
return output_action
def deterministic_action(self, action_mean, action_std, stop_prob):
batch_size = action_mean.size(0)
action = Variable(empty_float_tensor((batch_size, 4), self.is_cuda, self.cuda_device))
action[:, 0:3] = action_mean[:, 0:3]
action[:, 3] = stop_prob
return action
def sample_action(self, action_mean, action_std, stop_prob):
action = torch.normal(action_mean, action_std)
stop = torch.bernoulli(stop_prob)
return action, stop
# This is called before beginning an execution sequence
def start_sequence(self):
self.seq_step = 0
self.reset()
print("RESETTED!")
return
# TODO: Move this somewhere and standardize
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pos_variance = 0
rot_variance = 0
if self.use_pos_noise:
pos_variance = self.params["noisy_pos_variance"]
if self.use_rot_noise:
rot_variance = self.params["noisy_rot_variance"]
pose = Pose(cam_pos, cam_rot)
if self.use_pos_noise or self.use_rot_noise:
pose = get_noisy_poses_torch(pose, pos_variance, rot_variance, cuda=self.is_cuda, cuda_device=self.cuda_device)
return pose
def forward(self, images, states, instructions, instr_lengths, has_obs=None, plan=None, save_maps_only=False, pos_enc=None, noisy_poses=None):
"""
:param images: BxCxHxW batch of images (observations)
:param states: BxK batch of drone states
:param instructions: BxM LongTensor where M is the maximum length of any instruction
:param instr_lengths: list of len B of integers, indicating length of each instruction
:param has_obs: list of booleans of length B indicating whether the given element in the sequence has an observation
:param yield_semantic_maps: If true, will not compute actions (full model), but return the semantic maps that
were built along the way in response to the images. This is ugly, but allows code reuse
:return:
"""
cam_poses = self.cam_poses_from_states(states)
g_poses = None#[None for pose in cam_poses]
self.prof.tick("out")
#print("Trn: " + debug_untokenize_instruction(instructions[0].data[:instr_lengths[0]]))
# Calculate the instruction embedding
if instructions is not None:
# TODO: Take batch of instructions and their lengths, return batch of embeddings. Store the last one as internal state
sent_embeddings = self.sentence_embedding(instructions, instr_lengths)
self.keep_inputs("sentence_embed", sent_embeddings)
else:
sent_embeddings = self.sentence_embedding.get()
self.prof.tick("embed")
# Extract and project features onto the egocentric frame for each image
features_w, coverages_w = self.img_to_features_w(images, cam_poses, sent_embeddings, self, show="")
self.prof.tick("img_to_map_frame")
self.keep_inputs("f_w", features_w)
self.keep_inputs("m_w", coverages_w)
# Accumulate the egocentric features in a global map
maps_w = self.map_accumulator_w(features_w, coverages_w, add_mask=has_obs, show="acc" if IMG_DBG else "")
map_poses_w = g_poses
# TODO: Maybe keep maps_w if necessary
#self.keep_inputs("map_sm_local", maps_m)
self.prof.tick("map_accumulate")
# Throw away those timesteps that don't correspond to planning timesteps
maps_w_select, map_poses_w_select, cam_poses_select, noisy_poses_select, _, sent_embeddings_select, pos_enc = \
self.batch_select(maps_w, map_poses_w, cam_poses, noisy_poses, None, sent_embeddings, pos_enc, plan)
# Only process the maps on planning timesteps
if len(maps_w_select) > 0:
self.keep_inputs("map_s_w_select", maps_w_select)
self.prof.tick("batch_select")
# Process the map via the two map_procesors
# Do grounding of objects in the map chosen to do so
maps_w_select, map_poses_w_select = self.map_processor_a_w(maps_w_select, sent_embeddings_select, map_poses_w_select, show="")
self.keep_inputs("map_a_w_select", maps_w_select)
self.prof.tick("map_proc_gnd")
self.map_transform_w_to_r.set_maps(maps_w_select, map_poses_w_select)
maps_m_select, map_poses_m_select = self.map_transform_w_to_r.get_maps(cam_poses_select)
self.keep_inputs("map_a_r_select", maps_w_select)
self.prof.tick("transform_w_to_r")
self.keep_inputs("map_a_r_perturbed_select", maps_m_select)
self.prof.tick("map_perturb")
# Include positional encoding for path prediction
if pos_enc is not None:
sent_embeddings_pp = torch.cat([sent_embeddings_select, pos_enc.unsqueeze(1)], dim=1)
else:
sent_embeddings_pp = sent_embeddings_select
# Process the map via the two map_procesors (e.g. predict the trajectory that we'll be taking)
maps_m_select, map_poses_m_select = self.map_processor_b_r(maps_m_select, sent_embeddings_pp, map_poses_m_select)
self.keep_inputs("map_b_r_select", maps_m_select)
if True:
self.map_transform_r_to_w.set_maps(maps_m_select, map_poses_m_select)
maps_b_w_select, _ = self.map_transform_r_to_w.get_maps(None)
self.keep_inputs("map_b_w_select", maps_b_w_select)
self.prof.tick("map_proc_b")
else:
maps_m_select = None
maps_m, map_poses_m = self.map_batch_fill_missing(maps_m_select, cam_poses, plan, show="")
self.keep_inputs("map_b_r", maps_m)
self.prof.tick("map_fill_missing")
# Keep global maps for auxiliary objectives if necessary
if self.input_required("map_b_w"):
maps_b, _ = self.map_processor_b_r.get_maps(g_poses)
self.keep_inputs("map_b_w", maps_b)
self.prof.tick("keep_global_maps")
if run_metadata.IS_ROLLOUT:
pass
#Presenter().show_image(maps_m.data[0, 0:3], "plan_map_now", torch=True, scale=4, waitkey=1)
#Presenter().show_image(maps_w.data[0, 0:3], "sm_map_now", torch=True, scale=4, waitkey=1)
self.prof.tick("viz")
# Output the final action given the processed map
action_pred = self.map_to_action(maps_m, sent_embeddings)
out_action = self.deterministic_action(action_pred[:, 0:3], None, action_pred[:, 3])
self.keep_inputs("action", out_action)
self.prof.tick("map_to_action")
return out_action
# TODO: The below two methods seem to do the same thing
def maybe_cuda(self, tensor):
if self.is_cuda:
return tensor.cuda()
else:
return tensor
def cuda_var(self, tensor):
return cuda_var(tensor, self.is_cuda, self.cuda_device)
# Forward pass for training (with batch optimizations
def sup_loss_on_batch(self, batch, eval):
self.prof.tick("out")
action_loss_total = Variable(empty_float_tensor([1], self.is_cuda, self.cuda_device))
if batch is None:
print("Skipping None Batch")
return action_loss_total
images = self.maybe_cuda(batch["images"])
instructions = self.maybe_cuda(batch["instr"])
instr_lengths = batch["instr_len"]
states = self.maybe_cuda(batch["states"])
actions = self.maybe_cuda(batch["actions"])
# Auxiliary labels
lm_pos_fpv = batch["lm_pos_fpv"]
lm_pos_map = batch["lm_pos_map"]
lm_indices = batch["lm_indices"]
goal_pos_map = batch["goal_loc"]
TEMPLATES = True
if TEMPLATES:
lm_mentioned_tplt = batch["lm_mentioned_tplt"]
side_mentioned_tplt = batch["side_mentioned_tplt"]
else:
lm_mentioned = batch["lm_mentioned"]
lang_lm_mentioned = batch["lang_lm_mentioned"]
# stops = self.maybe_cuda(batch["stops"])
masks = self.maybe_cuda(batch["masks"])
# This is the first-timestep metadata
metadata = batch["md"]
seq_len = images.size(1)
batch_size = images.size(0)
count = 0
correct_goal_count = 0
goal_count = 0
# Loop thru batch
for b in range(batch_size):
seg_idx = -1
self.reset()
self.prof.tick("out")
b_seq_len = len_until_nones(metadata[b])
# TODO: Generalize this
# Slice the data according to the sequence length
b_metadata = metadata[b][:b_seq_len]
b_images = images[b][:b_seq_len]
b_instructions = instructions[b][:b_seq_len]
b_instr_len = instr_lengths[b][:b_seq_len]
b_states = states[b][:b_seq_len]
b_actions = actions[b][:b_seq_len]
b_lm_pos_fpv = lm_pos_fpv[b][:b_seq_len]
b_lm_pos_map = lm_pos_map[b][:b_seq_len]
b_lm_indices = lm_indices[b][:b_seq_len]
b_goal_pos = goal_pos_map[b][:b_seq_len]
if not TEMPLATES:
b_lang_lm_mentioned = lang_lm_mentioned[b][:b_seq_len]
b_lm_mentioned = lm_mentioned[b][:b_seq_len]
b_lm_pos_map = [self.cuda_var(s.long()) if s is not None else None for s in b_lm_pos_map]
b_lm_pos_fpv = [self.cuda_var((s / RESNET_FACTOR).long()) if s is not None else None for s in b_lm_pos_fpv]
b_lm_indices = [self.cuda_var(s) if s is not None else None for s in b_lm_indices]
b_goal_pos = self.cuda_var(b_goal_pos)
if not TEMPLATES:
b_lang_lm_mentioned = self.cuda_var(b_lang_lm_mentioned)
b_lm_mentioned = [self.cuda_var(s) if s is not None else None for s in b_lm_mentioned]
# TODO: Figure out how to keep these properly. Perhaps as a whole batch is best
# TODO: Introduce a key-value store (encapsulate instead of inherit)
self.keep_inputs("lm_pos_fpv", b_lm_pos_fpv)
self.keep_inputs("lm_pos_map", b_lm_pos_map)
self.keep_inputs("lm_indices", b_lm_indices)
self.keep_inputs("goal_pos_map", b_goal_pos)
if not TEMPLATES:
self.keep_inputs("lang_lm_mentioned", b_lang_lm_mentioned)
self.keep_inputs("lm_mentioned", b_lm_mentioned)
# TODO: Abstract all of these if-elses in a modular way once we know which ones are necessary
if TEMPLATES:
b_lm_mentioned_tplt = lm_mentioned_tplt[b][:b_seq_len]
b_side_mentioned_tplt = side_mentioned_tplt[b][:b_seq_len]
b_side_mentioned_tplt = self.cuda_var(b_side_mentioned_tplt)
b_lm_mentioned_tplt = self.cuda_var(b_lm_mentioned_tplt)
self.keep_inputs("lm_mentioned_tplt", b_lm_mentioned_tplt)
self.keep_inputs("side_mentioned_tplt", b_side_mentioned_tplt)
b_lm_mentioned = b_lm_mentioned_tplt
b_obs_mask = [True for _ in range(b_seq_len)]
b_plan_mask = [True for _ in range(b_seq_len)]
b_plan_mask_t_cpu = torch.Tensor(b_plan_mask) == True
b_plan_mask_t = self.maybe_cuda(b_plan_mask_t_cpu)
b_pos_enc = None
# ----------------------------------------------------------------------------
# Optional Auxiliary Inputs
# ----------------------------------------------------------------------------
if self.input_required("lm_pos_map_select"):
b_lm_pos_map_select = [lm_pos for i,lm_pos in enumerate(b_lm_pos_map) if b_plan_mask[i]]
self.keep_inputs("lm_pos_map_select", b_lm_pos_map_select)
if self.input_required("lm_indices_select"):
b_lm_indices_select = [lm_idx for i,lm_idx in enumerate(b_lm_indices) if b_plan_mask[i]]
self.keep_inputs("lm_indices_select", b_lm_indices_select)
if self.input_required("lm_mentioned_select"):
b_lm_mentioned_select = [lm_m for i,lm_m in enumerate(b_lm_mentioned) if b_plan_mask[i]]
self.keep_inputs("lm_mentioned_select", b_lm_mentioned_select)
# ----------------------------------------------------------------------------
self.prof.tick("inputs")
actions = self(b_images, b_states, b_instructions, b_instr_len,
has_obs=b_obs_mask, plan=b_plan_mask, pos_enc=b_pos_enc)
action_losses, _ = self.action_loss(b_actions, actions, batchreduce=False)
self.prof.tick("call")
action_losses = self.action_loss.batch_reduce_loss(action_losses)
action_loss = self.action_loss.reduce_loss(action_losses)
action_loss_total = action_loss
count += b_seq_len
self.prof.tick("loss")
action_loss_avg = action_loss_total / (count + 1e-9)
self.prof.tick("out")
# Doing this in the end (outside of se
aux_losses = self.calculate_aux_loss(reduce_average=True)
aux_loss = self.combine_aux_losses(aux_losses, self.aux_weights)
prefix = self.model_name + ("/eval" if eval else "/train")
self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.writer.add_dict(prefix, aux_losses, self.get_iter())
self.writer.add_scalar(prefix + "/action_loss", action_loss_avg.data.cpu()[0], self.get_iter())
# TODO: Log value here
self.writer.add_scalar(prefix + "/goal_accuracy", self.goal_acc_meter.get(), self.get_iter())
self.prof.tick("auxiliaries")
total_loss = action_loss_avg + aux_loss
self.inc_iter()
self.prof.tick("summaries")
self.prof.loop()
self.prof.print_stats(1)
return total_loss
def get_dataset(self, data=None, envs=None, dataset_name=None, eval=False):
# TODO: Maybe use eval here
#if self.fpv:
data_sources = []
# If we're running auxiliary objectives, we need to include the data sources for the auxiliary labels
#if self.use_aux_class_features or self.use_aux_class_on_map or self.use_aux_grounding_features or self.use_aux_grounding_on_map:
#if self.use_aux_goal_on_map:
data_sources.append(aup.PROVIDER_LM_POS_DATA)
data_sources.append(aup.PROVIDER_GOAL_POS)
#data_sources.append(aup.PROVIDER_LANDMARKS_MENTIONED)
data_sources.append(aup.PROVIDER_LANG_TEMPLATE)
#if self.use_rot_noise or self.use_pos_noise:
# data_sources.append(aup.PROVIDER_POSE_NOISE)
return SegmentDataset(data=data, env_list=envs, dataset_name=dataset_name, aux_provider_names=data_sources, segment_level=True)
class FpvImageDataset(Dataset):
def __init__(self, env_ids, dataset_name, eval, real, real_poses=None):
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.real = real
if real_poses:
self.real_poses = real_poses
else:
self.real_poses = real
self.eval = eval
self.dataset_name = dataset_name
self.env_ids = env_ids
# Assume that these parameters include cam_h_fov, img_w, img_h
self.model_params = P.get_current_parameters()["Model"]
self.cam_h_fov = self.model_params["cam_h_fov"]
self.img_w = self.model_params["img_w"]
self.img_h = self.model_params["img_h"]
self.data_params = P.get_current_parameters()["Data"]
self.load_img_w = self.data_params["load_img_w"]
self.load_img_h = self.data_params["load_img_h"]
self.prof.tick("out")
self.instructions, self.poses, self.images, self.env_ids_decompressed = self.data_from_env_ids(env_ids)
self.prof.tick("data from env")
self.lm_pos_fpv, self.lm_idx, self.lm_pos_map = self.compute_pos_idx(add_null=0)
self.prof.tick("compute pos idx")
self.filter_none()
self.prof.tick("filter none")
self.update_dic()
self.prof.tick("update dic")
self.prof.print_stats()
def __len__(self):
return len(self.env_ids_decompressed)
def __getitem__(self, index):
prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
prof.tick("out")
if type(index) == int:
image = self.images[index]
lm_pos_fpv = self.lm_pos_fpv[index]
lm_indices = self.lm_idx[index]
lm_pos_map = self.lm_pos_map[index]
prof.tick("retrieve data")
# data augmentation. If eval no data augmentation.
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(
image, lm_indices, lm_pos_fpv, self.img_h, self.img_w, self.eval, prof)
if (len(out_lm_indices) == 0) | (out_lm_indices is None):
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(
image, lm_indices, lm_pos_fpv, self.img_h, self.img_w, True, prof)
out_img = standardize_image(np.array(out_img))
out_img = torch.from_numpy(out_img)
out_lm_indices = torch.tensor(out_lm_indices)
out_lm_pos_fpv = torch.tensor(out_lm_pos_fpv)
sample = {"poses": self.poses[index],
"instructions": [], # self.instructions[index],
"images": out_img,
"env_ids": self.env_ids_decompressed[index],
"lm_pos_fpv": out_lm_pos_fpv,
"lm_indices": out_lm_indices,
"lm_pos_map": lm_pos_map}
prof.tick("dic")
prof.print_stats()
"""
elif type(index) == list:
out_images_list, out_lm_indices_list, out_lm_pos_fpv_list = [], [], []
for i in index:
image = self.images[i]
lm_pos_fpv = self.lm_pos_fpv[i]
lm_indices = self.lm_idx[i]
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(image, lm_indices, lm_pos_fpv, IMG_HEIGHT, IMG_WIDTH, self.eval, prof)
if (len(out_lm_indices) == 0) | (out_lm_indices is None):
out_img, out_lm_indices, out_lm_pos_fpv = data_augmentation(image, lm_indices, lm_pos_fpv, IMG_HEIGHT, IMG_WIDTH, True, prof)
out_images_list.append(out_img)
out_lm_indices_list.append(out_lm_indices)
out_lm_pos_fpv_list.append(out_lm_pos_fpv)
sample = {"poses": [self.poses[i] for i in index],
"instructions": [], # self.instructions[index],
"lm_mentioned": [],
"images": out_images_list,
"env_ids": [self.env_ids_decompressed[i] for i in index],
"lm_pos_fpv": out_lm_pos_fpv_list,
"lm_idx": out_lm_indices_list}
"""
return sample
def data_from_env_ids(self, env_ids, proba_selection=1.0):
images = []
poses = []
# list of all env_ids (with duplicates)
env_ids_decompressed = []
# TODO: fill instructions
instructions = []
print("Using {} images".format("real" if self.real else "simulated"))
for env_id in env_ids:
poses_dir = get_poses_dir(env_id)
images_dir = get_fpv_img_flight_dir(env_id, self.real)
pose_filenames = [f for f in os.listdir(poses_dir) if f.endswith('.json')]
image_filenames = [f for f in os.listdir(images_dir) if (f.endswith('.jpg') | f.endswith('.png'))]
try:
assert len(image_filenames) == len(pose_filenames)
except:
print("error {}: different count of poses and images".format(env_id))
if not(os.listdir(images_dir)):
print(images_dir+"is empty")
assert(not(not(os.listdir(images_dir))))
img_ids = np.sort(
[int(f.replace('.', '_').split('_')[-2]) for f in os.listdir(images_dir) if (f.endswith('.jpg') | f.endswith('.png'))])
try:
selected = np.random.choice(img_ids,
int(len(image_filenames) * proba_selection),
replace=False)
except:
print(img_ids)
selected_ids = np.sort(selected)
for img_id in selected_ids:
filename_pose = "pose_{}.json".format(img_id)
gen_imgpath = lambda id,ext: os.path.join(images_dir, f"usb_cam_{img_id}.{ext}")
img_path = gen_imgpath(img_id, "jpg")
if not os.path.exists(img_path):
img_path = gen_imgpath(img_id, "png")
#print(filename_pose, filename_img)
with open(os.path.join(poses_dir, filename_pose), 'r') as f:
try:
pose = json.load(f)["camera"]
poses.append(pose)
read_success = True
except:
read_success = False
if read_success:
# Images are resized in bigger shape. They will be resized to 256*144 after data augmentation
img = Image.open(img_path).resize((self.load_img_w, self.load_img_h))
images.append(img)
env_ids_decompressed.append((env_id, img_id))
return instructions, poses, images, env_ids_decompressed
def update_dic(self):
self.dic = {"poses": self.poses,
"instructions": self.instructions,
"images": self.images,
"env_ids": self.env_ids_decompressed,
"lm_pos_fpv": self.lm_pos_fpv,
"lm_indices": self.lm_idx,
"lm_pos_map": self.lm_pos_map}
def provider_lm_pos_lm_indices_fpv(self, env_ids, add_null=0):
"""
Data provider that gives the positions and indices of all landmarks visible in the FPV image.
:param pose_list: B*7 list of poses decomposed in 3 position and 4 orientation floats
[x,y,z, orient_x, orient_y, orient_z, orient_w]
img_x, img_y: shape of images
env_ids: list of environments.
:return: ("lm_pos", lm_pos) - lm_pos is a list (over timesteps) of lists (over landmarks visible in image) of the
landmark locations in image pixel coordinates
("lm_indices", lm_indices) - lm_indices is a list (over timesteps) of lists (over landmarks visible in image)
of the landmark indices for every landmark included in lm_pos. These are the landmark classifier labels
"""
list_of_conf = load_config_files(np.unique(env_ids))#, perception=True)
# add add_null empty objects on each config.
if add_null > 0:
for i, conf in enumerate(list_of_conf):
zpos = conf["zPos"]
xpos = conf["xPos"]
lm_positions = np.stack([xpos, zpos], 1)
for _ in range(add_null): # add 2 empty objects on configuration
i_null = 0
while i_null < 100:
xnull = np.random.rand() * 4.7
znull = np.random.rand() * 4.7
distances_to_lm = np.linalg.norm(lm_positions - np.array([xnull, znull]), axis=1)
min_dist_to_lm = np.min(distances_to_lm)
if min_dist_to_lm > 1.2:
break
i_null += 1
list_of_conf[i]["xPos"].append(xnull)
list_of_conf[i]["zPos"].append(znull)
list_of_conf[i]["landmarkName"].append("0Null")
list_of_conf[i]["radius"].append("100")
landmark_indices_list = []
landmark_pos_list = []
for conf_json in list_of_conf:
lm_names, landmark_indices, landmark_pos = get_landmark_locations_airsim(conf_json, add_empty=True)
#landmark_pos = get_landmark_locations(conf_json)
landmark_indices_list.append(landmark_indices)
landmark_pos_list.append(landmark_pos)
# TODO: Grab image size from segment_data
# TODO: recode CAM_FOV in parameters instead of hardcoding
projector = PinholeCameraProjection(
map_size_px=None,
world_size_px=None,
world_size_m=None,
img_x=self.load_img_w,
img_y=self.load_img_h,
cam_fov=self.cam_h_fov,
use_depth=False,
start_height_offset=0.0)
n_obs = len(self.poses)
lm_pos_fpv = []
lm_indices = []
lm_mentioned = []
lm_pos_map = []
for i_obs in range(n_obs):
# index of the environment in the list of unique environments
env_id = env_ids[i_obs]
i_env_id = np.where(np.unique(env_ids) == env_id)[0][0]
t_lm_pos_fpv = []
t_lm_indices = []
t_lm_pos_map = []
if self.poses[i_obs] is not None:
cam_pos = self.poses[i_obs]['position']
cam_rot = self.poses[i_obs]['orientation']
# convert xyzw to wxyz (airsim convention)
cam_rot_airsim = [cam_rot[-1]] + cam_rot[:-1]
for i_lm, landmark_in_world in enumerate(landmark_pos_list[i_env_id]):
# landmark_in_world = landmark_in_world[0]
landmark_idx = landmark_indices_list[i_env_id][i_lm]
landmark_in_img, landmark_in_cam, status = projector.world_point_to_image(cam_pos, cam_rot_airsim,
landmark_in_world)
# This is None if the landmark is behind the camera.
if landmark_in_img is not None:
# presenter.save_image(images[timestep], name="tmp.png", torch=True, draw_point=landmark_in_img)
t_lm_pos_fpv.append(landmark_in_img[0:2])
t_lm_pos_map.append(landmark_in_world[0:2])
t_lm_indices.append(landmark_idx)
# t_lm_mentioned.append(this_lm_mentioned)
if len(t_lm_pos_fpv) > 0:
t_lm_pos_fpv = torch.from_numpy(np.asarray(t_lm_pos_fpv)).float()
t_lm_pos_map = torch.from_numpy(np.asarray(t_lm_pos_map)).float()
t_lm_indices = torch.from_numpy(np.asarray(t_lm_indices)).long()
else:
t_lm_pos_fpv = None
t_lm_pos_map = None
t_lm_indices = None
t_lm_mentioned = None
lm_pos_fpv.append(t_lm_pos_fpv)
lm_pos_map.append(t_lm_pos_map)
lm_indices.append(t_lm_indices)
# lm_mentioned.append(t_lm_mentioned)
return np.array(lm_pos_fpv), np.array(lm_indices), lm_pos_map
def compute_pos_idx(self, add_null=0): # number of Null objects added to the map
"""
:param add_null: How many empty objects are added per config. 1 is generally enough
:return: landmark positions on images, landmark imdices on mages, lanmdark coordinates on map.
"""
env_ids = [x[0] for x in self.env_ids_decompressed]
# Provider is inspired from provider used for Airsim but different
lm_pos_fpv, lm_idx_fpv, lm_pos_map = self.provider_lm_pos_lm_indices_fpv(env_ids, add_null)
return lm_pos_fpv, lm_idx_fpv, lm_pos_map
def filter_none(self):
# Filter images that contain no object
no_none = []
for i, idx_list in enumerate(self.lm_idx):
if not((idx_list is None)):
if len(idx_list) > 0:
no_none.append(i)
self.poses = [self.poses[i] for i in no_none]
self.images = [self.images[i] for i in no_none]
self.env_ids_decompressed = [self.env_ids_decompressed[i] for i in no_none]
self.lm_idx = [self.lm_idx[i] for i in no_none]
self.lm_pos_fpv = [self.lm_pos_fpv[i] for i in no_none]
self.lm_pos_map = [self.lm_pos_map[i] for i in no_none]
def dic_to_pose(self, dic_of_pose):
"""
:param dic_of_pose: pose stored as a dictionary
:return: Pose object
"""
pose = Pose(torch.tensor(dic_of_pose['position']), torch.tensor(dic_of_pose['orientation']))
return pose
def collate_fn(self, list_of_samples):
images = [sample['images'] for sample in list_of_samples]
lm_indices = [sample['lm_indices'] for sample in list_of_samples]
lm_pos_fpv = [sample['lm_pos_fpv'] for sample in list_of_samples]
lm_pos_map = [sample['lm_pos_map'] for sample in list_of_samples]
env_ids = [sample['env_ids'] for sample in list_of_samples]
poses = [self.dic_to_pose(sample['poses'])for sample in list_of_samples]
images = torch.stack(images, dim=0)
keys = ["images", "env_ids", "poses", "lm_indices", "lm_pos_fpv", "lm_pos_map"] #"instructions", "lm_mentioned"]
out_tuple = (images, env_ids, poses, lm_indices, lm_pos_fpv, lm_pos_map) # instructions, lm_mentioned)
out_dict = dict(zip(keys, out_tuple))
return out_dict
class ModelMisra2017(ModuleWithAuxiliaries):
def __init__(self, run_name=""):
super(ModelMisra2017, self).__init__()
self.model_name = "misra2017"
self.run_name = run_name
self.writer = LoggingSummaryWriter(log_dir="runs/" + run_name)
self.params = get_current_parameters()["Model"]
self.trajectory_len = get_current_parameters(
)["Setup"]["trajectory_length"]
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.iter = nn.Parameter(torch.zeros(1), requires_grad=False)
# CNN over images - using what is essentially SimpleImage currently
self.image_module = ImageCnnEmnlp(
image_emb_size=self.params["image_emb_dim"],
input_num_channels=3 *
5, # 3 channels per image - 5 images in history
image_height=self.params["img_h"],
image_width=self.params["img_w"])
# LSTM to embed text
self.text_module = TextSimpleModule(
emb_dim=self.params["word_emb_dim"],
hidden_dim=self.params["emb_size"],
vocab_size=self.params["vocab_size"])
# Action module to embed previous action+block
self.action_module = ActionSimpleModule(
num_actions=self.params["num_actions"],
action_emb_size=self.params["action_emb_dim"])
# Put it all together
self.final_module = IncrementalMultimodalEmnlp(
image_module=self.image_module,
text_module=self.text_module,
action_module=self.action_module,
input_embedding_size=self.params["lstm_emb_dim"] +
self.params["image_emb_dim"] + self.params["action_emb_dim"],
output_hidden_size=self.params["h1_hidden_dim"],
blocks_hidden_size=self.params["blocks_hidden_dim"],
directions_hidden_size=self.params["action_hidden_dim"],
max_episode_length=self.trajectory_len)
self.action_loss = ActionLoss()
self.env_id = None
self.prev_instruction = None
self.seq_step = 0
self.model_state = None
self.image_emb_seq = None
self.state_feature = None
# TODO: Try to hide these in a superclass or something. They take up a lot of space:
def cuda(self, device=None):
ModuleWithAuxiliaries.cuda(self, device)
self.image_module.cuda(device)
self.text_module.cuda(device)
self.final_module.cuda(device)
self.action_module.cuda(device)
self.action_loss.cuda(device)
return self
def get_iter(self):
return int(self.iter.data[0])
def inc_iter(self):
self.iter += 1
def init_weights(self):
self.final_module.init_weights()
def reset(self):
# TODO: This is error prone. Create a class StatefulModule, iterate submodules and reset all stateful modules
super(ModelMisra2017, self).reset()
self.seq_step = 0
self.model_state = None
pass
def setEnvContext(self, context):
print("Set env context to: " + str(context))
self.env_id = context["env_id"]
def get_action(self, state, instruction):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
#TODO: Absorb corpus within model
:return:
"""
# TODO: Simplify this
self.eval()
images_np_pure = state.image
state_np = state.state
#print("Act: " + debug_untokenize_instruction(instruction))
images_np = standardize_image(images_np_pure)
image_fpv = Variable(none_padded_seq_to_tensor([images_np]))
state = Variable(none_padded_seq_to_tensor([state_np]))
# Add the batch dimension
first_step = True
if instruction == self.prev_instruction:
first_step = False
self.prev_instruction = instruction
img_in_t = image_fpv
img_in_t.volatile = True
instr_len = [len(instruction)] if instruction is not None else None
instruction = torch.LongTensor(instruction).unsqueeze(0)
instruction = cuda_var(instruction, self.is_cuda, self.cuda_device)
state.volatile = True
if self.is_cuda:
img_in_t = img_in_t.cuda(self.cuda_device)
state = state.cuda(self.cuda_device)
self.seq_step += 1
action = self(img_in_t, instruction, instr_len)
output_action = action.squeeze().data.cpu().numpy()
stop_prob = output_action[3]
output_stop = 1 if stop_prob > 0.5 else 0
output_action[3] = output_stop
#print("action: ", output_action)
return output_action
def deterministic_action(self, action_mean, action_std, stop_prob):
batch_size = action_mean.size(0)
action = Variable(
empty_float_tensor((batch_size, 4), self.is_cuda,
self.cuda_device))
action[:, 0:3] = action_mean[:, 0:3]
action[:, 3] = stop_prob
return action
def sample_action(self, action_mean, action_std, stop_prob):
action = torch.normal(action_mean, action_std)
stop = torch.bernoulli(stop_prob)
return action, stop
# This is called before beginning an execution sequence
def start_sequence(self):
self.seq_step = 0
self.reset()
print("RESETTED!")
return
# TODO: Move this somewhere and standardize
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pose = Pose(cam_pos, cam_rot)
return pose
def instructions_to_dipandrew(self, instructions, instr_lengths):
out = []
for i in range(len(instructions)):
instr_i = instructions[i:i + 1, 0:instr_lengths[i]]
out.append(instr_i)
return out
def forward(self, images, instructions, instr_lengths):
seq_len = len(images)
instr_dipandrew = self.instructions_to_dipandrew(
instructions, instr_lengths)
# Add sequence dimension, since we're treating batches as sequences
images = images.unsqueeze(0)
all_actions = []
for i in range(seq_len):
time_in = np.asarray([self.seq_step])
time_in = Variable(
self.maybe_cuda(torch.from_numpy(time_in).long()))
action_i, self.model_state = self.final_module(
images[0:1, i:i + 1], instr_dipandrew[i], time_in,
self.model_state)
self.seq_step += 1
all_actions.append(action_i)
actions = torch.cat(all_actions, dim=0)
return actions
def maybe_cuda(self, tensor):
if self.is_cuda:
return tensor.cuda()
else:
return tensor
def cuda_var(self, tensor):
return cuda_var(tensor, self.is_cuda, self.cuda_device)
# Forward pass for training (with batch optimizations
def sup_loss_on_batch(self, batch, eval):
self.prof.tick("out")
action_loss_total = Variable(
empty_float_tensor([1], self.is_cuda, self.cuda_device))
if batch is None:
print("Skipping None Batch")
return action_loss_total
images = self.maybe_cuda(batch["images"])
instructions = self.maybe_cuda(batch["instr"])
instr_lengths = batch["instr_len"]
actions = self.maybe_cuda(batch["actions"])
metadata = batch["md"]
batch_size = images.size(0)
count = 0
# Loop thru batch
for b in range(batch_size):
self.reset()
self.prof.tick("out")
b_seq_len = len_until_nones(metadata[b])
# TODO: Generalize this
# Slice the data according to the sequence length
b_metadata = metadata[b][:b_seq_len]
b_images = images[b][:b_seq_len]
b_instructions = instructions[b][:b_seq_len]
b_instr_len = instr_lengths[b][:b_seq_len]
b_actions = actions[b][:b_seq_len]
# ----------------------------------------------------------------------------
self.prof.tick("inputs")
actions = self(b_images, b_instructions, b_instr_len)
action_losses, _ = self.action_loss(b_actions,
actions,
batchreduce=False)
self.prof.tick("call")
action_losses = self.action_loss.batch_reduce_loss(action_losses)
action_loss = self.action_loss.reduce_loss(action_losses)
action_loss_total = action_loss
count += b_seq_len
self.prof.tick("loss")
action_loss_avg = action_loss_total / (count + 1e-9)
self.prof.tick("out")
prefix = self.model_name + ("/eval" if eval else "/train")
self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.writer.add_scalar(prefix + "/action_loss",
action_loss_avg.data.cpu()[0], self.get_iter())
total_loss = action_loss_avg
self.inc_iter()
self.prof.loop()
self.prof.print_stats(1)
return total_loss
def get_dataset(self, data=None, envs=None, dataset_name=None, eval=False):
# TODO: Maybe use eval here
#if self.fpv:
return SegmentDataset(data=data,
env_list=envs,
dataset_name=dataset_name,
aux_provider_names=[],
segment_level=True)
class ModelTrajectoryToAction(ModuleWithAuxiliaries):
def __init__(self, run_name=""):
super(ModelTrajectoryToAction, self).__init__()
self.model_name = "lsvd_action"
self.run_name = run_name
self.writer = LoggingSummaryWriter(log_dir="runs/" + run_name)
self.params = get_current_parameters()["ModelPVN"]
self.aux_weights = get_current_parameters()["AuxWeights"]
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.iter = nn.Parameter(torch.zeros(1), requires_grad=False)
# Common
# --------------------------------------------------------------------------------------------------------------
self.map_transform_w_to_s = MapTransformerBase(
source_map_size=self.params["global_map_size"],
dest_map_size=self.params["local_map_size"],
world_size=self.params["world_size_px"])
self.map_transform_r_to_w = MapTransformerBase(
source_map_size=self.params["local_map_size"],
dest_map_size=self.params["global_map_size"],
world_size=self.params["world_size_px"])
# Output an action given the global semantic map
if self.params["map_to_action"] == "downsample2":
self.map_to_action = EgoMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params["local_map_size"],
other_features_size=self.params["emb_size"])
elif self.params["map_to_action"] == "cropped":
self.map_to_action = CroppedMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params["local_map_size"],
manual=self.params["manual_rule"],
path_only=self.params["action_in_path_only"],
recurrence=self.params["action_recurrence"])
self.spatialsoftmax = SpatialSoftmax2d()
self.gt_fill_missing = MapBatchFillMissing(
self.params["local_map_size"], self.params["world_size_px"])
# Don't freeze the trajectory to action weights, because it will be pre-trained during path-prediction training
# and finetuned on all timesteps end-to-end
enable_weight_saving(self.map_to_action,
"map_to_action",
alwaysfreeze=False,
neverfreeze=True)
self.action_loss = ActionLoss()
self.env_id = None
self.seg_idx = None
self.prev_instruction = None
self.seq_step = 0
self.get_act_start_pose = None
self.gt_labels = None
# TODO: Try to hide these in a superclass or something. They take up a lot of space:
def cuda(self, device=None):
ModuleWithAuxiliaries.cuda(self, device)
self.map_to_action.cuda(device)
self.action_loss.cuda(device)
self.map_transform_w_to_s.cuda(device)
self.map_transform_r_to_w.cuda(device)
self.gt_fill_missing.cuda(device)
return self
def get_iter(self):
return int(self.iter.data[0])
def inc_iter(self):
self.iter += 1
def init_weights(self):
self.map_to_action.init_weights()
def reset(self):
# TODO: This is error prone. Create a class StatefulModule, iterate submodules and reset all stateful modules
super(ModelTrajectoryToAction, self).reset()
self.map_transform_w_to_s.reset()
self.map_transform_r_to_w.reset()
self.gt_fill_missing.reset()
def setEnvContext(self, context):
print("Set env context to: " + str(context))
self.env_id = context["env_id"]
def start_segment_rollout(self):
import rollout.run_metadata as md
m_size = self.params["local_map_size"]
w_size = self.params["world_size_px"]
self.gt_labels = get_top_down_ground_truth_static_global(
md.ENV_ID, md.START_IDX, md.END_IDX, m_size, m_size, w_size,
w_size)
self.seg_idx = md.SEG_IDX
self.gt_labels = self.maybe_cuda(self.gt_labels)
if self.params["clear_history"]:
self.start_sequence()
def get_action(self, state, instruction):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
#TODO: Absorb corpus within model
:return:
"""
prof = SimpleProfiler(print=True)
prof.tick(".")
# TODO: Simplify this
self.eval()
images_np_pure = state.image
state_np = state.state
state = Variable(none_padded_seq_to_tensor([state_np]))
#print("Act: " + debug_untokenize_instruction(instruction))
# Add the batch dimension
first_step = True
if instruction == self.prev_instruction:
first_step = False
self.prev_instruction = instruction
if first_step:
self.get_act_start_pose = self.cam_poses_from_states(state[0:1])
self.seq_step += 1
# This is for training the policy to mimic the ground-truth state distribution with oracle actions
# b_traj_gt_w_select = b_traj_ground_truth[b_plan_mask_t[:, np.newaxis, np.newaxis, np.newaxis].expand_as(b_traj_ground_truth)].view([-1] + gtsize)
traj_gt_w = Variable(self.gt_labels)
b_poses = self.cam_poses_from_states(state)
# TODO: These source and dest should go as arguments to get_maps (in forward pass not params)
transformer = MapTransformerBase(
source_map_size=self.params["global_map_size"],
world_size=self.params["world_size_px"],
dest_map_size=self.params["local_map_size"])
self.maybe_cuda(transformer)
transformer.set_maps(traj_gt_w, None)
traj_gt_r, _ = transformer.get_maps(b_poses)
self.clear_inputs("traj_gt_r_select")
self.clear_inputs("traj_gt_w_select")
self.keep_inputs("traj_gt_r_select", traj_gt_r)
self.keep_inputs("traj_gt_w_select", traj_gt_w)
action = self(traj_gt_r, firstseg=[self.seq_step == 1])
output_action = action.squeeze().data.cpu().numpy()
stop_prob = output_action[3]
output_stop = 1 if stop_prob > self.params["stop_threshold"] else 0
output_action[3] = output_stop
return output_action
def deterministic_action(self, action_mean, action_std, stop_prob):
batch_size = action_mean.size(0)
action = Variable(
empty_float_tensor((batch_size, 4), self.is_cuda,
self.cuda_device))
action[:, 0:3] = action_mean[:, 0:3]
action[:, 3] = stop_prob
return action
def sample_action(self, action_mean, action_std, stop_prob):
action = torch.normal(action_mean, action_std)
stop = torch.bernoulli(stop_prob)
return action, stop
# This is called before beginning an execution sequence
def start_sequence(self):
self.seq_step = 0
self.reset()
print("RESETTED!")
return
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pose = Pose(cam_pos, cam_rot)
return pose
def save(self, epoch):
filename = self.params[
"map_to_action_file"] + "_" + self.run_name + "_" + str(epoch)
save_pytorch_model(self.map_to_action, filename)
print("Saved action model to " + filename)
def forward(self, traj_gt_r, firstseg=None):
"""
:param images: BxCxHxW batch of images (observations)
:param states: BxK batch of drone states
:param instructions: BxM LongTensor where M is the maximum length of any instruction
:param instr_lengths: list of len B of integers, indicating length of each instruction
:param has_obs: list of booleans of length B indicating whether the given element in the sequence has an observation
:param yield_semantic_maps: If true, will not compute actions (full model), but return the semantic maps that
were built along the way in response to the images. This is ugly, but allows code reuse
:return:
"""
action_pred = self.map_to_action(traj_gt_r,
None,
fistseg_mask=firstseg)
out_action = self.deterministic_action(action_pred[:, 0:3], None,
action_pred[:, 3])
self.keep_inputs("action", out_action)
self.prof.tick("map_to_action")
return out_action
def maybe_cuda(self, tensor):
if self.is_cuda:
if False:
if type(tensor) is Variable:
tensor.data.pin_memory()
elif type(tensor) is Pose:
pass
elif type(tensor) is torch.FloatTensor:
tensor.pin_memory()
return tensor.cuda()
else:
return tensor
def cuda_var(self, tensor):
return cuda_var(tensor, self.is_cuda, self.cuda_device)
# Forward pass for training (with batch optimizations
def sup_loss_on_batch(self, batch, eval):
self.prof.tick("out")
action_loss_total = Variable(
empty_float_tensor([1], self.is_cuda, self.cuda_device))
if batch is None:
print("Skipping None Batch")
return action_loss_total
actions = self.maybe_cuda(batch["actions"])
states = self.maybe_cuda(batch["states"])
firstseg_mask = batch["firstseg_mask"]
# Auxiliary labels
traj_ground_truth_select = self.maybe_cuda(batch["traj_ground_truth"])
# stops = self.maybe_cuda(batch["stops"])
metadata = batch["md"]
batch_size = actions.size(0)
count = 0
# Loop thru batch
for b in range(batch_size):
seg_idx = -1
self.reset()
self.prof.tick("out")
b_seq_len = len_until_nones(metadata[b])
# TODO: Generalize this
# Slice the data according to the sequence length
b_metadata = metadata[b][:b_seq_len]
b_actions = actions[b][:b_seq_len]
b_traj_ground_truth_select = traj_ground_truth_select[b]
b_states = states[b][:b_seq_len]
self.keep_inputs("traj_gt_global_select",
b_traj_ground_truth_select)
#b_firstseg = get_obs_mask_segstart(b_metadata)
b_firstseg = firstseg_mask[b][:b_seq_len]
# ----------------------------------------------------------------------------
# Optional Auxiliary Inputs
# ----------------------------------------------------------------------------
gtsize = list(b_traj_ground_truth_select.size())[1:]
b_poses = self.cam_poses_from_states(b_states)
# TODO: These source and dest should go as arguments to get_maps (in forward pass not params)
transformer = MapTransformerBase(
source_map_size=self.params["global_map_size"],
world_size=self.params["world_size_px"],
dest_map_size=self.params["local_map_size"])
self.maybe_cuda(transformer)
transformer.set_maps(b_traj_ground_truth_select, None)
traj_gt_local_select, _ = transformer.get_maps(b_poses)
self.keep_inputs("traj_gt_r_select", traj_gt_local_select)
self.keep_inputs("traj_gt_w_select", b_traj_ground_truth_select)
# ----------------------------------------------------------------------------
self.prof.tick("inputs")
actions = self(traj_gt_local_select, firstseg=b_firstseg)
action_losses, _ = self.action_loss(b_actions,
actions,
batchreduce=False)
action_losses = self.action_loss.batch_reduce_loss(action_losses)
action_loss = self.action_loss.reduce_loss(action_losses)
action_loss_total = action_loss
count += b_seq_len
self.prof.tick("loss")
action_loss_avg = action_loss_total / (count + 1e-9)
prefix = self.model_name + ("/eval" if eval else "/train")
self.writer.add_scalar(prefix + "/action_loss",
action_loss_avg.data.cpu()[0], self.get_iter())
self.prof.tick("out")
prefix = self.model_name + ("/eval" if eval else "/train")
self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.inc_iter()
self.prof.tick("summaries")
self.prof.loop()
self.prof.print_stats(1)
return action_loss_avg
def get_dataset(self, data=None, envs=None, dataset_name=None, eval=False):
# TODO: Maybe use eval here
data_sources = []
data_sources.append(aup.PROVIDER_TRAJECTORY_GROUND_TRUTH_STATIC)
return SegmentDataset(data=data,
env_list=envs,
dataset_name=dataset_name,
aux_provider_names=data_sources,
segment_level=True)
class FPVToGlobalMap(MapTransformerBase):
def __init__(self,
source_map_size,
world_size_px,
world_size_m,
img_w,
img_h,
res_channels,
map_channels,
cam_h_fov,
domain,
img_dbg=False):
super(FPVToGlobalMap, self).__init__(source_map_size, world_size_px,
world_size_m)
self.image_debug = img_dbg
self.use_lang_filter = False
# Process images using a resnet to get a feature map
if self.image_debug:
self.img_to_features = nn.MaxPool2d(8)
else:
# Provide enough padding so that the map is scaled down by powers of 2.
self.img_to_features = ImgToFeatures(res_channels, map_channels,
img_w, img_h)
# Project feature maps to the global frame
self.map_projection = PinholeCameraProjectionModuleGlobal(
source_map_size, world_size_px, world_size_m, img_w, img_h,
cam_h_fov, domain)
self.grid_sampler = GridSampler()
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.actual_images = None
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.map_projection.cuda(device)
self.grid_sampler.cuda(device)
self.img_to_features.cuda(device)
if self.use_lang_filter:
self.lang_filter.cuda(device)
def init_weights(self):
if not self.image_debug:
self.img_to_features.init_weights()
def reset(self):
self.actual_images = None
super(FPVToGlobalMap, self).reset()
def forward_fpv_features(self, images, sentence_embeds, tensor_store=None):
"""
Compute the first-person image features given the first-person images
If grounding loss is enabled, will also return sentence_embedding conditioned image features
:param images: images to compute features on
:param sentence_embeds: sentence embeddings for each image
:param parent:
:return: features_fpv_vis - the visual features extracted using the ResNet
features_fpv_gnd - the grounded visual features obtained after applying a 1x1 language-conditioned conv
"""
# Extract image features. If they've been precomputed ahead of time, just grab it by the provided index
features_fpv_vis = self.img_to_features(images)
if tensor_store is not None:
tensor_store.keep_inputs("fpv_features", features_fpv_vis)
#self.prof.tick("feat")
# If required, pre-process image features by grounding them in language
if self.use_lang_filter:
self.lang_filter.precompute_conv_weights(sentence_embeds)
features_gnd = self.lang_filter(features_fpv_vis)
if tensor_store is not None:
tensor_store.keep_inputs("fpv_features_g", features_gnd)
#self.prof.tick("gnd")
return features_fpv_vis, features_gnd
return features_fpv_vis, None
def forward(self,
images,
poses,
sentence_embeds,
tensor_store=None,
show="",
halfway=False):
self.prof.tick("out")
# self.map_projection is implemented in numpy on CPU.
# If we give it poses on the GPU, it will transfer them to the CPU, which causes a CUDA SYNC and waits for the
# ResNet forward pass to complete. To make use of full GPU/CPU concurrency, we move the poses to the cpu first
poses_cpu = poses.cpu()
features_fpv_vis_only, features_fpv_gnd_only = self.forward_fpv_features(
images, sentence_embeds, tensor_store)
# Halfway HAS to be True and not only truthy
if halfway == True:
return None, None
# If we have grounding features, the overall features are a concatenation of grounded and non-grounded features
if features_fpv_gnd_only is not None:
features_fpv_all = torch.cat(
[features_fpv_gnd_only, features_fpv_vis_only], dim=1)
else:
features_fpv_all = features_fpv_vis_only
# Project first-person view features on to the map in egocentric frame
grid_maps_cpu = self.map_projection(poses_cpu)
grid_maps = grid_maps_cpu.to(features_fpv_all.device)
self.prof.tick("proj_map_and_features")
features_r = self.grid_sampler(features_fpv_all, grid_maps)
if DEBUG_WITH_IMG:
img_w = self.grid_sampler(images, grid_maps)
if tensor_store is not None:
tensor_store.keep_inputs("images_w", img_w)
#Presenter().show_image(images.data[0], "fpv_raw", torch=True, scale=2, waitkey=1)
#Presenter().show_image(img_w.data[0], "fpv_projected", torch=True, scale=2, waitkey=1)
# Obtain an ego-centric map mask of where we have new information
ones_size = list(features_fpv_all.size())
ones_size[1] = 1
tmp_ones = torch.ones(ones_size).to(features_r.device)
new_coverages = self.grid_sampler(tmp_ones, grid_maps)
# Make sure that new_coverage is a 0/1 mask (grid_sampler applies bilinear interpolation)
new_coverages = new_coverages - torch.min(new_coverages)
new_coverages = new_coverages / (torch.max(new_coverages) + 1e-18)
self.prof.tick("gsample")
if show != "":
Presenter().show_image(images.data[0, 0:3],
show + "fpv_img",
torch=True,
scale=2,
waitkey=1)
grid_maps_np = grid_maps.data[0].numpy()
Presenter().show_image(grid_maps_np,
show + "_grid",
torch=False,
scale=4,
waitkey=1)
Presenter().show_image(features_fpv_all.data[0, 0:3],
show + "_preproj",
torch=True,
scale=8,
waitkey=1)
Presenter().show_image(images.data[0, 0:3],
show + "_img",
torch=True,
scale=1,
waitkey=1)
Presenter().show_image(features_r.data[0, 0:3],
show + "_projected",
torch=True,
scale=6,
waitkey=1)
Presenter().show_image(new_coverages.data[0],
show + "_covg",
torch=True,
scale=6,
waitkey=1)
self.prof.loop()
self.prof.print_stats(10)
return features_r, new_coverages
class MapAffine(nn.Module):
# TODO: Cleanup unused run_params
def __init__(self, map_size, world_size_px, world_size_m):
super(MapAffine, self).__init__()
self.map_size = map_size
self.world_size_px = world_size_px
self.world_size_m = world_size_m
self.affine_2d = Affine2D()
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
def pose_2d_to_mat_np(self, pose_2d, inv=False):
pos = pose_2d.position
yaw = pose_2d.orientation
# Transform the img so that the drone's position ends up at the origin
# TODO: Add batch support
t1 = get_affine_trans_2d(-pos)
# Rotate the img so that it's aligned with the drone's orientation
yaw = -yaw
t2 = get_affine_rot_2d(-yaw)
# Translate the img so that it's centered around the drone
t3 = get_affine_trans_2d([self.map_size / 2, self.map_size / 2])
mat = np.dot(t3, np.dot(t2, t1))
# Swap x and y axes (because of the BxCxHxW a.k.a BxCxYxX convention)
swapmat = mat[[1, 0, 2], :]
mat = swapmat[:, [1, 0, 2]]
if inv:
mat = np.linalg.inv(mat)
return mat
def get_old_to_new_pose_mat(self, old_pose, new_pose):
old_T_inv = self.pose_2d_to_mat_np(old_pose, inv=True)
new_T = self.pose_2d_to_mat_np(new_pose, inv=False)
mat = np.dot(new_T, old_T_inv)
#mat = new_T
mat_t = np_to_tensor(mat)
return mat_t
def get_canonical_frame_pose(self):
pos = np.asarray([self.map_size / 2, self.map_size / 2])
rot = np.asarray([0])
return Pose(pos, rot)
def forward(self, maps, map_pose, cam_pose):
"""
Affine transform the map from being centered around map_pose in the canonocial map frame to
being centered around cam_pose in the canonical map frame.
Canonical map frame is the one where the map origin aligns with the environment origin, but the env may
or may not take up the entire map.
:param map: map centered around the drone in map_pose
:param map_pose: the previous drone pose in canonical map frame
:param cam_pose: the new drone pose in canonical map frame
:return:
"""
# TODO: Handle the case where cam_pose is None and return a map in the canonical frame
self.prof.tick("out")
batch_size = maps.size(0)
affine_matrices = torch.zeros([batch_size, 3, 3]).to(maps.device)
self.prof.tick("init")
for i in range(batch_size):
# Convert the pose from airsim coordinates to the image pixel coordinages
# If the pose is None, use the canonical pose (global frame)
if map_pose is not None and map_pose[i] is not None:
map_pose_i = map_pose[i].numpy()
map_pose_img = poses_m_to_px(
map_pose_i, self.map_size,
[self.world_size_px, self.world_size_px],
self.world_size_m)
else:
map_pose_img = self.get_canonical_frame_pose()
if cam_pose is not None and cam_pose[i] is not None:
cam_pose_i = cam_pose[i].numpy()
cam_pose_img = poses_m_to_px(
cam_pose_i, self.map_size,
[self.world_size_px, self.world_size_px],
self.world_size_m)
else:
cam_pose_img = self.get_canonical_frame_pose()
self.prof.tick("pose")
# Get the affine transformation matrix to transform the map to the new camera pose
affine_i = self.get_old_to_new_pose_mat(map_pose_img, cam_pose_img)
affine_matrices[i] = affine_i
self.prof.tick("affine")
# TODO: Do the same with OpenCV and compare results for testing
# Apply the affine transformation on the map
maps_out = self.affine_2d(maps, affine_matrices)
self.prof.tick("affine_sample")
self.prof.loop()
self.prof.print_stats(20)
return maps_out
class LeakyIntegratorMap(MapTransformerBase):
def __init__(self,
source_map_size,
world_size_px,
world_size_m,
lamda=0.2):
super(LeakyIntegratorMap, self).__init__(source_map_size,
world_size_px, world_size_m)
self.map_size = source_map_size
self.world_size_px = world_size_px
self.world_size_m = world_size_m
self.child_transformer = MapTransformerBase(source_map_size,
world_size_px,
world_size_m)
self.lamda = lamda
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.map_memory = MapTransformerBase(source_map_size, world_size_px,
world_size_m)
self.dbg_t = None
self.seq = 0
def init_weights(self):
pass
def reset(self):
super(LeakyIntegratorMap, self).reset()
self.map_memory.reset()
self.child_transformer.reset()
self.seq = 0
def cuda(self, device=None):
MapTransformerBase.cuda(self, device)
self.child_transformer.cuda(device)
self.map_memory.cuda(device)
return self
def dbg_write_extra(self, map, pose):
if DebugWriter().should_write():
map = map[0:1, 0:3]
self.seq += 1
# Initialize a transformer module
if pose is not None:
if self.dbg_t is None:
self.dbg_t = MapTransformerBase(
self.map_size, self.world_size_px,
self.world_size_m).to(map.device)
# Transform the prediction to the global frame and write out to disk.
self.dbg_t.set_map(map, pose)
map_global, _ = self.dbg_t.get_map(None)
else:
map_global = map
DebugWriter().write_img(map_global[0],
"gif_overlaid",
args={
"world_size": self.world_size_px,
"name": "sm"
})
def forward(self, images, coverages, cam_poses, add_mask=None, show=False):
#show="li"
self.prof.tick(".")
batch_size = len(images)
assert add_mask is None or add_mask[
0] is not None, "The first observation in a sequence needs to be used!"
# Step 1: All local maps to global: # TODO: Allow inputing global maps when new projector is ready
self.child_transformer.set_maps(images, cam_poses)
observations_g, _ = self.child_transformer.get_maps(None)
self.child_transformer.set_maps(coverages, cam_poses)
coverages_g, _ = self.child_transformer.get_maps(None)
masked_observations_g_add = self.lamda * observations_g * coverages_g
all_maps_out_g = []
self.prof.tick("maps_to_global")
# TODO: Draw past trajectory on an extra channel of the semantic map
# Step 2: Integrate serially in the global frame
for i in range(batch_size):
# If we don't have a map yet, initialize the map to this observation
if self.map_memory.latest_maps is None:
self.map_memory.set_map(observations_g[i:i + 1], None)
#self.set_map(observations_g[i:i+1], None)
# Allow masking of observations
if add_mask is None or add_mask[i]:
# Get the current global-frame map
map_g, _ = self.map_memory.get_map(None)
#obs_g = observations_g[i:i+1]
cov_g = coverages_g[i:i + 1]
obs_cov_g = masked_observations_g_add[i:i + 1]
# Add the observation into the map using a leaky integrator rule (TODO: Output lamda from model)
new_map_g = (1 - self.lamda
) * map_g + obs_cov_g + self.lamda * map_g * (
1 - cov_g)
# Remember this new map
self.map_memory.set_map(new_map_g, None)
#self.set_map(new_map_g, None)
map_g, _ = self.map_memory.get_map(None)
# Return this map in the camera frame of reference
#map_r, _ = self.get_map(cam_poses[i:i+1])
if show != "":
Presenter().show_image(map_g.data[0, 0:3],
show,
torch=True,
scale=8,
waitkey=50)
all_maps_out_g.append(map_g)
self.prof.tick("integrate")
# Step 3: Convert all maps to local frame
all_maps_g = torch.cat(all_maps_out_g, dim=0)
# Write gifs for debugging
self.dbg_write_extra(all_maps_g, None)
self.child_transformer.set_maps(all_maps_g, None)
maps_r, _ = self.child_transformer.get_maps(cam_poses)
self.set_maps(maps_r, cam_poses)
self.prof.tick("maps_to_local")
self.prof.loop()
self.prof.print_stats(10)
return maps_r, cam_poses
class ModelGSFPV(nn.Module):
def __init__(self,
run_name="",
aux_class_features=False,
aux_grounding_features=False,
aux_lang=False,
recurrence=False):
super(ModelGSFPV, self).__init__()
self.model_name = "gs_fpv" + "_mem" if recurrence else ""
self.run_name = run_name
self.writer = LoggingSummaryWriter(log_dir="runs/" + run_name)
self.params = get_current_parameters()["Model"]
self.aux_weights = get_current_parameters()["AuxWeights"]
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.iter = nn.Parameter(torch.zeros(1), requires_grad=False)
# Auxiliary Objectives
self.use_aux_class_features = aux_class_features
self.use_aux_grounding_features = aux_grounding_features
self.use_aux_lang = aux_lang
self.use_recurrence = recurrence
self.img_to_features_w = FPVToFPVMap(self.params["img_w"],
self.params["img_h"],
self.params["resnet_channels"],
self.params["feature_channels"])
self.lang_filter_gnd = MapLangSemanticFilter(
self.params["emb_size"], self.params["feature_channels"],
self.params["relevance_channels"])
self.lang_filter_goal = MapLangSpatialFilter(
self.params["emb_size"], self.params["relevance_channels"],
self.params["goal_channels"])
self.map_downsample = DownsampleResidual(
self.params["map_to_act_channels"], 2)
self.recurrence = RecurrentEmbedding(
self.params["gs_fpv_feature_map_size"],
self.params["gs_fpv_recurrence_size"])
# Sentence Embedding
self.sentence_embedding = SentenceEmbeddingSimple(
self.params["word_emb_size"], self.params["emb_size"],
self.params["emb_layers"])
in_features_size = self.params[
"gs_fpv_feature_map_size"] + self.params["emb_size"]
if self.use_recurrence:
in_features_size += self.params["gs_fpv_recurrence_size"]
self.features_to_action = DenseMlpBlock2(in_features_size,
self.params["mlp_hidden"], 4)
# Auxiliary Objectives
# --------------------------------------------------------------------------------------------------------------
self.add_auxiliary(
ClassAuxiliary2D("aux_class", None,
self.params["feature_channels"],
self.params["num_landmarks"], "fpv_features",
"lm_pos_fpv", "lm_indices"))
self.add_auxiliary(
ClassAuxiliary2D("aux_ground", None,
self.params["relevance_channels"], 2,
"fpv_features_g", "lm_pos_fpv", "lm_mentioned"))
if self.params["templates"]:
self.add_auxiliary(
ClassAuxiliary("aux_lang_lm", self.params["emb_size"],
self.params["num_landmarks"], 1,
"sentence_embed", "lm_mentioned_tplt"))
self.add_auxiliary(
ClassAuxiliary("aux_lang_side", self.params["emb_size"],
self.params["num_sides"], 1, "sentence_embed",
"side_mentioned_tplt"))
else:
self.add_auxiliary(
ClassAuxiliary("aux_lang_lm_nl", self.params["emb_size"], 2,
self.params["num_landmarks"], "sentence_embed",
"lang_lm_mentioned"))
self.action_loss = ActionLoss()
self.env_id = None
self.prev_instruction = None
self.seq_step = 0
# TODO: Try to hide these in a superclass or something. They take up a lot of space:
def cuda(self, device=None):
ModuleWithAuxiliaries.cuda(self, device)
self.sentence_embedding.cuda(device)
self.img_to_features_w.cuda(device)
self.lang_filter_gnd.cuda(device)
self.lang_filter_goal.cuda(device)
self.action_loss.cuda(device)
self.recurrence.cuda(device)
return self
def get_iter(self):
return int(self.iter.data[0])
def inc_iter(self):
self.iter += 1
def init_weights(self):
self.img_to_features_w.init_weights()
self.lang_filter_gnd.init_weights()
self.lang_filter_goal.init_weights()
self.sentence_embedding.init_weights()
def reset(self):
# TODO: This is error prone. Create a class StatefulModule, iterate submodules and reset all stateful modules
super(ModelGSFPV, self).reset()
self.sentence_embedding.reset()
self.img_to_features_w.reset()
self.recurrence.reset()
self.prev_instruction = None
print("GS_FPV_MEM_RESET")
def setEnvContext(self, context):
print("Set env context to: " + str(context))
self.env_id = context["env_id"]
def start_segment_rollout(self, *args):
self.reset()
def get_action(self, state, instruction):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
#TODO: Absorb corpus within model
:return:
"""
# TODO: Simplify this
self.eval()
images_np_pure = state.image
state_np = state.state
#print("Act: " + debug_untokenize_instruction(instruction))
images_np = standardize_image(images_np_pure)
image_fpv = Variable(none_padded_seq_to_tensor([images_np]))
state = Variable(none_padded_seq_to_tensor([state_np]))
self.prev_instruction = instruction
img_in_t = image_fpv
img_in_t.volatile = True
instr_len = [len(instruction)] if instruction is not None else None
instruction = torch.LongTensor(instruction).unsqueeze(0)
instruction = cuda_var(instruction, self.is_cuda, self.cuda_device)
state.volatile = True
if self.is_cuda:
img_in_t = img_in_t.cuda(self.cuda_device)
state = state.cuda(self.cuda_device)
self.seq_step += 1
action = self(img_in_t, state, instruction, instr_len)
output_action = action.squeeze().data.cpu().numpy()
print("action: ", output_action)
stop_prob = output_action[3]
output_stop = 1 if stop_prob > self.params["stop_threshold"] else 0
output_action[3] = output_stop
return output_action
def deterministic_action(self, action_mean, action_std, stop_prob):
batch_size = action_mean.size(0)
action = Variable(
empty_float_tensor((batch_size, 4), self.is_cuda,
self.cuda_device))
action[:, 0:3] = action_mean[:, 0:3]
action[:, 3] = stop_prob
return action
def sample_action(self, action_mean, action_std, stop_prob):
action = torch.normal(action_mean, action_std)
stop = torch.bernoulli(stop_prob)
return action, stop
# This is called before beginning an execution sequence
def start_sequence(self):
self.seq_step = 0
self.reset()
print("RESETTED!")
return
# TODO: Move this somewhere and standardize
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pose = Pose(cam_pos, cam_rot)
return pose
def forward(self, images, states, instructions, instr_lengths):
"""
:param images: BxCxHxW batch of images (observations)
:param states: BxK batch of drone states
:param instructions: BxM LongTensor where M is the maximum length of any instruction
:param instr_lengths: list of len B of integers, indicating length of each instruction
:param has_obs: list of booleans of length B indicating whether the given element in the sequence has an observation
:param yield_semantic_maps: If true, will not compute actions (full model), but return the semantic maps that
were built along the way in response to the images. This is ugly, but allows code reuse
:return:
"""
cam_poses = self.cam_poses_from_states(states)
self.prof.tick("out")
#print("Trn: " + debug_untokenize_instruction(instructions[0].data[:instr_lengths[0]]))
# Calculate the instruction embedding
if instructions is not None:
# TODO: Take batch of instructions and their lengths, return batch of embeddings. Store the last one as internal state
sent_embeddings = self.sentence_embedding(instructions,
instr_lengths)
self.keep_inputs("sentence_embed", sent_embeddings)
else:
sent_embeddings = self.sentence_embedding.get()
self.prof.tick("embed")
seq_size = len(images)
# Extract and project features onto the egocentric frame for each image
fpv_features = self.img_to_features_w(images,
cam_poses,
sent_embeddings,
self,
show="")
self.keep_inputs("fpv_features", fpv_features)
self.prof.tick("img_to_map_frame")
self.lang_filter_gnd.precompute_conv_weights(sent_embeddings)
self.lang_filter_goal.precompute_conv_weights(sent_embeddings)
gnd_features = self.lang_filter_gnd(fpv_features)
goal_features = self.lang_filter_goal(gnd_features)
self.keep_inputs("fpv_features_g", gnd_features)
visual_features = torch.cat([gnd_features, goal_features], dim=1)
lstm_in_features = visual_features.view([seq_size, 1, -1])
catlist = [lstm_in_features.view([seq_size, -1]), sent_embeddings]
if self.use_recurrence:
memory_features = self.recurrence(lstm_in_features)
catlist.append(memory_features[:, 0, :])
action_features = torch.cat(catlist, dim=1)
# Output the final action given the processed map
action_pred = self.features_to_action(action_features)
action_pred[:, 3] = torch.sigmoid(action_pred[:, 3])
out_action = self.deterministic_action(action_pred[:, 0:3], None,
action_pred[:, 3])
self.prof.tick("map_to_action")
return out_action
def maybe_cuda(self, tensor):
if self.is_cuda:
return tensor.cuda()
else:
return tensor
def cuda_var(self, tensor):
return cuda_var(tensor, self.is_cuda, self.cuda_device)
# Forward pass for training (with batch optimizations
def sup_loss_on_batch(self, batch, eval):
self.prof.tick("out")
action_loss_total = Variable(
empty_float_tensor([1], self.is_cuda, self.cuda_device))
if batch is None:
print("Skipping None Batch")
return action_loss_total
images = self.maybe_cuda(batch["images"])
instructions = self.maybe_cuda(batch["instr"])
instr_lengths = batch["instr_len"]
states = self.maybe_cuda(batch["states"])
actions = self.maybe_cuda(batch["actions"])
# Auxiliary labels
lm_pos_fpv = batch["lm_pos_fpv"]
lm_indices = batch["lm_indices"]
lm_mentioned = batch["lm_mentioned"]
lang_lm_mentioned = batch["lang_lm_mentioned"]
templates = get_current_parameters()["Environment"]["Templates"]
if templates:
lm_mentioned_tplt = batch["lm_mentioned_tplt"]
side_mentioned_tplt = batch["side_mentioned_tplt"]
# stops = self.maybe_cuda(batch["stops"])
masks = self.maybe_cuda(batch["masks"])
metadata = batch["md"]
seq_len = images.size(1)
batch_size = images.size(0)
count = 0
correct_goal_count = 0
goal_count = 0
# Loop thru batch
for b in range(batch_size):
seg_idx = -1
self.reset()
self.prof.tick("out")
b_seq_len = len_until_nones(metadata[b])
# TODO: Generalize this
# Slice the data according to the sequence length
b_metadata = metadata[b][:b_seq_len]
b_images = images[b][:b_seq_len]
b_instructions = instructions[b][:b_seq_len]
b_instr_len = instr_lengths[b][:b_seq_len]
b_states = states[b][:b_seq_len]
b_actions = actions[b][:b_seq_len]
b_lm_pos_fpv = lm_pos_fpv[b][:b_seq_len]
b_lm_indices = lm_indices[b][:b_seq_len]
b_lm_mentioned = lm_mentioned[b][:b_seq_len]
b_lm_pos_fpv = [
self.cuda_var(
(s / RESNET_FACTOR).long()) if s is not None else None
for s in b_lm_pos_fpv
]
b_lm_indices = [
self.cuda_var(s) if s is not None else None
for s in b_lm_indices
]
b_lm_mentioned = [
self.cuda_var(s) if s is not None else None
for s in b_lm_mentioned
]
# TODO: Figure out how to keep these properly. Perhaps as a whole batch is best
# TODO: Introduce a key-value store (encapsulate instead of inherit)
self.keep_inputs("lm_pos_fpv", b_lm_pos_fpv)
self.keep_inputs("lm_indices", b_lm_indices)
self.keep_inputs("lm_mentioned", b_lm_mentioned)
# TODO: Abstract all of these if-elses in a modular way once we know which ones are necessary
if templates:
b_lm_mentioned_tplt = lm_mentioned_tplt[b][:b_seq_len]
b_side_mentioned_tplt = side_mentioned_tplt[b][:b_seq_len]
b_side_mentioned_tplt = self.cuda_var(b_side_mentioned_tplt)
b_lm_mentioned_tplt = self.cuda_var(b_lm_mentioned_tplt)
self.keep_inputs("lm_mentioned_tplt", b_lm_mentioned_tplt)
self.keep_inputs("side_mentioned_tplt", b_side_mentioned_tplt)
else:
b_lang_lm_mentioned = self.cuda_var(
lang_lm_mentioned[b][:b_seq_len])
self.keep_inputs("lang_lm_mentioned", b_lang_lm_mentioned)
# ----------------------------------------------------------------------------
self.prof.tick("inputs")
actions = self(b_images, b_states, b_instructions, b_instr_len)
action_losses, _ = self.action_loss(b_actions,
actions,
batchreduce=False)
self.prof.tick("call")
action_losses = self.action_loss.batch_reduce_loss(action_losses)
action_loss = self.action_loss.reduce_loss(action_losses)
action_loss_total = action_loss
count += b_seq_len
self.prof.tick("loss")
action_loss_avg = action_loss_total / (count + 1e-9)
self.prof.tick("out")
# Doing this in the end (outside of se
aux_losses = self.calculate_aux_loss(reduce_average=True)
aux_loss = self.combine_aux_losses(aux_losses, self.aux_weights)
prefix = self.model_name + ("/eval" if eval else "/train")
self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.writer.add_dict(prefix, aux_losses, self.get_iter())
self.writer.add_scalar(prefix + "/action_loss",
action_loss_avg.data.cpu()[0], self.get_iter())
self.prof.tick("auxiliaries")
total_loss = action_loss_avg + aux_loss
self.inc_iter()
self.prof.tick("summaries")
self.prof.loop()
self.prof.print_stats(1)
return total_loss
def get_dataset(self,
data=None,
envs=None,
dataset_names=None,
dataset_prefix=None,
eval=False):
# TODO: Maybe use eval here
#if self.fpv:
data_sources = []
data_sources.append(aup.PROVIDER_LM_POS_DATA)
data_sources.append(aup.PROVIDER_LANDMARKS_MENTIONED)
templates = get_current_parameters()["Environment"]["Templates"]
if templates:
data_sources.append(aup.PROVIDER_LANG_TEMPLATE)
return SegmentDataset(data=data,
env_list=envs,
dataset_names=dataset_names,
dataset_prefix=dataset_prefix,
aux_provider_names=data_sources,
segment_level=True)
def get_action(self, state, instruction, sample=False, rl_rollout=False):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
:param sample: (Only applies if self.rl): If true, sample action from action distribution. If False, take most likely action.
#TODO: Absorb corpus within model
:return:
"""
self.eval()
ACTPROF = False
actprof = SimpleProfiler(print=ACTPROF, torch_sync=ACTPROF)
states, images_fpv = self.states_to_torch(state)
first_step = True
if instruction == self.prev_instruction:
first_step = False
if first_step:
self.reset()
self.start_poses = self.cam_poses_from_states(states)
if self.rviz is not None:
dbg_instr = "\n".join(Presenter().split_lines(
debug_untokenize_instruction(instruction), maxchars=45))
self.rviz.publish_instruction_text("instruction", dbg_instr)
self.prev_instruction = instruction
self.seq_step += 1
instr_len = [len(instruction)] if instruction is not None else None
instructions = torch.LongTensor(instruction).unsqueeze(0)
plan_now = self.seq_step % self.s1_params[
"plan_every_n_steps"] == 0 or first_step
# Run stage1 visitation prediction
# TODO: There's a bug here where we ignore images between planning timesteps. That's why must plan every timestep
if plan_now or True:
device = next(self.parameters()).device
images_fpv = images_fpv.to(device)
states = states.to(device)
instructions = instructions.to(device)
self.start_poses = self.start_poses.to(device)
actprof.tick("start")
#print("Planning for: " + debug_untokenize_instruction(list(instructions[0].detach().cpu().numpy())))
self.log_v_dist_w, v_dist_w_poses, self.log_goal_oob_score, rl_outputs = self.stage1_visitation_prediction(
images_fpv,
states,
instructions,
instr_len,
plan=[True],
firstseg=[first_step],
noisy_start_poses=self.start_poses,
start_poses=self.start_poses,
select_only=True,
rl=True)
actprof.tick("stage1")
self.map_coverage_w = rl_outputs["map_coverage_w"]
self.map_uncoverage_w = rl_outputs["map_uncoverage_w"]
self.v_dist_w, self.goal_oob_prob_w = self.visitation_softmax(
self.log_v_dist_w, self.log_goal_oob_score)
if self.rviz:
v_dist_w_np = self.v_dist_w[0].data.cpu().numpy().transpose(
1, 2, 0)
# expand to 0-1 range
v_dist_w_np[:, :, 0] /= (np.max(v_dist_w_np[:, :, 0]) + 1e-10)
v_dist_w_np[:, :, 1] /= (np.max(v_dist_w_np[:, :, 1]) + 1e-10)
self.rviz.publish_map("visitation_dist", v_dist_w_np,
self.s1_params["world_size_m"])
# Transform to robot reference frame
cam_poses = self.cam_poses_from_states(states)
# Log-distributions CANNOT be transformed - the transformer fills empty space with zeroes, which makes sense for
# probability distributions, but makes no sense for likelihood scores
map_coverage_r, _ = self.map_transformer_w_to_r(
self.map_coverage_w, None, cam_poses)
map_uncoverage_r, _ = self.map_transformer_w_to_r(
self.map_uncoverage_w, None, cam_poses)
v_dist_r, r_poses = self.map_transformer_w_to_r(
self.v_dist_w, None, cam_poses)
# Run stage2 action generation
if self.rl:
actprof.tick("pipes")
# If RL, stage 2 outputs distributions over actions (following torch.distributions API)
xvel_dist, yawrate_dist, stop_dist, value = self.stage2_action_generation(
v_dist_r, map_uncoverage_r, eval=True)
actprof.tick("stage2")
if sample:
xvel, yawrate, stop = self.stage2_action_generation.sample_action(
xvel_dist, yawrate_dist, stop_dist)
else:
xvel, yawrate, stop = self.stage2_action_generation.mode_action(
xvel_dist, yawrate_dist, stop_dist)
actprof.tick("sample")
xvel_logprob, yawrate_logprob, stop_logprob = self.stage2_action_generation.action_logprob(
xvel_dist, yawrate_dist, stop_dist, xvel, yawrate, stop)
xvel = xvel.detach().cpu().numpy()
yawrate = yawrate.detach().cpu().numpy()
stop = stop.detach().cpu().numpy()
xvel_logprob = xvel_logprob.detach()
yawrate_logprob = yawrate_logprob.detach()
stop_logprob = stop_logprob.detach()
value = value.detach() #.cpu().numpy()
# Add an empty column for sideways velocity
act = np.concatenate([xvel, np.zeros(xvel.shape), yawrate, stop])
# This will be needed to compute rollout statistics later on
#v_dist_w = self.visitation_softmax(self.log_v_dist_w, self.log_goal_oob_score)
# Keep all the info we will need later for A2C / PPO training
# TODO: We assume independence between velocity and stop distributions. Not true, but what ya gonna do?
rl_data = {
"policy_input": v_dist_r[0].detach(),
"v_dist_w": self.v_dist_w[0].detach(),
"policy_input_b": map_uncoverage_r[0].detach(),
"value_pred": value[0],
"xvel": xvel,
"yawrate": yawrate,
"stop": stop,
"xvel_logprob": xvel_logprob,
"yawrate_logprob": yawrate_logprob,
"stop_logprob": stop_logprob,
"action_logprob": xvel_logprob + stop_logprob + yawrate_logprob
}
actprof.tick("end")
actprof.loop()
actprof.print_stats(1)
if rl_rollout:
return act, rl_data
else:
return act
else:
action = self.stage2_action_generation(v_dist_r,
firstseg=[first_step],
eval=True)
output_action = action.squeeze().data.cpu().numpy()
stop_prob = output_action[3]
output_stop = 1 if stop_prob > self.s2_params[
"stop_threshold"] else 0
output_action[3] = output_stop
return output_action
class PVN_Wrapper_Bidomain(nn.Module):
def __init__(self,
run_name="",
model_instance_name="only",
oracle_stage1=False):
super(PVN_Wrapper_Bidomain, self).__init__()
self.instance_name = model_instance_name
self.s1_params = P.get_current_parameters()["ModelPVN"]["Stage1"]
self.s2_params = P.get_current_parameters()["ModelPVN"]["Stage2"]
self.wrapper_params = P.get_current_parameters()["PVNWrapper"]
self.oracle_stage1 = oracle_stage1
self.real_drone = P.get_current_parameters()["Setup"]["real_drone"]
self.rviz = None
if self.real_drone and P.get_current_parameters()["Setup"].get(
"use_rviz", False):
self.rviz = RvizInterface(
base_name="/pvn/",
map_topics=["semantic_map", "visitation_dist"],
markerarray_topics=["instruction"])
self.stage1_visitation_prediction = PVN_Stage1_Bidomain(
run_name, model_instance_name)
self.keyboard = self.wrapper_params.get("keyboard")
self.rl = self.wrapper_params[
"learning_mode"] == "reinforcement_learning"
if self.keyboard:
self.stage2_action_generation = PVN_Stage2_Keyboard(
run_name, model_instance_name)
else: # self.wrapper_params["pvn_version"] == "v2":
# Wrap Stage 1 to hide it from PyTorch
self.stage2_action_generation = PVN_Stage2_ActorCritic(
run_name, model_instance_name)
#else:
# self.stage2_action_generation = PVN_Stage2_Bidomain(run_name, model_instance_name)
self.load_models_from_file()
#self.spatialsoftmax = SpatialSoftmax2d()
self.visitation_softmax = VisitationSoftmax()
self.map_transformer_w_to_r = MapTransformer(
source_map_size=self.s1_params["global_map_size"],
dest_map_size=self.s1_params["local_map_size"],
world_size_m=self.s1_params["world_size_m"],
world_size_px=self.s1_params["world_size_px"])
self.visitation_reward = VisitationReward(
world_size_px=self.s1_params["world_size_px"],
world_size_m=self.s1_params["world_size_m"])
self.visitation_and_exploration_reward = VisitationAndExplorationReward(
world_size_px=self.s1_params["world_size_px"],
world_size_m=self.s1_params["world_size_m"])
self.wd_visitation_and_exploration_reward = WDVisitationAndExplorationReward(
world_size_px=self.s1_params["world_size_px"],
world_size_m=self.s1_params["world_size_m"],
params=self.wrapper_params["wd_reward"])
self.map_coverage_reward = MapCoverageReward()
self.action_oob_reward = ActionOutOfBoundsReward()
self.map_boundary = self.make_map_boundary()
self.prev_instruction = None
self.start_cam_poses = None
self.seq_step = 0
self.log_v_dist_w = None
self.v_dist_w = None
self.map_uncoverage_w = None
self.current_segment = None
self.presenter = Presenter()
self.actprof = SimpleProfiler(print=ACTPROF, torch_sync=ACTPROF)
def make_picklable(self):
self.stage1_visitation_prediction.make_picklable()
self.stage2_action_generation.make_picklable()
def load_models_from_file(self, stage1_file=None, stage2_file=None):
if self.real_drone:
stage1_file = stage1_file or self.wrapper_params.get(
"stage1_file_real")
else:
stage1_file = stage1_file or self.wrapper_params.get(
"stage1_file_sim")
stage2_file = stage2_file or self.wrapper_params.get("stage2_file")
if stage1_file:
print("PVNWrapper: Loading Stage 1")
try:
load_pytorch_model(self.stage1_visitation_prediction,
stage1_file)
except RuntimeError as e:
print(f"Couldn't load Stage1 without namespace: {e}")
load_pytorch_model(self.stage1_visitation_prediction,
stage1_file,
namespace="stage1_visitation_prediction")
if stage2_file:
print("PVNWrapper: Loading Stage 2")
try:
load_pytorch_model(self.stage2_action_generation, stage2_file)
except RuntimeError as e:
print(f"Couldn't load Stage2 without namespace: {e}")
load_pytorch_model(self.stage2_action_generation,
stage2_file,
namespace="stage2_action_generation")
def parameters(self, recurse=True):
#print("WARNING: RETURNING STAGE 2 PARAMS AS WRAPPER PARAMS")
return self.stage2_action_generation.parameters(recurse)
# Policy state is whatever needs to be updated during RL training.
# Right now we only update the stage 2 weights.
def get_policy_state(self):
return self.stage2_action_generation.state_dict()
def set_policy_state(self, state):
self.stage2_action_generation.load_state_dict(state)
def set_static_state(self, state):
self.stage1_visitation_prediction.load_state_dict(state)
def get_static_state(self):
return self.stage1_visitation_prediction.state_dict()
def init_weights(self):
self.stage1_visitation_prediction.init_weights()
self.stage2_action_generation.init_weights()
self.load_models_from_file()
def reset(self):
self.stage1_visitation_prediction.reset()
self.stage2_action_generation.reset()
self.prev_instruction = None
self.start_cam_poses = None
self.log_v_dist_w = None
self.v_dist_w = None
self.map_uncoverage_w = None
self.map_coverage_reward.reset()
self.visitation_reward.reset()
self.wd_visitation_and_exploration_reward.reset()
def start_sequence(self):
self.seq_step = 0
self.reset()
def start_segment_rollout(self, env_id, set_idx, seg_idx):
self.current_segment = [env_id, set_idx, seg_idx]
self.start_sequence()
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pose = Pose(cam_pos, cam_rot)
return pose
def drone_poses_from_states(self, states):
drn_pos = states[:, 0:3]
drn_rot_euler = states[:, 3:6].detach().cpu().numpy()
quats = [euler2quat(a[0], a[1], a[2]) for a in drn_rot_euler]
quats = torch.from_numpy(np.asarray(quats)).to(drn_pos.device)
pose = Pose(drn_pos, quats)
return pose
def poses_from_states(self, states):
USE_DRONE_POSES = True
if USE_DRONE_POSES:
return self.drone_poses_from_states(states)
else:
return self.cam_poses_from_states(states)
def make_map_boundary(self):
mapsize = self.s1_params["global_map_size"]
boundary = torch.zeros([1, 1, mapsize, mapsize])
boundary[:, :, 0, :] = 1.0
boundary[:, :, mapsize - 1, :] = 1.0
boundary[:, :, :, 0] = 1.0
boundary[:, :, :, mapsize - 1] = 1.0
return boundary
def calc_intrinsic_rewards(self, next_state, action, done, first):
if self.v_dist_w is None or self.map_uncoverage_w is None:
raise ValueError(
"Computing intrinsic reward prior to any rollouts!")
else:
states_np = next_state.state[np.newaxis, :]
states = torch.from_numpy(states_np)
cam_pos = states[:, 0:12]
if self.s1_params.get(
"clip_observability") and self.wrapper_params.get(
"wasserstein_reward"):
visitation_reward, stop_reward, exploration_reward, stop_oob_reward, stop_p_reward = self.wd_visitation_and_exploration_reward(
self.v_dist_w, cam_pos, action, done, first)
elif self.s1_params.get("clip_observability"):
visitation_reward, stop_reward, exploration_reward = self.visitation_and_exploration_reward(
self.v_dist_w, self.goal_oob_prob_w, cam_pos, action, done)
else:
visitation_reward, stop_reward = self.visitation_reward(
self.v_dist_w, cam_pos, action, done)
exploration_reward = 0.0
if self.wrapper_params.get("explore_reward_only"):
visitation_reward = 0.0
stop_reward = 0.0
negative_per_step_reward = -self.wrapper_params["wd_reward"][
"step_alpha"]
action_oob_reward = self.action_oob_reward.get_reward(action)
return {
"visitation_reward": visitation_reward,
"stop_reward": stop_reward,
"exploration_reward": exploration_reward,
"negative_per_step_reward": negative_per_step_reward,
"action_oob_reward": action_oob_reward,
"stop_oob_reward": stop_oob_reward,
"stop_p_reward": stop_p_reward
}
def states_to_torch(self, state):
states_np = state.state[np.newaxis, :]
images_np = state.image[np.newaxis, :]
images_np = standardize_images(images_np, out_np=True)
images_fpv = torch.from_numpy(images_np).float()
states = torch.from_numpy(states_np)
return states, images_fpv
def build_map_structured_input(self, map_uncoverage_w, cam_poses):
map_uncoverage_r, _ = self.map_transformer_w_to_r(
map_uncoverage_w, None, cam_poses)
if self.s2_params["use_map_boundary"]:
# Change device if necessary
self.map_boundary = self.map_boundary.to(map_uncoverage_r.device)
batch_size = map_uncoverage_w.shape[0]
map_boundary_r, _ = self.map_transformer_w_to_r(
self.map_boundary.repeat([batch_size, 1, 1, 1]), None,
cam_poses)
structured_map_info_r = torch.cat(
[map_uncoverage_r, map_boundary_r], dim=1)
else:
structured_map_info_r = map_uncoverage_r
batch_size = map_uncoverage_w.shape[0]
struct_info_w = torch.cat([
map_uncoverage_w,
self.map_boundary.repeat([batch_size, 1, 1, 1])
])
return structured_map_info_r, struct_info_w
def make_viz_dict_from_stage1_internals(self):
F_C = self.stage1_visitation_prediction.tensor_store.get_latest_input(
"fpv_features")
F_W = self.stage1_visitation_prediction.tensor_store.get_latest_input(
"F_w")
M_W = self.stage1_visitation_prediction.tensor_store.get_latest_input(
"M_w")
SM_W = self.stage1_visitation_prediction.tensor_store.get_latest_input(
"SM_w")
S_W = self.stage1_visitation_prediction.tensor_store.get_latest_input(
"S_W_select")
R_W = self.stage1_visitation_prediction.tensor_store.get_latest_input(
"R_W_select")
return {
"F_C": F_C.detach().cpu().numpy(),
"F_W": F_W.detach().cpu().numpy(),
"M_W": M_W.detach().cpu().numpy(),
"S_W": S_W.detach().cpu().numpy(),
"R_W": R_W.detach().cpu().numpy(),
"SM_W": SM_W.detach().cpu().numpy()
}
def get_action(self, state, instruction, sample=False, rl_rollout=False):
"""
Given a DroneState (from PomdpInterface) and instruction, produce a numpy 4D action (x, y, theta, pstop)
:param state: DroneState object with the raw image from the simulator
:param instruction: Tokenized instruction given the corpus
:param sample: (Only applies if self.rl): If true, sample action from action distribution. If False, take most likely action.
:return:
"""
self.eval()
states, images_fpv = self.states_to_torch(state)
first_step = True
if instruction == self.prev_instruction:
first_step = False
if first_step:
self.reset()
self.start_cam_poses = self.cam_poses_from_states(states)
if self.rviz is not None:
dbg_instr = "\n".join(Presenter().split_lines(
debug_untokenize_instruction(instruction), maxchars=45))
self.rviz.publish_instruction_text("instruction", dbg_instr)
self.prev_instruction = instruction
self.seq_step += 1
instr_len = [len(instruction)] if instruction is not None else None
instructions = torch.LongTensor(instruction).unsqueeze(0)
plan_now = self.seq_step % self.s1_params[
"plan_every_n_steps"] == 0 or first_step
# Run stage1 visitation prediction
# TODO: There's a bug here where we ignore images between planning timesteps. That's why must plan every timestep
if plan_now or True:
device = next(self.parameters()).device
images_fpv = images_fpv.to(device)
states = states.to(device)
instructions = instructions.to(device)
self.start_cam_poses = self.start_cam_poses.cuda(device)
self.actprof.tick("start")
#print("Planning for: " + debug_untokenize_instruction(list(instructions[0].detach().cpu().numpy())))
self.log_v_dist_w, v_dist_w_poses, rl_outputs = self.stage1_visitation_prediction(
images_fpv,
states,
instructions,
instr_len,
plan=[True],
firstseg=[first_step],
noisy_start_poses=self.start_cam_poses,
start_poses=self.start_cam_poses,
select_only=True,
rl=True,
noshow=True)
self.actprof.tick("stage1")
self.map_uncoverage_w = rl_outputs["map_uncoverage_w"]
self.v_dist_w = self.log_v_dist_w.softmax()
# TODO: Fix
if self.rviz: #a.k.a False
v_dist_w_np = self.v_dist_w.inner_distribution[0].data.cpu(
).numpy().transpose(1, 2, 0)
# expand to 0-1 range
v_dist_w_np[:, :, 0] /= (np.max(v_dist_w_np[:, :, 0]) + 1e-10)
v_dist_w_np[:, :, 1] /= (np.max(v_dist_w_np[:, :, 1]) + 1e-10)
self.rviz.publish_map("visitation_dist", v_dist_w_np,
self.s1_params["world_size_m"])
# Transform to robot reference frame
drn_poses = self.poses_from_states(states)
# Log-distributions CANNOT be transformed - the transformer fills empty space with zeroes, which makes sense for
# probability distributions, but makes no sense for likelihood scores
x = self.v_dist_w.inner_distribution
xr, r_poses = self.map_transformer_w_to_r(x, None, drn_poses)
v_dist_r = Partial2DDistribution(xr, self.v_dist_w.outer_prob_mass)
structured_map_info_r, map_info_w = self.build_map_structured_input(
self.map_uncoverage_w, drn_poses)
if self.oracle_stage1:
# Ground truth visitation distributions (in start and global frames)
assert self.current_segment is not None, "start_segment_rollout must be called before rolling out model that uses ground truth"
env_id, set_idx, seg_idx = self.current_segment
v_dist_w_gt = aup.resolve_and_get_ground_truth_static_global(
env_id, set_idx, seg_idx, self.s1_params["global_map_size"],
self.s1_params["world_size_px"]).to(images_fpv.device)
v_dist_r_ground_truth_select, poses_r = self.map_transformer_w_to_r(
v_dist_w_gt, None, drn_poses)
map_uncoverage_r = structured_map_info_r[:, 0, :, :]
# PVNv2: Mask the visitation distributions according to observability thus far:
if self.s1_params["clip_observability"]:
v_dist_r_gt_masked = Partial2DDistribution.from_distribution_and_mask(
v_dist_r_ground_truth_select, 1 - map_uncoverage_r)
# PVNv1: Have P(oob)=0, and use unmasked ground-truth visitation distributions
else:
v_dist_r_gt_masked = Partial2DDistribution(
v_dist_r_ground_truth_select,
torch.zeros_like(v_dist_r_ground_truth_select[:, :, 0, 0]))
v_dist_r = v_dist_r_gt_masked
if False:
Presenter().show_image(structured_map_info_r,
"map_struct",
scale=4,
waitkey=1)
v_dist_r.show("v_dist_r", scale=4, waitkey=1)
# Run stage2 action generation
if self.rl:
self.actprof.tick("pipes")
# If RL, stage 2 outputs distributions over actions (following torch.distributions API)
xvel_dist, yawrate_dist, stop_dist, value = self.stage2_action_generation(
v_dist_r, structured_map_info_r, eval=True)
self.actprof.tick("stage2")
if sample:
xvel, yawrate, stop = self.stage2_action_generation.sample_action(
xvel_dist, yawrate_dist, stop_dist)
else:
xvel, yawrate, stop = self.stage2_action_generation.mode_action(
xvel_dist, yawrate_dist, stop_dist)
self.actprof.tick("sample")
xvel_logprob, yawrate_logprob, stop_logprob = self.stage2_action_generation.action_logprob(
xvel_dist, yawrate_dist, stop_dist, xvel, yawrate, stop)
xvel = xvel.detach().cpu().numpy()
yawrate = yawrate.detach().cpu().numpy()
stop = stop.detach().cpu().numpy()
xvel_logprob = xvel_logprob.detach()
yawrate_logprob = yawrate_logprob.detach()
stop_logprob = stop_logprob.detach()
if value is not None:
value = value.detach() #.cpu().numpy()
if self.s2_params.get("use_stop_threshold"):
stop_prob = stop_dist.probs.detach().item()
stop = 1 if stop_prob > self.s2_params.get(
"stop_threshold") else 0
stop = np.ones_like(xvel) * stop
print("stop prob: ", stop_prob, " -> ", stop)
# Add an empty column for sideways velocity
act = np.concatenate([xvel, np.zeros(xvel.shape), yawrate, stop])
# This will be needed to compute rollout statistics later on
#v_dist_w = self.visitation_softmax(self.log_v_dist_w, self.log_goal_oob_score)
# Keep all the info we will need later for A2C / PPO training
# TODO: We assume independence between velocity and stop distributions. Not true, but what ya gonna do?
rl_data = {
"policy_input": v_dist_r.detach(),
"policy_input_b": structured_map_info_r[0].detach(),
"v_dist_w": self.v_dist_w.inner_distribution[0].detach(),
"value_pred": value[0] if value else None,
"xvel": xvel,
"yawrate": yawrate,
"stop": stop,
"xvel_logprob": xvel_logprob,
"yawrate_logprob": yawrate_logprob,
"stop_logprob": stop_logprob,
"action_logprob": xvel_logprob + stop_logprob + yawrate_logprob
}
self.actprof.tick("end")
self.actprof.loop()
self.actprof.print_stats(1)
if rl_rollout:
return act, rl_data
else:
viz_data = self.make_viz_dict_from_stage1_internals()
viz_data["v_dist_r_inner"] = v_dist_r.inner_distribution[
0].detach().cpu().numpy()
viz_data["v_dist_r_outer"] = v_dist_r.outer_prob_mass[
0].detach().cpu().numpy()
viz_data["v_dist_w_inner"] = self.v_dist_w.inner_distribution[
0].detach().cpu().numpy()
viz_data["v_dist_w_outer"] = self.v_dist_w.outer_prob_mass[
0].detach().cpu().numpy()
viz_data["map_struct"] = structured_map_info_r[0].detach().cpu(
).numpy()
viz_data["BM_W"] = map_info_w[0].detach().cpu().numpy()
return act, viz_data
else:
raise NotImplemented(
"Non-RL learning mode no longer support it - just use RL learning mode as it is more general!"
)
def unbatch(self, batch):
# Inputs
states = self.stage2_action_generation.cuda_var(batch["states"][0])
seq_len = len(states)
firstseg_mask = batch["firstseg_mask"][
0] # True for every timestep that is a new instruction segment
plan_mask = batch["plan_mask"][
0] # True for every timestep that we do visitation prediction
actions = self.stage2_action_generation.cuda_var(batch["actions"][0])
actions_select = self.stage2_action_generation.batch_select.one(
actions, plan_mask, actions.device)
# Ground truth visitation distributions (in start and global frames)
v_dist_w_ground_truth_select = self.stage2_action_generation.cuda_var(
batch["traj_ground_truth"][0])
poses = self.poses_from_states(states)
poses_select = self.stage2_action_generation.batch_select.one(
poses, plan_mask, actions.device)
v_dist_r_ground_truth_select, poses_r = self.map_transformer_w_to_r(
v_dist_w_ground_truth_select, None, poses_select)
#Presenter().show_image(v_dist_w_ground_truth_select.detach().cpu()[0,0], "v_dist_w_ground_truth_select", waitkey=1, scale=4)
#Presenter().show_image(v_dist_r_ground_truth_select.detach().cpu()[0,0], "v_dist_r_ground_truth_select", waitkey=1, scale=4)
return states, actions_select, v_dist_r_ground_truth_select, poses_select, plan_mask, firstseg_mask
# Forward pass for training (with batch optimizations
def sup_loss_on_batch(self, batch, eval, halfway=False):
self.reset()
states, actions_gt_select, v_dist_r_ground_truth_select, poses_select, plan_mask, firstseg_mask = self.unbatch(
batch)
images, states, instructions, instr_len, plan_mask, firstseg_mask, \
start_poses, noisy_start_poses, metadata = self.stage1_visitation_prediction.unbatch(batch, halfway=halfway)
batch_size = images.shape[0]
# ----------------------------------------------------------------------------
with torch.no_grad():
map_uncoverage_w = self.stage1_visitation_prediction(
images,
states,
instructions,
instr_len,
plan=plan_mask,
firstseg=firstseg_mask,
noisy_start_poses=start_poses,
start_poses=start_poses,
select_only=True,
halfway="observability")
# ----------------------------------------------------------------------------
poses = self.poses_from_states(states)
structured_map_info_r = self.build_map_structured_input(
map_uncoverage_w, poses)
map_uncoverage_r = structured_map_info_r[:, 0, :, :]
v_dist_r_gt_masked = Partial2DDistribution.from_distribution_and_mask(
v_dist_r_ground_truth_select, 1 - map_uncoverage_r)
if False:
for i in range(batch_size):
v_dist_r_gt_masked.show("v_dist_r_masked",
scale=4,
waitkey=True,
idx=i)
xvel_dist, yawrate_dist, stop_dist, value_pred = self.stage2_action_generation(
v_dist_r_gt_masked, structured_map_info_r, eval=False)
xvel_logprob = xvel_dist.log_probs(actions_gt_select[:, 0])
yawrate_logprob = yawrate_dist.log_probs(actions_gt_select[:, 2])
# TODO: Figure out why this doesn't already sum
stop_logprob = stop_dist.log_probs(actions_gt_select[:, 3]).sum()
total_logprob = xvel_logprob + yawrate_logprob + stop_logprob
avg_logprob = total_logprob / batch_size
avg_xvel_logprob = xvel_logprob / batch_size
avg_yawrate_logprob = yawrate_logprob / batch_size
avg_stop_logprob = stop_logprob / batch_size
squared_xvel_dst = ((xvel_dist.mean -
actions_gt_select[:, 0])**2).mean()
squared_yawrate_dst = ((yawrate_dist.mean -
actions_gt_select[:, 2])**2).mean()
#action_loss = -avg_stop_logprob + squared_xvel_dst + squared_yawrate_dst
action_loss = -avg_stop_logprob + squared_xvel_dst + squared_yawrate_dst
prefix = self.stage2_action_generation.model_name + ("/eval" if eval
else "/train")
self.stage2_action_generation.writer.add_scalar(
prefix + "/action_loss",
action_loss.data.cpu().item(),
self.stage2_action_generation.get_iter())
self.stage2_action_generation.writer.add_scalar(
prefix + "/avg_logprob",
avg_logprob.data.cpu().item(),
self.stage2_action_generation.get_iter())
self.stage2_action_generation.writer.add_scalar(
prefix + "/avg_xvel_logprob",
avg_xvel_logprob.data.cpu().item(),
self.stage2_action_generation.get_iter())
self.stage2_action_generation.writer.add_scalar(
prefix + "/avg_yawrate_logprob",
avg_yawrate_logprob.data.cpu().item(),
self.stage2_action_generation.get_iter())
self.stage2_action_generation.writer.add_scalar(
prefix + "/avg_stop_logprob",
avg_stop_logprob.data.cpu().item(),
self.stage2_action_generation.get_iter())
self.stage2_action_generation.writer.add_scalar(
prefix + "/squared_xvel_dst",
squared_xvel_dst.data.cpu().item(),
self.stage2_action_generation.get_iter())
self.stage2_action_generation.writer.add_scalar(
prefix + "/squared_yawrate_dst",
squared_yawrate_dst.data.cpu().item(),
self.stage2_action_generation.get_iter())
#self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.stage2_action_generation.inc_iter()
return action_loss, None
def get_dataset(self,
data=None,
envs=None,
domain=None,
dataset_names=None,
dataset_prefix=None,
eval=False):
return self.stage1_visitation_prediction.get_dataset(
data=data,
envs=envs,
domain=domain,
dataset_names=dataset_names,
dataset_prefix=dataset_prefix,
eval=eval)
class PVN_Stage2_Bidomain(nn.Module):
def __init__(self, run_name="", model_instance_name="only"):
super(PVN_Stage2_Bidomain, self).__init__()
self.model_name = "pvn_stage2"
self.run_name = run_name
self.instance_name = model_instance_name
self.writer = LoggingSummaryWriter(log_dir=f"{get_logging_dir()}/runs/{run_name}/{self.instance_name}")
self.params_s1 = get_current_parameters()["ModelPVN"]["Stage1"]
self.params = get_current_parameters()["ModelPVN"]["Stage2"]
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
self.iter = nn.Parameter(torch.zeros(1), requires_grad=False)
self.tensor_store = KeyTensorStore()
# Common
# --------------------------------------------------------------------------------------------------------------
self.map_transform_w_to_r = MapTransformer(source_map_size=self.params_s1["global_map_size"],
dest_map_size=self.params_s1["local_map_size"],
world_size_px=self.params_s1["world_size_px"],
world_size_m=self.params_s1["world_size_m"])
self.map_to_action = CroppedMapToActionTriplet(
map_channels=self.params["map_to_act_channels"],
map_size=self.params_s1["local_map_size"],
manual=False,
path_only=self.params["action_in_path_only"],
recurrence=self.params["action_recurrence"])
self.batch_select = MapBatchSelect()
self.action_loss = ActionLoss()
self.env_id = None
self.seg_idx = None
self.prev_instruction = None
self.seq_step = 0
self.get_act_start_pose = None
self.gt_labels = None
def steal_cross_domain_modules(self, other_self):
self.map_to_action = other_self.map_to_action
def both_domain_parameters(self, other_self):
# This function iterates and yields parameters from this module and the other module, but does not yield
# shared parameters twice.
# Since all the parameters are shared, it's fine to just iterate over this module's parameters
for p in self.parameters():
yield p
return
def make_picklable(self):
self.writer = DummySummaryWriter()
def get_iter(self):
return int(self.iter.data[0])
def inc_iter(self):
self.iter += 1
def init_weights(self):
self.map_to_action.init_weights()
def reset(self):
self.tensor_store.reset()
def setEnvContext(self, context):
print("Set env context to: " + str(context))
self.env_id = context["env_id"]
def start_segment_rollout(self):
import rollout.run_metadata as md
m_size = self.params["local_map_size"]
w_size = self.params["world_size_px"]
self.gt_labels = get_top_down_ground_truth_static_global(
md.ENV_ID, md.START_IDX, md.END_IDX, m_size, m_size, w_size, w_size)
self.seg_idx = md.SEG_IDX
self.gt_labels = self.maybe_cuda(self.gt_labels)
if self.params["clear_history"]:
self.start_sequence()
def cam_poses_from_states(self, states):
cam_pos = states[:, 9:12]
cam_rot = states[:, 12:16]
pose = Pose(cam_pos, cam_rot)
return pose
def forward(self, visit_dist_r, structured_map_info_r, firstseg=None, eval=False):
structured_map_info_r = None # not used in CoRL 2018 model
action_scores = self.map_to_action(visit_dist_r, None, fistseg_mask=firstseg)
self.prof.tick("map_to_action")
xvel_mean = action_scores[:, 0]
xvel_std = F.softplus(action_scores[:, 2])
xvel_dist = FixedNormal(xvel_mean, xvel_std)
yawrate_mean = action_scores[:, 3]
if eval and self.params.get("test_time_amplifier"):
yawrate_mean = yawrate_mean * self.params["test_time_amplifier"]
yawrate_std = F.softplus(action_scores[:, 5])
yawrate_dist = FixedNormal(yawrate_mean, yawrate_std)
# Skew it towards not stopping in the beginning
stop_logits = action_scores[:, 6]
stop_dist = FixedBernoulli(logits=stop_logits)
# TODO: This PVNv1 CoRL 2018 head is incompatible with Actor-critic training for now
value = None
return xvel_dist, yawrate_dist, stop_dist, value
def sample_action(self, xvel_dist, yawrate_dist, stop_dist):
# Sample action from the predicted distributions
xvel_sample = xvel_dist.sample()
yawrate_sample = yawrate_dist.sample()
stop = stop_dist.sample()
return xvel_sample, yawrate_sample, stop
def mode_action(self, xvel_dist, yawrate_dist, stop_dist):
xvel_sample = xvel_dist.mode()
yawrate_sample = yawrate_dist.mode()
stop = stop_dist.mean
return xvel_sample, yawrate_sample, stop
def action_logprob(self, xvel_dist, yawrate_dist, stop_dist, xvel, yawrate, stop):
xvel_logprob = xvel_dist.log_prob(xvel)
yawrate_logprob = yawrate_dist.log_prob(yawrate)
stop_logprob = stop_dist.log_prob(stop)
return xvel_logprob, yawrate_logprob, stop_logprob
def cuda_var(self, tensor):
return tensor.to(next(self.parameters()).device)
def unbatch(self, batch):
# Inputs
states = self.cuda_var(batch["states"][0])
seq_len = len(states)
firstseg_mask = batch["firstseg_mask"][0] # True for every timestep that is a new instruction segment
plan_mask = batch["plan_mask"][0] # True for every timestep that we do visitation prediction
actions = self.cuda_var(batch["actions"][0])
actions_select = self.batch_select.one(actions, plan_mask, actions.device)
# Ground truth visitation distributions (in start and global frames)
v_dist_w_ground_truth_select = self.cuda_var(batch["traj_ground_truth"][0])
cam_poses = self.cam_poses_from_states(states)
cam_poses_select = self.batch_select.one(cam_poses, plan_mask, actions.device)
v_dist_r_ground_truth_select, poses_r = self.map_transform_w_to_r(v_dist_w_ground_truth_select, None, cam_poses_select)
self.tensor_store.keep_inputs("v_dist_w_ground_truth_select", v_dist_w_ground_truth_select)
self.tensor_store.keep_inputs("v_dist_r_ground_truth_select", v_dist_r_ground_truth_select)
Presenter().show_image(v_dist_w_ground_truth_select.detach().cpu()[0,0], "v_dist_w_ground_truth_select", waitkey=1, scale=4)
Presenter().show_image(v_dist_r_ground_truth_select.detach().cpu()[0,0], "v_dist_r_ground_truth_select", waitkey=1, scale=4)
return states, actions_select, v_dist_r_ground_truth_select, cam_poses_select, plan_mask, firstseg_mask
# TODO: This code heavily overlaps with that in ModelPvnWrapperBidomain.
# PVN Wrapper should be used for training Stage 2 and not this
# Forward pass for training Stage 2 only (with batch optimizations)
def sup_loss_on_batch(self, batch, eval, halfway=False):
raise ValueError("This code still works but is deprecated. Train Stage2 using PVNWrapper instead (it can compute observability of maps etc)")
self.prof.tick("out")
action_loss_total = self.cuda_var(torch.zeros([1]))
if batch is None:
print("Skipping None Batch")
return action_loss_total
self.reset()
states, actions_gt_select, v_dist_r_ground_truth_select, cam_poses_select, plan_mask, firstseg_mask = self.unbatch(batch)
count = 0
self.prof.tick("inputs")
batch_size = actions_gt_select.shape[0]
# ----------------------------------------------------------------------------
xvel_dist, yawrate_dist, stop_dist, _ = self(v_dist_r_ground_truth_select, firstseg_mask)
stop_logprob = stop_dist.log_probs(actions_gt_select[:,3]).sum()
avg_stop_logprob = stop_logprob / batch_size
squared_xvel_dst = ((xvel_dist.mean - actions_gt_select[:,0]) ** 2).sum()
squared_yawrate_dst = ((yawrate_dist.mean - actions_gt_select[:,2]) ** 2).sum()
action_loss = -stop_logprob + squared_xvel_dst + squared_yawrate_dst
self.prof.tick("loss")
prefix = self.model_name + ("/eval" if eval else "/train")
self.writer.add_scalar(prefix + "/action_loss", action_loss.data.cpu().item(), self.get_iter())
self.writer.add_scalar(prefix + "/x_sqrdst", squared_xvel_dst.data.cpu().item(), self.get_iter())
self.writer.add_scalar(prefix + "/yaw_sqrdst", (squared_yawrate_dst / batch_size).data.cpu().item(), self.get_iter())
self.writer.add_scalar(prefix + "/stop_logprob", (avg_stop_logprob / batch_size).data.cpu().item(), self.get_iter())
self.writer.add_dict(prefix, get_current_meters(), self.get_iter())
self.inc_iter()
self.prof.tick("summaries")
self.prof.loop()
self.prof.print_stats(1)
return action_loss, self.tensor_store
def get_dataset(self, data=None, envs=None, domain=None, dataset_names=None, dataset_prefix=None, eval=False):
# TODO: Maybe use eval here
data_sources = []
data_sources.append(aup.PROVIDER_TRAJECTORY_GROUND_TRUTH_STATIC)
return SegmentDataset(data=data, env_list=envs, domain=domain, dataset_names=dataset_names, dataset_prefix=dataset_prefix, aux_provider_names=data_sources, segment_level=True)
class Affine2D(nn.Module):
def __init__(self):
super(Affine2D, self).__init__()
self.is_cuda = False
self.cuda_device = None
self.prof = SimpleProfiler(torch_sync=PROFILE, print=PROFILE)
def cuda(self, device=None):
nn.Module.cuda(self, device)
self.is_cuda = True
self.cuda_device = device
return self
def get_pytorch_to_img_mat(self, img_size, inv=False):
"""
Returns an affine transformation matrix that takes an image in coordinate range [-1,1] and turns it
into an image of coordinate range [W,H]
:param img_size: (W,H)
:return:
"""
# First move the image so that the origin is in the top-left corner
# (in pytorch, the origin is in the center of the image)
"""
t1 = np.asarray([
[1.0, 0, 1.0],
[0, 1.0, 1.0],
[0, 0, 1.0]
])
# Then scale the image up to the required size
scale_w = img_size[0] / 2
scale_h = img_size[1] / 2
t2 = np.asarray([
[scale_h, 0, 0],
[0, scale_w, 0],
[0, 0, 1]
])
"""
# First scale the image to pixel coordinates
scale_w = img_size[0] / 2
scale_h = img_size[1] / 2
t1 = np.asarray([[scale_h, 0, 0], [0, scale_w, 0], [0, 0, 1]])
# Then move it such that the corner is at the origin
t2 = np.asarray([[1.0, 0, scale_h], [0, 1.0, scale_w], [0, 0, 1.0]])
T = np.dot(t2, t1)
if inv:
T = np.linalg.inv(T)
T_t = np_to_tensor(T, cuda=False)
return T_t
def img_affines_to_pytorch_cpu(self, img_affines, img_in_size, out_size):
T_src = self.get_pytorch_to_img_mat(img_in_size, inv=False)
Tinv_dst = self.get_pytorch_to_img_mat(out_size, inv=True)
self.prof.tick("getmat")
# Convert pytorch-coord image to imgage pixel coords, apply the transformation, then convert the result back.
batch_size = img_affines.size(0)
T_src = T_src.repeat(batch_size, 1, 1)
Tinv_dst = Tinv_dst.repeat(batch_size, 1, 1)
x = torch.bmm(
img_affines, T_src
) # Convert pytorch coords to pixel coords and apply the transformation
pyt_affines = torch.bmm(
Tinv_dst, x) # Convert the transformation back to pytorch coords
self.prof.tick("convert")
inverses = [torch.inverse(affine) for affine in pyt_affines]
self.prof.tick("inverse")
pyt_affines_inv = torch.stack(inverses, dim=0)
self.prof.tick("stack")
return pyt_affines_inv
def forward(self, image, affine_mat, out_size=None):
"""
Applies the given batch of affine transformation matrices to the batch of images
:param image: batch of images to transform
:param affine: batch of affine matrices to apply. Specified in image coordinates (internally converted to pytorch coords)
:return: batch of images of same size as the input batch with the affine matrix having been applied
"""
batch_size = image.size(0)
self.prof.tick(".")
# Cut off the batch and channel to get the image size as the source size
img_size = list(image.size())[2:4]
if out_size is None:
out_size = img_size
affines_pytorch = self.img_affines_to_pytorch_cpu(
affine_mat, img_size, out_size)
if self.is_cuda:
affines_pytorch = affines_pytorch.cuda(self.cuda_device)
# Build the affine grid
grid = F.affine_grid(
affines_pytorch[:, [0, 1], :],
torch.Size((batch_size, 1, out_size[0], out_size[1]))).float()
self.prof.tick("affine_grid")
# Rotate the input image
rot_img = F.grid_sample(image, grid, padding_mode="zeros")
self.prof.tick("grid_sample")
self.prof.loop()
self.prof.print_stats(10)
return rot_img
def forward(self, v_dist_r, map_structure_r, eval=False, summarize=False):
ACPROF = False
prof = SimpleProfiler(print=ACPROF, torch_sync=ACPROF)
if isinstance(v_dist_r, list):
inners = torch.cat([m.inner_distribution for m in v_dist_r], dim=0)
outers = torch.cat([m.outer_prob_mass for m in v_dist_r], dim=0)
v_dist_r = Partial2DDistribution(inners, outers)
map_structure_r = torch.stack(map_structure_r, dim=0)
if self.ignore_struct:
map_structure_r = torch.zeros_like(map_structure_r)
prof.tick("ac:inputs")
avec = self.action_base(v_dist_r, map_structure_r)
prof.tick("ac:networks - action_base")
vvec = self.value_base(v_dist_r, map_structure_r)
prof.tick("ac:networks - value_base")
action_scores = self.action_head(avec)
prof.tick("ac:networks - action_head")
value_pred = self.value_head(vvec)
prof.tick("ac:networks - value head")
xvel_mean = action_scores[:, 0]
xvel_std = F.softplus(action_scores[:, 2])
xvel_dist = FixedNormal(xvel_mean, xvel_std)
yawrate_mean = action_scores[:, 3]
yawrate_std = F.softplus(action_scores[:, 5])
yawrate_dist = FixedNormal(yawrate_mean, yawrate_std)
# Skew it towards not stopping in the beginning
stop_logits = action_scores[:, 6]
stop_dist = FixedBernoulli(logits=stop_logits)
prof.tick("ac:distributions")
prof.loop()
prof.print_stats(1)
return xvel_dist, yawrate_dist, stop_dist, value_pred