def __init__(self,
ds_path,
seed=0,
sequence_length = 3,
num_scales = 4):
np.random.seed(seed)
random.seed(seed)
self.num_scales = num_scales
seq_list = get_lists(ds_path)
self.samples = get_samples(seq_list, sequence_length)
# get by calib.py
self.intrinsics = np.array([
[1.14183754e+03, 0.00000000e+00, 6.28283670e+02],
[0.00000000e+00, 1.13869492e+03, 3.56277189e+02],
[0.00000000e+00, 0.00000000e+00, 1.00000000e+00],
]).astype(np.float32)
# resize 1280 x 720 -> 416 x 128
self.intrinsics[0] = self.intrinsics[0]*(416.0/1280.0)
self.intrinsics[1] = self.intrinsics[1]*(128.0/720.0)
self.ms_k = get_multi_scale_intrinsics(self.intrinsics, self.num_scales)
self.ms_inv_k = get_multi_scale_inv_intrinsics(self.intrinsics, self.num_scales)
######################
self.to_tensor = custom_transforms.Compose([ custom_transforms.ArrayToTensor() ])
self.to_tensor_norm = custom_transforms.Compose([ custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(
mean=[0.485, 0.456, 0.406],
std =[0.229, 0.224, 0.225])
])
def dataflow_test():
from DataFlow.sequence_folders import SequenceFolder
import custom_transforms
from torch.utils.data import DataLoader
from DataFlow.validation_folders import ValidationSet
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize])
valid_transform = custom_transforms.Compose([custom_transforms.ArrayToTensor(), normalize])
datapath = 'G:/data/KITTI/KittiRaw_formatted'
seed = 8964
train_set = SequenceFolder(datapath, transform=train_transform, seed=seed, train=True,
sequence_length=3)
train_loader = DataLoader(train_set, batch_size=4, shuffle=True, num_workers=4,
pin_memory=True)
val_set = ValidationSet(datapath, transform=valid_transform)
print("length of train loader is %d" % len(train_loader))
val_loader = DataLoader(val_set, batch_size=4, shuffle=False, num_workers=4, pin_memory=True)
print("length of val loader is %d" % len(val_loader))
dataiter = iter(train_loader)
imgs, intrinsics = next(dataiter)
print(len(imgs))
print(intrinsics.shape)
pass
def main():
global args, best_error, n_iter
args = parser.parse_args()
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
custom_transforms.RandomRotate(),
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize
])
train_set = SequenceFolder(args.data,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length)
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=4,
shuffle=True,
num_workers=4,
pin_memory=True,
drop_last=True)
print(len(train_loader))
def main():
args = parser.parse_args()
config = load_config(args.config)
# directory for storing output
output_dir = os.path.join(config.save_path, "results", args.seq)
# load configuration from checkpoints
if args.use_latest_not_best:
config.posenet = os.path.join(config.save_path,
"posenet_checkpoint.pth.tar")
output_dir = output_dir + "-latest"
else:
config.posenet = os.path.join(config.save_path, "posenet_best.pth.tar")
os.makedirs(output_dir)
# define transformations
transform = custom_transforms.Compose([
custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
])
# load dataset loader
dataset = SequenceFolder(
config.data,
cameras=config.cameras,
gray=config.gray,
sequence_length=config.sequence_length,
shuffle=False,
train=False,
transform=transform,
sequence=args.seq,
)
input_channels = dataset[0][1].shape[0]
# define posenet
pose_net = PoseNet(in_channels=input_channels,
nb_ref_imgs=2,
output_exp=False).to(device)
weights = torch.load(config.posenet)
pose_net.load_state_dict(weights['state_dict'])
pose_net.eval()
# prediction
poses = []
for i, (tgt, tgt_lf, ref, ref_lf, k, kinv, pose_gt) in enumerate(dataset):
print("{:03d}/{:03d}".format(i + 1, len(dataset)), end="\r")
tgt = tgt.unsqueeze(0).to(device)
ref = [r.unsqueeze(0).to(device) for r in ref]
tgt_lf = tgt_lf.unsqueeze(0).to(device)
ref_lf = [r.unsqueeze(0).to(device) for r in ref_lf]
exp, pose = pose_net(tgt_lf, ref_lf)
poses.append(pose[0, 1, :].cpu().numpy())
# save poses
outdir = os.path.join(output_dir, "poses.npy")
np.save(outdir, poses)
print("\nok")
def main():
print('=> PyTorch version: ' + torch.__version__ + ' || CUDA_VISIBLE_DEVICES: ' + os.environ["CUDA_VISIBLE_DEVICES"])
global device
args = parser.parse_args()
if args.save_fig:
timestamp = datetime.datetime.now().strftime("%m-%d-%H:%M")
args.save_path = 'outputs'/Path(args.name)/timestamp
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
print("=> fetching scenes in '{}'".format(args.data))
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
demo_transform = custom_transforms.Compose([
custom_transforms.ArrayToTensor(),
normalize
])
demo_set = SequenceFolder(
args.data,
transform=demo_transform,
max_num_instances=args.mni
)
print('=> {} samples found'.format(len(demo_set)))
demo_loader = torch.utils.data.DataLoader(demo_set, batch_size=args.batch_size, shuffle=False, num_workers=args.workers, pin_memory=True)
# create model
print("=> creating model")
disp_net = models.DispResNet().to(device)
ego_pose_net = models.EgoPoseNet().to(device)
obj_pose_net = models.ObjPoseNet().to(device)
if args.pretrained_ego_pose:
print("=> using pre-trained weights for EgoPoseNet")
weights = torch.load(args.pretrained_ego_pose)
ego_pose_net.load_state_dict(weights['state_dict'], strict=False)
else:
ego_pose_net.init_weights()
if args.pretrained_obj_pose:
print("=> using pre-trained weights for ObjPoseNet")
weights = torch.load(args.pretrained_obj_pose)
obj_pose_net.load_state_dict(weights['state_dict'], strict=False)
else:
obj_pose_net.init_weights()
if args.pretrained_disp:
print("=> using pre-trained weights for DispResNet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'], strict=False)
else:
disp_net.init_weights()
cudnn.benchmark = True
disp_net = torch.nn.DataParallel(disp_net)
ego_pose_net = torch.nn.DataParallel(ego_pose_net)
obj_pose_net = torch.nn.DataParallel(obj_pose_net)
demo_visualize(args, demo_loader, disp_net, ego_pose_net, obj_pose_net)
def save_mask_all():
args = parser.parse_args()
weights = torch.load(args.pretrained)
seq_length = int(weights['state_dict']['conv1.0.weight'].size(1) / 3)
mask_net = getattr(models, 'MaskNet6')(nb_ref_imgs=5 - 1,
output_exp=True).cuda()
mask_net.load_state_dict(weights['state_dict'], strict=False)
mask_net.eval()
dataset_dir = Path(args.dataset_dir)
output_dir = Path(args.output_dir)
output_dir.makedirs_p()
trace_dir = output_dir / args.trace_dir # 轨迹
trace_dir.makedirs_p()
# data prepare
normalize = custom_transforms.NormalizeLocally()
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
val_set = SequenceFolder( # 只有图
args.dataset_dir,
transform=valid_transform,
seed=None,
train=False,
sequence_length=5,
target_transform=None)
if len(val_set) == 0:
print('读取错误')
return
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=1,
shuffle=False,
num_workers=2,
pin_memory=True,
drop_last=True)
mask_all = None
print(len(val_loader))
for i, (tgt_img, ref_imgs, intrinsics,
intrinsics_inv) in enumerate(val_loader):
tgt_img = tgt_img.to(device)
ref_imgs = [img.to(device) for img in ref_imgs]
explainability_mask = mask_net(tgt_img, ref_imgs)
#explainability_mask = torch.cat([explainability_mask[:, :len(ref_imgs) // 2, :],
# torch.zeros(1, 1, 6).float().to(device),
# explainability_mask[:, len(ref_imgs) // 2:, :]], dim=1) # add 0
if i == 0:
mask_all = explainability_mask
else:
mask_all = torch.cat([mask_all, explainability_mask])
np.save('mask_all.npy', mask_all.detach().cpu().numpy())
def get_train_transforms(normalize): train_transforms = [] train_transforms.append(transforms.Scale(160)) train_transforms.append(transforms.RandomHorizontalFlip()) train_transforms.append(transforms.RandomColor(0.15)) train_transforms.append(transforms.RandomRotate(15)) train_transforms.append(transforms.RandomSizedCrop(128)) train_transforms.append(transforms.ToTensor()) train_transforms.append(normalize) train_transforms = transforms.Compose(train_transforms) return train_transforms
def main():
global global_vars_dict
args = global_vars_dict['args']
normalize = custom_transforms.NormalizeLocally()
valid_transform = custom_transforms.Compose([custom_transforms.ArrayToTensor(), normalize])
timestamp = datetime.datetime.now().strftime("%m-%d-%H:%M")
args.save_path = Path('test_out')/ Path(args.sq_name)
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
tb_writer = SummaryWriter(args.save_path)
val_set = SequenceFolder( # 只有图
args.data,
transform=valid_transform,
seed=None,
train=False,
sequence_length=args.sequence_length,
target_transform=None
)
val_loader = torch.utils.data.DataLoader(
val_set, batch_size=1, shuffle=False,
num_workers=args.workers, pin_memory=True, drop_last=True)
print("=> creating model")
# 1.1 disp_net
disp_net = getattr(models, args.dispnet)().cuda()
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
# 1.2 pose_net
pose_net = getattr(models, args.posenet)(nb_ref_imgs=args.sequence_length - 1).cuda()
weights = torch.load(args.pretrained_pose)
pose_net.load_state_dict(weights['state_dict'])
# 1.3.flow_net
flow_net = getattr(models, args.flownet)(nlevels=args.nlevels).cuda()
weights = torch.load(args.pretrained_flow)
flow_net.load_state_dict(weights['state_dict'])
# 1.4 mask_net
mask_net = getattr(models, args.masknet)(nb_ref_imgs=args.sequence_length - 1, output_exp=True).cuda()
weights = torch.load(args.pretrained_mask)
mask_net.load_state_dict(weights['state_dict'])
disp_list,disp_arr,flow_list,mask_list= test(val_loader,disp_net,mask_net,pose_net, flow_net, tb_writer,global_vars_dict = global_vars_dict)
print('over')
def init(self,
ds_path,
AoI,
seed=0,
sequence_length = 3,
num_scales = 4):
np.random.seed(seed)
random.seed(seed)
self.num_scales = num_scales
seq_list = get_lists(ds_path)
self.samples = get_samples(seq_list, sequence_length,AoI)
# get by calib.py
self.intrinsics = np.array([
[1.14183754e+03, 0.00000000e+00, 6.28283670e+02],
[0.00000000e+00, 1.13869492e+03, 3.56277189e+02],
[0.00000000e+00, 0.00000000e+00, 1.00000000e+00],
]).astype(np.float32)
# The original size of the picture taken by my phone camera is 1280 x 720.
# if your original picture size is not 1280 x 720, change the two numbers below
# resize 1280 x 720 -> 416 x 128
self.intrinsics[0] = self.intrinsics[0]*(416.0/1280.0)
self.intrinsics[1] = self.intrinsics[1]*(128.0/720.0)
self.ms_k = get_multi_scale_intrinsics(self.intrinsics, self.num_scales)
self.ms_inv_k = get_multi_scale_inv_intrinsics(self.intrinsics, self.num_scales)
######################
self.to_tensor = custom_transforms.Compose([ custom_transforms.ArrayToTensor() ])
self.to_tensor_norm = custom_transforms.Compose([ custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(
mean=[0.485, 0.456, 0.406],
std =[0.229, 0.224, 0.225])
])
def make_augmentation_transforms(augmentation, mode):
if mode == 'train':
transforms = [
t.RandomPadToLength(length=config.AUDIO_LENGTH),
t.Noise(
length=config.AUDIO_LENGTH,
noise_waves=load_noise_waves(),
noise_limit=0.2,
).with_prob(0.5),
t.RandomShift(shift_limit=0.2).with_prob(0.5),
]
else:
transforms = [t.PadToLength(length=config.AUDIO_LENGTH)]
transforms.append(augmentations[augmentation])
transforms += [
t.Pad(((0, 0), (0, 1)), 'constant'),
t.ExpandDims(),
t.ToTensor(),
]
return t.Compose(transforms)
def main():
global global_vars_dict
args = global_vars_dict['args']
best_error = -1 #best model choosing
#mkdir
timestamp = datetime.datetime.now().strftime("%m-%d-%H:%M")
args.save_path = Path('checkpoints') / Path(args.data_dir).stem / timestamp
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
if args.alternating:
args.alternating_flags = np.array([False, False, True])
#mk writers
tb_writer = SummaryWriter(args.save_path)
# Data loading code and transpose
if args.data_normalization == 'global':
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
elif args.data_normalization == 'local':
normalize = custom_transforms.NormalizeLocally()
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
print("=> fetching scenes in '{}'".format(args.data_dir))
train_transform = custom_transforms.Compose([
#custom_transforms.RandomRotate(),
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(),
normalize
])
#train set, loader only建立一个
from datasets.sequence_mc import SequenceFolder
train_set = SequenceFolder( # mc data folder
args.data_dir,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length, # 5
target_transform=None,
depth_format='png')
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
#val set,loader 挨个建立
#if args.val_with_depth_gt:
from datasets.validation_folders2 import ValidationSet
val_set_with_depth_gt = ValidationSet(args.data_dir,
transform=valid_transform,
depth_format='png')
val_loader_depth = torch.utils.data.DataLoader(val_set_with_depth_gt,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
#1 create model
print("=> creating model")
#1.1 disp_net
disp_net = getattr(models, args.dispnet)().cuda()
output_exp = True #args.mask_loss_weight > 0
if args.pretrained_disp:
print("=> using pre-trained weights from {}".format(
args.pretrained_disp))
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
else:
disp_net.init_weights()
if args.resume:
print("=> resuming from checkpoint")
dispnet_weights = torch.load(args.save_path /
'dispnet_checkpoint.pth.tar')
disp_net.load_state_dict(dispnet_weights['state_dict'])
cudnn.benchmark = True
disp_net = torch.nn.DataParallel(disp_net)
print('=> setting adam solver')
parameters = chain(disp_net.parameters())
optimizer = torch.optim.Adam(parameters,
args.lr,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
if args.resume and (args.save_path /
'optimizer_checkpoint.pth.tar').exists():
print("=> loading optimizer from checkpoint")
optimizer_weights = torch.load(args.save_path /
'optimizer_checkpoint.pth.tar')
optimizer.load_state_dict(optimizer_weights['state_dict'])
#
if args.log_terminal:
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader_depth))
logger.reset_epoch_bar()
else:
logger = None
#预先评估下
criterion_train = MaskedL1Loss().to(device) # l1LOSS 容易优化
criterion_val = ComputeErrors().to(device)
#depth_error_names,depth_errors = validate_depth_with_gt(val_loader_depth, disp_net,criterion=criterion_val, epoch=0, logger=logger,tb_writer=tb_writer,global_vars_dict=global_vars_dict)
#logger.reset_epoch_bar()
# logger.epoch_logger_update(epoch=0,time=0,names=depth_error_names,values=depth_errors)
epoch_time = AverageMeter()
end = time.time()
#3. main cycle
for epoch in range(1, args.epochs): #epoch 0 在第没入循环之前已经测试了.
logger.reset_train_bar()
logger.reset_valid_bar()
errors = [0]
error_names = ['no error names depth']
#3.2 train for one epoch---------
loss_names, losses = train_depth_gt(train_loader=train_loader,
disp_net=disp_net,
optimizer=optimizer,
criterion=criterion_train,
logger=logger,
train_writer=tb_writer,
global_vars_dict=global_vars_dict)
#3.3 evaluate on validation set-----
depth_error_names, depth_errors = validate_depth_with_gt(
val_loader=val_loader_depth,
disp_net=disp_net,
criterion=criterion_val,
epoch=epoch,
logger=logger,
tb_writer=tb_writer,
global_vars_dict=global_vars_dict)
epoch_time.update(time.time() - end)
end = time.time()
#3.5 log_terminal
#if args.log_terminal:
if args.log_terminal:
logger.epoch_logger_update(epoch=epoch,
time=epoch_time,
names=depth_error_names,
values=depth_errors)
# tensorboard scaler
#train loss
for loss_name, loss in zip(loss_names, losses.avg):
tb_writer.add_scalar('train/' + loss_name, loss, epoch)
#val_with_gt loss
for name, error in zip(depth_error_names, depth_errors.avg):
tb_writer.add_scalar('val/' + name, error, epoch)
#3.6 save model and remember lowest error and save checkpoint
total_loss = losses.avg[0]
if best_error < 0:
best_error = total_loss
is_best = total_loss <= best_error
best_error = min(best_error, total_loss)
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': disp_net.module.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': None
}, {
'epoch': epoch + 1,
'state_dict': None
}, {
'epoch': epoch + 1,
'state_dict': None
}, is_best)
if args.log_terminal:
logger.epoch_bar.finish()
def main():
global args
args = parser.parse_args()
save_path = Path(args.name)
args.save_path = 'checkpoints'/save_path
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
# custom_transforms.RandomRotate(),
# custom_transforms.RandomHorizontalFlip(),
# custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(),
normalize ])
training_writer = SummaryWriter(args.save_path)
intrinsics = np.array([542.822841, 0, 315.593520, 0, 542.576870, 237.756098, 0, 0, 1]).astype(np.float32).reshape((3, 3))
inference_set = SequenceFolder(
root = args.dataset_dir,
intrinsics = intrinsics,
transform=train_transform,
train=False,
sequence_length=args.sequence_length
)
print('{} samples found in {} train scenes'.format(len(inference_set), len(inference_set.scenes)))
inference_loader = torch.utils.data.DataLoader(
inference_set, batch_size=1, shuffle=False,
num_workers=args.workers, pin_memory=True, drop_last=True)
print("=> creating model")
mask_net = MaskResNet6.MaskResNet6().cuda()
pose_net = PoseNetB6.PoseNetB6().cuda()
mask_net = torch.nn.DataParallel(mask_net)
masknet_weights = torch.load(args.pretrained_mask)#
posenet_weights = torch.load(args.pretrained_pose)
mask_net.load_state_dict(masknet_weights['state_dict'])
# pose_net.load_state_dict(posenet_weights['state_dict'])
pose_net.eval()
mask_net.eval()
# training
for i, (rgb_tgt_img, rgb_ref_imgs, intrinsics, intrinsics_inv) in enumerate(tqdm(inference_loader)):
#print(rgb_tgt_img)
tgt_img_var = Variable(rgb_tgt_img.cuda(), volatile=True)
ref_imgs_var = [Variable(img.cuda(), volatile=True) for img in rgb_ref_imgs]
intrinsics_var = Variable(intrinsics.cuda(), volatile=True)
intrinsics_inv_var = Variable(intrinsics_inv.cuda(), volatile=True)
explainability_mask = mask_net(tgt_img_var, ref_imgs_var)
after_mask = tensor2array(ref_imgs_var[0][0]*explainability_mask[0,0]).transpose(1,2,0)
x = Image.fromarray(np.uint8(after_mask*255))
x.save(args.save_path/str(i).zfill(3)+'multi.png')
explainability_mask = (explainability_mask[0,0].detach().cpu()).numpy()
# print(explainability_mask.shape)
y = Image.fromarray(np.uint8(explainability_mask*255))
y.save(args.save_path/str(i).zfill(3)+'mask.png')
def main():
args = parser.parse_args()
output_dir = Path(args.output_dir)
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
val_set = SequenceFolder(args.data,
transform=valid_transform,
seed=args.seed,
sequence_length=args.sequence_length)
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
dpsnet = PSNet(args.nlabel, args.mindepth).cuda()
weights = torch.load(args.pretrained_dps)
dpsnet.load_state_dict(weights['state_dict'])
dpsnet.eval()
output_dir = Path(args.output_dir)
if not os.path.isdir(output_dir):
os.mkdir(output_dir)
errors = np.zeros((2, 8, int(len(val_loader) / args.print_freq) + 1),
np.float32)
with torch.no_grad():
for ii, (tgt_img, ref_imgs, ref_poses, intrinsics, intrinsics_inv,
tgt_depth, scale_) in enumerate(val_loader):
if ii % args.print_freq == 0:
i = int(ii / args.print_freq)
tgt_img_var = Variable(tgt_img.cuda())
ref_imgs_var = [Variable(img.cuda()) for img in ref_imgs]
ref_poses_var = [Variable(pose.cuda()) for pose in ref_poses]
intrinsics_var = Variable(intrinsics.cuda())
intrinsics_inv_var = Variable(intrinsics_inv.cuda())
tgt_depth_var = Variable(tgt_depth.cuda())
scale = scale_.numpy()[0]
# compute output
pose = torch.cat(ref_poses_var, 1)
start = time.time()
output_depth = dpsnet(tgt_img_var, ref_imgs_var, pose,
intrinsics_var, intrinsics_inv_var)
elps = time.time() - start
mask = (tgt_depth <= args.maxdepth) & (
tgt_depth >= args.mindepth) & (tgt_depth == tgt_depth)
tgt_disp = args.mindepth * args.nlabel / tgt_depth
output_disp = args.mindepth * args.nlabel / output_depth
output_disp_ = torch.squeeze(output_disp.data.cpu(), 1)
output_depth_ = torch.squeeze(output_depth.data.cpu(), 1)
errors[0, :,
i] = compute_errors_test(tgt_depth[mask] / scale,
output_depth_[mask] / scale)
errors[1, :,
i] = compute_errors_test(tgt_disp[mask] / scale,
output_disp_[mask] / scale)
print('Elapsed Time {} Abs Error {:.4f}'.format(
elps, errors[0, 0, i]))
if args.output_print:
output_disp_n = (output_disp_).numpy()[0]
np.save(output_dir / '{:04d}{}'.format(i, '.npy'),
output_disp_n)
disp = (255 * tensor2array(torch.from_numpy(output_disp_n),
max_value=args.nlabel,
colormap='bone')).astype(
np.uint8)
imsave(output_dir / '{:04d}_disp{}'.format(i, '.png'),
disp)
mean_errors = errors.mean(2)
error_names = [
'abs_rel', 'abs_diff', 'sq_rel', 'rms', 'log_rms', 'a1', 'a2', 'a3'
]
print("{}".format(args.output_dir))
print("Depth Results : ")
print("{:>10}, {:>10}, {:>10}, {:>10}, {:>10}, {:>10}, {:>10}, {:>10}".
format(*error_names))
print(
"{:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}"
.format(*mean_errors[0]))
print("Disparity Results : ")
print("{:>10}, {:>10}, {:>10}, {:>10}, {:>10}, {:>10}, {:>10}, {:>10}".
format(*error_names))
print(
"{:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}"
.format(*mean_errors[1]))
np.savetxt(output_dir / 'errors.csv',
mean_errors,
fmt='%1.4f',
delimiter=',')
def main():
global n_iter
args = parser.parse_args()
save_path = save_path_formatter(args, parser)
args.save_path = 'checkpoints' / (args.exp + '_' + save_path)
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
training_writer = SummaryWriter(args.save_path)
output_writers = []
for i in range(3):
output_writers.append(SummaryWriter(args.save_path / 'valid' / str(i)))
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize
])
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
print("=> fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(args.data,
transform=train_transform,
seed=args.seed,
ttype=args.ttype,
dataset=args.dataset)
val_set = SequenceFolder(args.data,
transform=valid_transform,
seed=args.seed,
ttype=args.ttype2,
dataset=args.dataset)
train_set.samples = train_set.samples[:len(train_set) -
len(train_set) % args.batch_size]
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=1,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
# create model
print("=> creating model")
mvdnet = MVDNet(args.nlabel, args.mindepth, no_pool=args.no_pool).cuda()
mvdnet.init_weights()
if args.pretrained_mvdn:
print("=> using pre-trained weights for MVDNet")
weights = torch.load(args.pretrained_mvdn)
mvdnet.load_state_dict(weights['state_dict'])
depth_cons = DepthCons().cuda()
depth_cons.init_weights()
if args.pretrained_cons:
print("=> using pre-trained weights for ConsNet")
weights = torch.load(args.pretrained_cons)
depth_cons.load_state_dict(weights['state_dict'])
cons_loss_ = ConsLoss().cuda()
print('=> setting adam solver')
if args.train_cons:
optimizer = torch.optim.Adam(depth_cons.parameters(),
args.lr,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
mvdnet.eval()
else:
optimizer = torch.optim.Adam(mvdnet.parameters(),
args.lr,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
cudnn.benchmark = True
mvdnet = torch.nn.DataParallel(mvdnet)
depth_cons = torch.nn.DataParallel(depth_cons)
print(' ==> setting log files')
with open(args.save_path / args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([
'train_loss', 'validation_abs_rel', 'validation_abs_diff',
'validation_sq_rel', 'validation_a1', 'validation_a2',
'validation_a3', 'mean_angle_error'
])
with open(args.save_path / args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss'])
print(' ==> main Loop')
for epoch in range(args.epochs):
adjust_learning_rate(args, optimizer, epoch)
# train for one epoch
if args.evaluate:
train_loss = 0
else:
train_loss = train(args, train_loader, mvdnet, depth_cons,
cons_loss_, optimizer, args.epoch_size,
training_writer, epoch)
if not args.evaluate and (args.skip_v):
error_names = [
'abs_rel', 'abs_diff', 'sq_rel', 'a1', 'a2', 'a3', 'angle'
]
errors = [0] * 7
else:
errors, error_names = validate_with_gt(args, val_loader, mvdnet,
depth_cons, epoch,
output_writers)
error_string = ', '.join('{} : {:.3f}'.format(name, error)
for name, error in zip(error_names, errors))
for error, name in zip(errors, error_names):
training_writer.add_scalar(name, error, epoch)
# Up to you to chose the most relevant error to measure your model's performance, careful some measures are to maximize (such as a1,a2,a3)
decisive_error = errors[0]
with open(args.save_path / args.log_summary, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([
train_loss, decisive_error, errors[1], errors[2], errors[3],
errors[4], errors[5], errors[6]
])
if args.evaluate:
break
if args.train_cons:
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': depth_cons.module.state_dict()
},
epoch,
file_prefixes=['cons'])
else:
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': mvdnet.module.state_dict()
},
epoch,
file_prefixes=['mvdnet'])
def main():
global args
args = parser.parse_args()
args.pretrained_disp = Path(args.pretrained_disp)
args.pretrained_pose = Path(args.pretrained_pose)
args.pretrained_mask = Path(args.pretrained_mask)
args.pretrained_flow = Path(args.pretrained_flow)
if args.output_dir is not None:
args.output_dir = Path(args.output_dir)
args.output_dir.makedirs_p()
image_dir = args.output_dir / 'images'
gt_dir = args.output_dir / 'gt'
mask_dir = args.output_dir / 'mask'
viz_dir = args.output_dir / 'viz'
rigidity_mask_dir = args.output_dir / 'rigidity'
rigidity_census_mask_dir = args.output_dir / 'rigidity_census'
explainability_mask_dir = args.output_dir / 'explainability'
image_dir.makedirs_p()
gt_dir.makedirs_p()
mask_dir.makedirs_p()
viz_dir.makedirs_p()
rigidity_mask_dir.makedirs_p()
rigidity_census_mask_dir.makedirs_p()
explainability_mask_dir.makedirs_p()
output_writer = SummaryWriter(args.output_dir)
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
flow_loader_h, flow_loader_w = 256, 832
valid_flow_transform = custom_transforms.Compose([
custom_transforms.Scale(h=flow_loader_h, w=flow_loader_w),
custom_transforms.ArrayToTensor(), normalize
])
val_flow_set = ValidationMask(root=args.kitti_dir,
sequence_length=5,
transform=valid_flow_transform)
val_loader = torch.utils.data.DataLoader(val_flow_set,
batch_size=1,
shuffle=False,
num_workers=2,
pin_memory=True,
drop_last=True)
disp_net = getattr(models, args.dispnet)().cuda()
pose_net = getattr(models, args.posenet)(nb_ref_imgs=4).cuda()
mask_net = getattr(models, args.masknet)(nb_ref_imgs=4).cuda()
flow_net = getattr(models, args.flownet)(nlevels=args.nlevels).cuda()
dispnet_weights = torch.load(args.pretrained_disp)
posenet_weights = torch.load(args.pretrained_pose)
masknet_weights = torch.load(args.pretrained_mask)
flownet_weights = torch.load(args.pretrained_flow)
disp_net.load_state_dict(dispnet_weights['state_dict'])
pose_net.load_state_dict(posenet_weights['state_dict'])
flow_net.load_state_dict(flownet_weights['state_dict'])
mask_net.load_state_dict(masknet_weights['state_dict'])
disp_net.eval()
pose_net.eval()
mask_net.eval()
flow_net.eval()
error_names = ['tp_0', 'fp_0', 'fn_0', 'tp_1', 'fp_1', 'fn_1']
errors = AverageMeter(i=len(error_names))
errors_census = AverageMeter(i=len(error_names))
errors_bare = AverageMeter(i=len(error_names))
for i, (tgt_img, ref_imgs, intrinsics, intrinsics_inv, flow_gt, obj_map_gt,
semantic_map_gt) in enumerate(tqdm(val_loader)):
tgt_img_var = Variable(tgt_img.cuda(), volatile=True)
ref_imgs_var = [
Variable(img.cuda(), volatile=True) for img in ref_imgs
]
intrinsics_var = Variable(intrinsics.cuda(), volatile=True)
intrinsics_inv_var = Variable(intrinsics_inv.cuda(), volatile=True)
flow_gt_var = Variable(flow_gt.cuda(), volatile=True)
obj_map_gt_var = Variable(obj_map_gt.cuda(), volatile=True)
disp = disp_net(tgt_img_var)
depth = 1 / disp
pose = pose_net(tgt_img_var, ref_imgs_var)
explainability_mask = mask_net(tgt_img_var, ref_imgs_var)
if args.flownet in ['Back2Future']:
flow_fwd, flow_bwd, _ = flow_net(tgt_img_var, ref_imgs_var[1:3])
else:
flow_fwd = flow_net(tgt_img_var, ref_imgs_var[2])
flow_cam = pose2flow(depth.squeeze(1), pose[:, 2], intrinsics_var,
intrinsics_inv_var)
rigidity_mask = 1 - (1 - explainability_mask[:, 1]) * (
1 - explainability_mask[:, 2]).unsqueeze(1) > 0.5
rigidity_mask_census_soft = (flow_cam - flow_fwd).pow(2).sum(
dim=1).unsqueeze(1).sqrt() #.normalize()
rigidity_mask_census_soft = 1 - rigidity_mask_census_soft / rigidity_mask_census_soft.max(
)
rigidity_mask_census = rigidity_mask_census_soft > args.THRESH
rigidity_mask_combined = 1 - (
1 - rigidity_mask.type_as(explainability_mask)) * (
1 - rigidity_mask_census.type_as(explainability_mask))
flow_fwd_non_rigid = (1 - rigidity_mask_combined).type_as(
flow_fwd).expand_as(flow_fwd) * flow_fwd
flow_fwd_rigid = rigidity_mask_combined.type_as(flow_fwd).expand_as(
flow_fwd) * flow_cam
total_flow = flow_fwd_rigid + flow_fwd_non_rigid
obj_map_gt_var_expanded = obj_map_gt_var.unsqueeze(1).type_as(flow_fwd)
tgt_img_np = tgt_img[0].numpy()
rigidity_mask_combined_np = rigidity_mask_combined.cpu().data[0].numpy(
)
rigidity_mask_census_np = rigidity_mask_census.cpu().data[0].numpy()
rigidity_mask_bare_np = rigidity_mask.cpu().data[0].numpy()
gt_mask_np = obj_map_gt[0].numpy()
semantic_map_np = semantic_map_gt[0].numpy()
_errors = mask_error(gt_mask_np, semantic_map_np,
rigidity_mask_combined_np[0])
_errors_census = mask_error(gt_mask_np, semantic_map_np,
rigidity_mask_census_np[0])
_errors_bare = mask_error(gt_mask_np, semantic_map_np,
rigidity_mask_bare_np[0])
errors.update(_errors)
errors_census.update(_errors_census)
errors_bare.update(_errors_bare)
if args.output_dir is not None:
np.save(image_dir / str(i).zfill(3), tgt_img_np)
np.save(gt_dir / str(i).zfill(3), gt_mask_np)
np.save(mask_dir / str(i).zfill(3), rigidity_mask_combined_np)
np.save(rigidity_mask_dir / str(i).zfill(3),
rigidity_mask.cpu().data[0].numpy())
np.save(rigidity_census_mask_dir / str(i).zfill(3),
rigidity_mask_census.cpu().data[0].numpy())
np.save(explainability_mask_dir / str(i).zfill(3),
explainability_mask[:, 1].cpu().data[0].numpy())
# rigidity_mask_dir rigidity_mask.numpy()
# rigidity_census_mask_dir rigidity_mask_census.numpy()
if (args.output_dir is not None) and i % 10 == 0:
ind = int(i // 10)
output_writer.add_image(
'val Dispnet Output Normalized',
tensor2array(disp.data[0].cpu(),
max_value=None,
colormap='bone'), ind)
output_writer.add_image('val Input',
tensor2array(tgt_img[0].cpu()), i)
output_writer.add_image(
'val Total Flow Output',
flow_to_image(tensor2array(total_flow.data[0].cpu())), ind)
output_writer.add_image(
'val Rigid Flow Output',
flow_to_image(tensor2array(flow_fwd_rigid.data[0].cpu())), ind)
output_writer.add_image(
'val Non-rigid Flow Output',
flow_to_image(tensor2array(flow_fwd_non_rigid.data[0].cpu())),
ind)
output_writer.add_image(
'val Rigidity Mask',
tensor2array(rigidity_mask.data[0].cpu(),
max_value=1,
colormap='bone'), ind)
output_writer.add_image(
'val Rigidity Mask Census',
tensor2array(rigidity_mask_census.data[0].cpu(),
max_value=1,
colormap='bone'), ind)
output_writer.add_image(
'val Rigidity Mask Combined',
tensor2array(rigidity_mask_combined.data[0].cpu(),
max_value=1,
colormap='bone'), ind)
if args.output_dir is not None:
tgt_img_viz = tensor2array(tgt_img[0].cpu())
depth_viz = tensor2array(disp.data[0].cpu(),
max_value=None,
colormap='magma')
mask_viz = tensor2array(rigidity_mask_census_soft.data[0].cpu(),
max_value=1,
colormap='bone')
row2_viz = flow_to_image(
np.hstack((tensor2array(flow_cam.data[0].cpu()),
tensor2array(flow_fwd_non_rigid.data[0].cpu()),
tensor2array(total_flow.data[0].cpu()))))
row1_viz = np.hstack((tgt_img_viz, depth_viz, mask_viz))
####### sửa 2 cái vstack thành hstack ###############
viz3 = np.hstack(
(255 * tgt_img_viz, 255 * depth_viz, 255 * mask_viz,
flow_to_image(
np.hstack((tensor2array(flow_fwd_non_rigid.data[0].cpu()),
tensor2array(total_flow.data[0].cpu()))))))
########################################################
######## code tự thêm ####################
row1_viz = np.transpose(row1_viz, (1, 2, 0))
row2_viz = np.transpose(row2_viz, (1, 2, 0))
viz3 = np.transpose(viz3, (1, 2, 0))
##########################################
row1_viz_im = Image.fromarray((255 * row1_viz).astype('uint8'))
row2_viz_im = Image.fromarray((row2_viz).astype('uint8'))
viz3_im = Image.fromarray(viz3.astype('uint8'))
row1_viz_im.save(viz_dir / str(i).zfill(3) + '01.png')
row2_viz_im.save(viz_dir / str(i).zfill(3) + '02.png')
viz3_im.save(viz_dir / str(i).zfill(3) + '03.png')
bg_iou = errors.sum[0] / (errors.sum[0] + errors.sum[1] + errors.sum[2])
fg_iou = errors.sum[3] / (errors.sum[3] + errors.sum[4] + errors.sum[5])
avg_iou = (bg_iou + fg_iou) / 2
bg_iou_census = errors_census.sum[0] / (
errors_census.sum[0] + errors_census.sum[1] + errors_census.sum[2])
fg_iou_census = errors_census.sum[3] / (
errors_census.sum[3] + errors_census.sum[4] + errors_census.sum[5])
avg_iou_census = (bg_iou_census + fg_iou_census) / 2
bg_iou_bare = errors_bare.sum[0] / (
errors_bare.sum[0] + errors_bare.sum[1] + errors_bare.sum[2])
fg_iou_bare = errors_bare.sum[3] / (
errors_bare.sum[3] + errors_bare.sum[4] + errors_bare.sum[5])
avg_iou_bare = (bg_iou_bare + fg_iou_bare) / 2
print("Results Full Model")
print("\t {:>10}, {:>10}, {:>10} ".format('iou', 'bg_iou', 'fg_iou'))
print("Errors \t {:10.4f}, {:10.4f} {:10.4f}".format(
avg_iou, bg_iou, fg_iou))
print("Results Census only")
print("\t {:>10}, {:>10}, {:>10} ".format('iou', 'bg_iou', 'fg_iou'))
print("Errors \t {:10.4f}, {:10.4f} {:10.4f}".format(
avg_iou_census, bg_iou_census, fg_iou_census))
print("Results Bare")
print("\t {:>10}, {:>10}, {:>10} ".format('iou', 'bg_iou', 'fg_iou'))
print("Errors \t {:10.4f}, {:10.4f} {:10.4f}".format(
avg_iou_bare, bg_iou_bare, fg_iou_bare))
def main():
best_error = -1
n_iter = 0
torch_device = torch.device(
"cuda") if torch.cuda.is_available() else torch.device("cpu")
# parse training arguments
args = parse_training_args()
args.training_output_freq = 100 # resetting the training output frequency here.
# create a folder to save the output of training
save_path = make_save_path(args)
args.save_path = save_path
# save the current configuration to a pickel file
dump_config(save_path, args)
print('=> Saving checkpoints to {}'.format(save_path))
# set manual seed. WHY??
torch.manual_seed(args.seed)
# tensorboard summary
tb_writer = SummaryWriter(save_path)
# Data preprocessing
train_transform = valid_transform = custom_transforms.Compose([
custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(mean=0.5, std=0.5)
])
# Load datasets
print("=> Fetching scenes in '{}'".format(args.data))
train_set = val_set = None
if args.lfformat is 'focalstack':
train_set, val_set = get_focal_stack_loaders(args, train_transform,
valid_transform)
elif args.lfformat is 'stack':
train_set, val_set = get_stacked_lf_loaders(args, train_transform,
valid_transform)
print('=> {} samples found in {} train scenes'.format(
len(train_set), len(train_set.scenes)))
print('=> {} samples found in {} valid scenes'.format(
len(val_set), len(val_set.scenes)))
# Create batch loader
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
# Pull first example from dataset to check number of channels
input_channels = train_set[0][1].shape[0]
args.epoch_size = len(train_loader)
print("=> Using {} input channels, {} total batches".format(
input_channels, args.epoch_size))
# create model
print("=> Creating models")
disp_net = models.LFDispNet(in_channels=input_channels).to(torch_device)
output_exp = args.mask_loss_weight > 0
pose_exp_net = models.LFPoseNet(in_channels=input_channels,
nb_ref_imgs=args.sequence_length -
1).to(torch_device)
# Load or initialize weights
if args.pretrained_exp_pose:
print("=> Using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_exp_pose)
pose_exp_net.load_state_dict(weights['state_dict'], strict=False)
else:
pose_exp_net.init_weights()
if args.pretrained_disp:
print("=> Using pre-trained weights for Dispnet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
else:
disp_net.init_weights()
# Set some torch flags
cudnn.benchmark = True
disp_net = torch.nn.DataParallel(disp_net)
pose_exp_net = torch.nn.DataParallel(pose_exp_net)
# Define optimizer
print('=> Setting adam solver')
optim_params = [{
'params': disp_net.parameters(),
'lr': args.lr
}, {
'params': pose_exp_net.parameters(),
'lr': args.lr
}]
optimizer = torch.optim.Adam(optim_params,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
# Logging
with open(os.path.join(save_path, args.log_summary), 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(os.path.join(save_path, args.log_full), 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(
['train_loss', 'photo_loss', 'explainability_loss', 'smooth_loss'])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
# train the network
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(args, train_loader, disp_net, pose_exp_net,
optimizer, args.epoch_size, logger, tb_writer,
n_iter, torch_device)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
# evaluate on validation set
logger.reset_valid_bar()
errors, error_names = validate_without_gt(args, val_loader, disp_net,
pose_exp_net, epoch, logger,
tb_writer, torch_device)
error_string = ', '.join('{} : {:.3f}'.format(name, error)
for name, error in zip(error_names, errors))
logger.valid_writer.write(' * Avg {}'.format(error_string))
# tensorboard logging
for error, name in zip(errors, error_names):
tb_writer.add_scalar(name, error, epoch)
# Up to you to chose the most relevant error to measure your model's performance,
# careful some measures are to maximize (such as a1,a2,a3)
decisive_error = errors[1]
if best_error < 0:
best_error = decisive_error
# remember lowest error and save checkpoint
is_best = decisive_error < best_error
best_error = min(best_error, decisive_error)
save_checkpoint(save_path, {
'epoch': epoch + 1,
'state_dict': disp_net.module.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': pose_exp_net.module.state_dict()
}, is_best)
with open(os.path.join(save_path, args.log_summary), 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([train_loss, decisive_error])
logger.epoch_bar.finish()
def main():
global args, best_photo_loss, n_iter
args = parser.parse_args()
if args.dataset_format == 'stacked':
from datasets.stacked_sequence_folders import SequenceFolder
elif args.dataset_format == 'sequential':
from datasets.sequence_folders import SequenceFolder
save_path = Path('{}epochs{},seq{},b{},lr{},p{},m{},s{}'.format(
args.epochs,
',epochSize' + str(args.epoch_size) if args.epoch_size > 0 else '',
args.sequence_length, args.batch_size, args.lr, args.photo_loss_weight,
args.mask_loss_weight, args.smooth_loss_weight))
timestamp = datetime.datetime.now().strftime("%m-%d-%H:%M")
args.save_path = 'checkpoints' / save_path / timestamp
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
train_writer = SummaryWriter(args.save_path / 'train')
valid_writer = SummaryWriter(args.save_path / 'valid')
output_writers = []
if args.log_output:
for i in range(3):
output_writers.append(
SummaryWriter(args.save_path / 'valid' / str(i)))
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
input_transform = custom_transforms.Compose([
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize
])
print("=> fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(args.data,
transform=input_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length)
val_set = SequenceFolder(args.data,
transform=custom_transforms.Compose([
custom_transforms.ArrayToTensor(), normalize
]),
seed=args.seed,
train=False,
sequence_length=args.sequence_length)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
# create model
print("=> creating model")
disp_net = models.DispNetS().cuda()
output_exp = args.mask_loss_weight > 0
if not output_exp:
print("=> no mask loss, PoseExpnet will only output pose")
pose_exp_net = models.PoseExpNet(
nb_ref_imgs=args.sequence_length - 1,
output_exp=args.mask_loss_weight > 0).cuda()
if args.pretrained_exp_pose:
print("=> using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_exp_pose)
pose_exp_net.load_state_dict(weights['state_dict'], strict=False)
else:
pose_exp_net.init_weights()
if args.pretrained_disp:
print("=> using pre-trained weights for Dispnet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
else:
disp_net.init_weights()
cudnn.benchmark = True
disp_net = torch.nn.DataParallel(disp_net)
pose_exp_net = torch.nn.DataParallel(pose_exp_net)
print('=> setting adam solver')
parameters = chain(disp_net.parameters(), pose_exp_net.parameters())
optimizer = torch.optim.Adam(parameters,
args.lr,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
with open(args.save_path / args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(args.save_path / args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(
['train_loss', 'photo_loss', 'explainability_loss', 'smooth_loss'])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(train_loader, disp_net, pose_exp_net, optimizer,
args.epoch_size, logger, train_writer)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
# evaluate on validation set
logger.reset_valid_bar()
valid_photo_loss, valid_exp_loss, valid_total_loss = validate(
val_loader, disp_net, pose_exp_net, epoch, logger, output_writers)
logger.valid_writer.write(
' * Avg Photo Loss : {:.3f}, Valid Loss : {:.3f}, Total Loss : {:.3f}'
.format(valid_photo_loss, valid_exp_loss, valid_total_loss))
valid_writer.add_scalar(
'photometric_error', valid_photo_loss * 4, n_iter
) # Loss is multiplied by 4 because it's only one scale, instead of 4 during training
valid_writer.add_scalar('explanability_loss', valid_exp_loss * 4,
n_iter)
valid_writer.add_scalar('total_loss', valid_total_loss * 4, n_iter)
if best_photo_loss < 0:
best_photo_loss = valid_photo_loss
# remember lowest error and save checkpoint
is_best = valid_photo_loss < best_photo_loss
best_photo_loss = min(valid_photo_loss, best_photo_loss)
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': disp_net.module.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': pose_exp_net.module.state_dict()
}, is_best)
with open(args.save_path / args.log_summary, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([train_loss, valid_total_loss])
logger.epoch_bar.finish()
def main():
global n_iter
args = parser.parse_args()
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
# custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(),
normalize
])
print("=> fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(
args.data,
transform=train_transform,
seed=args.seed,
ttype=args.ttype,
add_geo=args.geo,
depth_source=args.depth_init,
sequence_length=args.sequence_length,
gt_source='g',
std=args.std_tr,
pose_init=args.pose_init,
dataset="",
get_path=True
)
print('{} samples found in {} train scenes'.format(len(train_set), len(train_set.scenes)))
val_loader = torch.utils.data.DataLoader(
train_set, batch_size=args.batch_size, shuffle=False,
num_workers=args.workers, pin_memory=True)
# create model
print("=> creating model")
pose_net = PoseNet(args.nlabel, args.std_tr, args.std_rot, add_geo_cost=args.geo, depth_augment=False).cuda()
if args.pretrained_dps:
# freeze feature extra layers
# for param in pose_net.feature_extraction.parameters():
# param.requires_grad = False
print("=> using pre-trained weights for DPSNet")
model_dict = pose_net.state_dict()
weights = torch.load(args.pretrained_dps)['state_dict']
pretrained_dict = {k: v for k, v in weights.items() if
k in model_dict and weights[k].shape == model_dict[k].shape}
model_dict.update(pretrained_dict)
pose_net.load_state_dict(model_dict)
else:
pose_net.init_weights()
cudnn.benchmark = True
pose_net = torch.nn.DataParallel(pose_net)
global n_iter
data_time = AverageMeter()
pose_net.eval()
end = time.time()
errors = np.zeros((2, 2, int(np.ceil(len(val_loader)))), np.float32)
with torch.no_grad():
for i, (tgt_img, ref_imgs, ref_poses, intrinsics, intrinsics_inv, tgt_depth, ref_depths,
ref_noise_poses, initial_pose, tgt_path, ref_paths) in enumerate(val_loader):
data_time.update(time.time() - end)
tgt_img_var = Variable(tgt_img.cuda())
ref_imgs_var = [Variable(img.cuda()) for img in ref_imgs]
ref_poses_var = [Variable(pose.cuda()) for pose in ref_poses]
ref_noise_poses_var = [Variable(pose.cuda()) for pose in ref_noise_poses]
initial_pose_var = Variable(initial_pose.cuda())
ref_depths_var = [Variable(dep.cuda()) for dep in ref_depths]
intrinsics_var = Variable(intrinsics.cuda())
intrinsics_inv_var = Variable(intrinsics_inv.cuda())
tgt_depth_var = Variable(tgt_depth.cuda())
pose = torch.cat(ref_poses_var, 1)
noise_pose = torch.cat(ref_noise_poses_var, 1)
pose_norm = torch.norm(noise_pose[:, :, :3, 3], dim=-1, keepdim=True) # b * n* 1
p_angle, p_trans, rot_c, trans_c = pose_net(tgt_img_var, ref_imgs_var, initial_pose_var, noise_pose,
intrinsics_var,
intrinsics_inv_var,
tgt_depth_var,
ref_depths_var, trans_norm=pose_norm)
batch_size = p_angle.shape[0]
p_angle_v = torch.sum(F.softmax(p_angle, dim=1).view(batch_size, -1, 1) * rot_c, dim=1)
p_trans_v = torch.sum(F.softmax(p_trans, dim=1).view(batch_size, -1, 1) * trans_c, dim=1)
p_matrix = Variable(torch.zeros((batch_size, 4, 4)).float()).cuda()
p_matrix[:, 3, 3] = 1
p_matrix[:, :3, :] = torch.cat([angle2matrix(p_angle_v), p_trans_v.unsqueeze(-1)], dim=-1) # 2*3*4
p_rel_pose = torch.ones_like(noise_pose)
for bat in range(batch_size):
path = tgt_path[bat]
dirname = Path.dirname(path)
orig_poses = np.genfromtxt(Path.join(dirname, args.pose_init + "_poses.txt"))
for j in range(len(ref_imgs)):
p_rel_pose[:, j] = torch.matmul(noise_pose[:, j], inv(p_matrix))
seq_num = int(Path.basename(ref_paths[bat][j])[:-4])
orig_poses[seq_num] = p_rel_pose[bat, j, :3, :].data.cpu().numpy().reshape(12, )
p_aa = mat2axangle(p_rel_pose[bat, j, :3, :3].data.cpu().numpy())
gt_aa = mat2axangle(pose[bat, j, :3, :3].data.cpu().numpy(), unit_thresh=1e-2)
n_aa = mat2axangle(noise_pose[bat, j, :3, :3].data.cpu().numpy(), unit_thresh=1e-2)
p_t = p_rel_pose[bat, j, :3, 3].data.cpu().numpy()
gt_t = pose[bat, j, :3, 3].data.cpu().numpy()
n_t = noise_pose[bat, j, :3, 3].data.cpu().numpy()
p_aa = p_aa[0] * p_aa[1]
n_aa = n_aa[0] * n_aa[1]
gt_aa = gt_aa[0] * gt_aa[1]
error = compute_motion_errors(np.concatenate([n_aa, n_t]), np.concatenate([gt_aa, gt_t]), True)
error_p = compute_motion_errors(np.concatenate([p_aa, p_t]), np.concatenate([gt_aa, gt_t]), True)
print("%d n r%.6f, t%.6f" % (i, error[0], error[2]))
print("%d p r%.6f, t%.6f" % (i, error_p[0], error_p[2]))
errors[0, 0, i] += error[0]
errors[0, 1, i] += error[2]
errors[1, 0, i] += error_p[0]
errors[1, 1, i] += error_p[2]
errors[:, :, i] /= len(ref_imgs)
if args.save and not Path.exists(Path.join(dirname, args.save + "_poses.txt")):
np.savetxt(Path.join(dirname, args.save + "_poses.txt"), orig_poses)
mean_error = errors.mean(2)
error_names = ['rot', 'trans']
print("%s Results : " % args.pose_init)
print(
"{:>10}, {:>10}".format(
*error_names))
print("{:10.4f}, {:10.4f}".format(*mean_error[0]))
print("new Results : ")
print(
"{:>10}, {:>10}".format(
*error_names))
print("{:10.4f}, {:10.4f}".format(*mean_error[1]))
def main():
global args
args = parser.parse_args()
args.pretrained_disp = Path(args.pretrained_disp)
args.pretrained_pose = Path(args.pretrained_pose)
# args.pretrained_mask = Path(args.pretrained_mask)
args.pretrained_flow = Path(args.pretrained_flow)
if args.output_dir is not None:
args.output_dir = Path(args.output_dir)
args.output_dir.makedirs_p()
image_dir = args.output_dir / 'images'
gt_dir = args.output_dir / 'gt'
mask_dir = args.output_dir / 'mask'
viz_dir = args.output_dir / 'viz'
image_dir.makedirs_p()
gt_dir.makedirs_p()
mask_dir.makedirs_p()
viz_dir.makedirs_p()
output_writer = SummaryWriter(args.output_dir)
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
flow_loader_h, flow_loader_w = 256, 832
valid_flow_transform = custom_transforms.Compose([
custom_transforms.Scale(h=flow_loader_h, w=flow_loader_w),
custom_transforms.ArrayToTensor(), normalize
])
if args.dataset == "kitti2015":
val_flow_set = ValidationFlow(root=args.kitti_dir,
sequence_length=3,
transform=valid_flow_transform)
val_loader = torch.utils.data.DataLoader(val_flow_set,
batch_size=1,
shuffle=False,
num_workers=2,
pin_memory=True,
drop_last=True)
disp_net = getattr(models, args.dispnet)().cuda()
pose_net = getattr(models, args.posenet)(nb_ref_imgs=2).cuda()
# mask_net = getattr(models, args.masknet)(nb_ref_imgs=4).cuda()
flow_net = getattr(models, args.flownet)(nlevels=args.nlevels).cuda()
dispnet_weights = torch.load(args.pretrained_disp)
posenet_weights = torch.load(args.pretrained_pose)
# masknet_weights = torch.load(args.pretrained_mask)
flownet_weights = torch.load(args.pretrained_flow)
disp_net.load_state_dict(dispnet_weights['state_dict'])
pose_net.load_state_dict(posenet_weights['state_dict'])
flow_net.load_state_dict(flownet_weights['state_dict'])
# mask_net.load_state_dict(masknet_weights['state_dict'])
disp_net.eval()
pose_net.eval()
# mask_net.eval()
flow_net.eval()
error_names = [
'epe_total', 'epe_sp', 'epe_mv', 'Fl', 'epe_total_gt_mask',
'epe_sp_gt_mask', 'epe_mv_gt_mask', 'Fl_gt_mask'
]
errors = AverageMeter(i=len(error_names))
for i, (tgt_img, ref_imgs, intrinsics, intrinsics_inv, flow_gt,
obj_map_gt) in enumerate(tqdm(val_loader)):
tgt_img_var = Variable(tgt_img.cuda(), volatile=True)
ref_imgs_var = [
Variable(img.cuda(), volatile=True) for img in ref_imgs
]
intrinsics_var = Variable(intrinsics.cuda(), volatile=True)
intrinsics_inv_var = Variable(intrinsics_inv.cuda(), volatile=True)
flow_gt_var = Variable(flow_gt.cuda(), volatile=True)
obj_map_gt_var = Variable(obj_map_gt.cuda(), volatile=True)
disp = disp_net(tgt_img_var)
depth = 1 / disp
pose = pose_net(tgt_img_var, ref_imgs_var)
# explainability_mask = mask_net(tgt_img_var, ref_imgs_var)
# print(len(explainability_mask))
if args.flownet == 'Back2Future':
flow_fwd, flow_bwd, _ = flow_net(tgt_img_var, ref_imgs_var)
else:
flow_fwd = flow_net(tgt_img_var, ref_imgs_var[2])
flow_cam = pose2flow(depth.squeeze(1), pose[:, 1], intrinsics_var,
intrinsics_inv_var)
# flow_cam_bwd = pose2flow(depth.squeeze(1), pose[:,1], intrinsics_var, intrinsics_inv_var)
#---------------------------------------------------------------
flows_cam_fwd = [
pose2flow(depth_.squeeze(1), pose[:, 1], intrinsics_var,
intrinsics_inv_var) for depth_ in depth
]
flows_cam_bwd = [
pose2flow(depth_.squeeze(1), pose[:, 0], intrinsics_var,
intrinsics_inv_var) for depth_ in depth
]
flow_fwd_list = []
flow_fwd_list.append(flow_fwd)
flow_bwd_list = []
flow_bwd_list.append(flow_bwd)
rigidity_mask_fwd = consensus_exp_masks(flows_cam_fwd,
flows_cam_bwd,
flow_fwd_list,
flow_bwd_list,
tgt_img_var,
ref_imgs_var[1],
ref_imgs_var[0],
wssim=0.85,
wrig=1.0,
ws=0.1)[0]
del flow_fwd_list
del flow_bwd_list
#--------------------------------------------------------------
#rigidity_mask = 1 - (1-explainability_mask[:,1])*(1-explainability_mask[:,2]).unsqueeze(1) > 0.5
rigidity_mask_census_soft = (flow_cam - flow_fwd).abs() #.normalize()
#rigidity_mask_census_u = rigidity_mask_census_soft[:,0] < args.THRESH
#rigidity_mask_census_v = rigidity_mask_census_soft[:,1] < args.THRESH
#rigidity_mask_census = (rigidity_mask_census_u).type_as(flow_fwd) * (rigidity_mask_census_v).type_as(flow_fwd)
# rigidity_mask_census = ( torch.pow( (torch.pow(rigidity_mask_census_soft[:,0],2) + torch.pow(rigidity_mask_census_soft[:,1] , 2)), 0.5) < args.THRESH ).type_as(flow_fwd)
THRESH_1 = 1
THRESH_2 = 1
rigidity_mask_census = (
(torch.pow(rigidity_mask_census_soft[:, 0], 2) +
torch.pow(rigidity_mask_census_soft[:, 1], 2)) < THRESH_1 *
(flow_cam.pow(2).sum(dim=1) + flow_fwd.pow(2).sum(dim=1)) +
THRESH_2).type_as(flow_fwd)
# rigidity_mask_census = torch.zeros_like(rigidity_mask_census)
rigidity_mask_fwd = torch.zeros_like(rigidity_mask_fwd)
rigidity_mask_combined = 1 - (1 - rigidity_mask_fwd) * (
1 - rigidity_mask_census) #
obj_map_gt_var_expanded = obj_map_gt_var.unsqueeze(1).type_as(flow_fwd)
flow_fwd_non_rigid = (rigidity_mask_combined <= args.THRESH).type_as(
flow_fwd).expand_as(flow_fwd) * flow_fwd
flow_fwd_rigid = (rigidity_mask_combined > args.THRESH
).type_as(flow_cam).expand_as(flow_cam) * flow_cam
total_flow = flow_fwd_rigid + flow_fwd_non_rigid
# rigidity_mask = rigidity_mask.type_as(flow_fwd)
_epe_errors = compute_all_epes(
flow_gt_var, flow_cam, flow_fwd,
torch.zeros_like(rigidity_mask_combined)) + compute_all_epes(
flow_gt_var, flow_cam, flow_fwd, (1 - obj_map_gt_var_expanded))
errors.update(_epe_errors)
tgt_img_np = tgt_img[0].numpy()
rigidity_mask_combined_np = rigidity_mask_combined.cpu().data[0].numpy(
)
gt_mask_np = obj_map_gt[0].numpy()
if args.output_dir is not None:
np.save(image_dir / str(i).zfill(3), tgt_img_np)
np.save(gt_dir / str(i).zfill(3), gt_mask_np)
np.save(mask_dir / str(i).zfill(3), rigidity_mask_combined_np)
if (args.output_dir is not None):
tmp1 = flow_fwd.data[0].permute(1, 2, 0).cpu().numpy()
tmp1 = flow_2_image(tmp1)
scipy.misc.imsave(viz_dir / str(i).zfill(3) + 'flow.png', tmp1)
print("Results")
print("\t {:>10}, {:>10}, {:>10}, {:>6}, {:>10}, {:>10}, {:>10}, {:>10} ".
format(*error_names))
print(
"Errors \t {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}"
.format(*errors.avg))
def main():
global best_error, n_iter, device
args = parse_multiwarp_training_args()
# Some non-optional parameters for training
args.training_output_freq = 100
args.tilesize = 8
save_path = make_save_path(args)
args.save_path = save_path
print("Using device: {}".format(device))
dump_config(save_path, args)
print('\n\n=> Saving checkpoints to {}'.format(save_path))
torch.manual_seed(args.seed) # setting a manual seed for reproducability
tb_writer = SummaryWriter(save_path) # tensorboard summary writer
# Data pre-processing - Just convert arrays to tensor and normalize the data to be largely between 0 and 1
train_transform = valid_transform = custom_transforms.Compose([
custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(mean=0.5, std=0.5)
])
# Create data loader based on the format of the light field
print("=> Fetching scenes in '{}'".format(args.data))
train_set, val_set = None, None
if args.lfformat == 'focalstack':
train_set, val_set = get_focal_stack_loaders(args, train_transform, valid_transform)
elif args.lfformat == 'stack':
is_monocular = False
if len(args.cameras) == 1 and args.cameras[0] == 8 and args.cameras_stacked == "input":
is_monocular = True
train_set, val_set = get_stacked_lf_loaders(args, train_transform, valid_transform, is_monocular=is_monocular)
elif args.lfformat == 'epi':
train_set, val_set = get_epi_loaders(args, train_transform, valid_transform)
print('=> {} samples found in {} train scenes'.format(len(train_set), len(train_set.scenes)))
print('=> {} samples found in {} validation scenes'.format(len(val_set), len(val_set.scenes)))
print('=> Multi-warp training, warping {} sub-apertures'.format(len(args.cameras)))
# Create batch loader
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
output_channels = len(args.cameras) # for multi-warp photometric loss, we request as many depth values as the cameras used
args.epoch_size = len(train_loader)
# Create models
print("=> Creating models")
if args.lfformat == "epi":
print("=> Using EPI encoders")
if args.cameras_epi == "vertical":
disp_encoder = models.EpiEncoder('vertical', args.tilesize).to(device)
pose_encoder = models.RelativeEpiEncoder('vertical', args.tilesize).to(device)
dispnet_input_channels = 16 + len(args.cameras) # 16 is the number of output channels of the encoder
posenet_input_channels = 16 + len(args.cameras) # 16 is the number of output channels of the encoder
elif args.cameras_epi == "horizontal":
disp_encoder = models.EpiEncoder('horizontal', args.tilesize).to(device)
pose_encoder = models.RelativeEpiEncoder('horizontal', args.tilesize).to(device)
dispnet_input_channels = 16 + len(args.cameras) # 16 is the number of output channels of the encoder
posenet_input_channels = 16 + len(args.cameras) # 16 is the number of output channels of the encoder
elif args.cameras_epi == "full":
disp_encoder = models.EpiEncoder('full', args.tilesize).to(device)
pose_encoder = models.RelativeEpiEncoder('full', args.tilesize).to(device)
if args.without_disp_stack:
dispnet_input_channels = 32 # 16 is the number of output channels of each encoder
else:
dispnet_input_channels = 32 + 5 # 16 is the number of output channels of each encoder, 5 from stack
posenet_input_channels = 32 + 5 # 16 is the number of output channels of each encoder
else:
raise ValueError("Incorrect cameras epi format")
else:
disp_encoder = None
pose_encoder = None
# for stack lfformat channels = num_cameras * num_colour_channels
# for focalstack lfformat channels = num_focal_planes * num_colour_channels
dispnet_input_channels = posenet_input_channels = train_set[0]['tgt_lf_formatted'].shape[0]
disp_net = models.LFDispNet(in_channels=dispnet_input_channels,
out_channels=output_channels, encoder=disp_encoder).to(device)
pose_net = models.LFPoseNet(in_channels=posenet_input_channels,
nb_ref_imgs=args.sequence_length - 1, encoder=pose_encoder).to(device)
print("=> [DispNet] Using {} input channels, {} output channels".format(dispnet_input_channels, output_channels))
print("=> [PoseNet] Using {} input channels".format(posenet_input_channels))
if args.pretrained_exp_pose:
print("=> [PoseNet] Using pre-trained weights for pose net")
weights = torch.load(args.pretrained_exp_pose)
pose_net.load_state_dict(weights['state_dict'], strict=False)
else:
print("=> [PoseNet] training from scratch")
pose_net.init_weights()
if args.pretrained_disp:
print("=> [DispNet] Using pre-trained weights for DispNet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
else:
print("=> [DispNet] training from scratch")
disp_net.init_weights()
# this flag tells CUDNN to find the optimal set of algorithms for this specific input data size, which improves
# runtime efficiency, but takes a while to load in the beginning.
cudnn.benchmark = True
# disp_net = torch.nn.DataParallel(disp_net)
# pose_net = torch.nn.DataParallel(pose_net)
print('=> Setting adam solver')
optim_params = [
{'params': disp_net.parameters(), 'lr': args.lr},
{'params': pose_net.parameters(), 'lr': args.lr}
]
optimizer = torch.optim.Adam(optim_params, betas=(args.momentum, args.beta), weight_decay=args.weight_decay)
lr_scheduler = torch.optim.lr_scheduler.StepLR(optimizer, step_size=50, gamma=0.5)
with open(save_path + "/" + args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(save_path + "/" + args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'photo_loss', 'smooth_loss', 'pose_loss'])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
w1 = torch.tensor(args.photo_loss_weight, dtype=torch.float32, device=device, requires_grad=True)
# w2 = torch.tensor(args.mask_loss_weight, dtype=torch.float32, device=device, requires_grad=True)
w3 = torch.tensor(args.smooth_loss_weight, dtype=torch.float32, device=device, requires_grad=True)
# w4 = torch.tensor(args.gt_pose_loss_weight, dtype=torch.float32, device=device, requires_grad=True)
# add some constant parameters to the log for easy visualization
tb_writer.add_scalar(tag="batch_size", scalar_value=args.batch_size)
# tb_writer.add_scalar(tag="mask_loss_weight", scalar_value=args.mask_loss_weight) # this is not used
# tb_writer.add_scalar(tag="gt_pose_loss_weight", scalar_value=args.gt_pose_loss_weight)
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(args, train_loader, disp_net, pose_net, optimizer, args.epoch_size, logger, tb_writer, w1, w3)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
# evaluate on validation set
logger.reset_valid_bar()
errors, error_names = validate_without_gt(args, val_loader, disp_net, pose_net, epoch, logger, tb_writer, w1, w3)
error_string = ', '.join('{} : {:.3f}'.format(name, error) for name, error in zip(error_names, errors))
logger.valid_writer.write(' * Avg {}'.format(error_string))
# update the learning rate (annealing)
lr_scheduler.step()
# add the learning rate to the tensorboard logging
tb_writer.add_scalar(tag="learning_rate", scalar_value=lr_scheduler.get_last_lr()[0], global_step=epoch)
tb_writer.add_scalar(tag="photometric_loss_weight", scalar_value=w1, global_step=epoch)
tb_writer.add_scalar(tag="smooth_loss_weight", scalar_value=w3, global_step=epoch)
# add validation errors to the tensorboard logging
for error, name in zip(errors, error_names):
tb_writer.add_scalar(tag=name, scalar_value=error, global_step=epoch)
decisive_error = errors[2]
if best_error < 0:
best_error = decisive_error
# remember lowest error and save checkpoint
is_best = decisive_error < best_error
best_error = min(best_error, decisive_error)
save_checkpoint(save_path, {'epoch': epoch + 1, 'state_dict': disp_net.state_dict()},
{'epoch': epoch + 1, 'state_dict': pose_net.state_dict()}, is_best)
# save a checkpoint every 20 epochs anyway
if epoch % 20 == 0:
save_checkpoint_current(save_path, {'epoch': epoch + 1, 'state_dict': disp_net.state_dict()},
{'epoch': epoch + 1, 'state_dict': pose_net.state_dict()}, epoch)
with open(save_path + "/" + args.log_summary, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([train_loss, decisive_error])
logger.epoch_bar.finish()
def prepare_environment():
env = {}
args = parser.parse_args()
if args.dataset_format == 'KITTI':
from datasets.shifted_sequence_folders import ShiftedSequenceFolder
elif args.dataset_format == 'StillBox':
from datasets.shifted_sequence_folders import StillBox as ShiftedSequenceFolder
elif args.dataset_format == 'TUM':
from datasets.shifted_sequence_folders import TUM as ShiftedSequenceFolder
save_path = save_path_formatter(args, parser)
args.save_path = 'checkpoints' / save_path
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
args.test_batch_size = 4 * args.batch_size
if args.evaluate:
args.epochs = 0
env['training_writer'] = SummaryWriter(args.save_path)
output_writers = []
if args.log_output:
for i in range(3):
output_writers.append(
SummaryWriter(args.save_path / 'valid' / str(i)))
env['output_writers'] = output_writers
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
# custom_transforms.RandomHorizontalFlip(),
custom_transforms.ArrayToTensor(),
normalize
])
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
print("=> fetching scenes in '{}'".format(args.data))
train_set = ShiftedSequenceFolder(args.data,
transform=train_transform,
seed=args.seed,
train=True,
with_depth_gt=False,
with_pose_gt=args.supervise_pose,
sequence_length=args.sequence_length)
val_set = ShiftedSequenceFolder(args.data,
transform=valid_transform,
seed=args.seed,
train=False,
sequence_length=args.sequence_length,
with_depth_gt=args.with_gt,
with_pose_gt=args.with_gt)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=4 * args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
env['train_set'] = train_set
env['val_set'] = val_set
env['train_loader'] = train_loader
env['val_loader'] = val_loader
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
# create model
print("=> creating model")
pose_net = models.PoseNet(seq_length=args.sequence_length,
batch_norm=args.bn in ['pose',
'both']).to(device)
if args.pretrained_pose:
print("=> using pre-trained weights for pose net")
weights = torch.load(args.pretrained_pose)
pose_net.load_state_dict(weights['state_dict'], strict=False)
depth_net = models.DepthNet(depth_activation="elu",
batch_norm=args.bn in ['depth',
'both']).to(device)
if args.pretrained_depth:
print("=> using pre-trained DepthNet model")
data = torch.load(args.pretrained_depth)
depth_net.load_state_dict(data['state_dict'])
cudnn.benchmark = True
depth_net = torch.nn.DataParallel(depth_net)
pose_net = torch.nn.DataParallel(pose_net)
env['depth_net'] = depth_net
env['pose_net'] = pose_net
print('=> setting adam solver')
optim_params = [{
'params': depth_net.parameters(),
'lr': args.lr
}, {
'params': pose_net.parameters(),
'lr': args.lr
}]
# parameters = chain(depth_net.parameters(), pose_exp_net.parameters())
optimizer = torch.optim.Adam(optim_params,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
scheduler = torch.optim.lr_scheduler.StepLR(optimizer,
args.lr_decay_frequency,
gamma=0.5)
env['optimizer'] = optimizer
env['scheduler'] = scheduler
with open(args.save_path / args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(args.save_path / args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(
['train_loss', 'photo_loss', 'explainability_loss', 'smooth_loss'])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
env['logger'] = logger
env['args'] = args
return env
def main():
global best_error, n_iter, device
args = parser.parse_args()
save_path = make_save_path(args)
args.save_path = save_path
dump_config(save_path, args)
print('=> Saving checkpoints to {}'.format(save_path))
torch.manual_seed(args.seed)
tb_writer = SummaryWriter(save_path)
# Data preprocessing
train_transform = valid_transform = custom_transforms.Compose([
custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
])
# Create dataloader
print("=> Fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(
args.data,
gray=args.gray,
cameras=args.cameras,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length
)
val_set = SequenceFolder(
args.data,
gray=args.gray,
cameras=args.cameras,
transform=valid_transform,
seed=args.seed,
train=False,
sequence_length=args.sequence_length,
shuffle=False
)
print('=> {} samples found in {} train scenes'.format(len(train_set), len(train_set.scenes)))
print('=> {} samples found in {} valid scenes'.format(len(val_set), len(val_set.scenes)))
# Create batch loader
train_loader = torch.utils.data.DataLoader(train_set, batch_size=args.batch_size, shuffle=True, num_workers=args.workers, pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set, batch_size=args.batch_size, shuffle=False, num_workers=args.workers, pin_memory=True)
# Pull first example from dataset to check number of channels
input_channels = train_set[0][1].shape[0]
args.epoch_size = len(train_loader)
print("=> Using {} input channels, {} total batches".format(input_channels, args.epoch_size))
# create model
print("=> Creating models")
pose_exp_net = models.LFPoseNet(in_channels=input_channels, nb_ref_imgs=args.sequence_length - 1, output_exp=args.mask_loss_weight > 0).to(device)
if args.pretrained_exp_pose:
print("=> Using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_exp_pose)
pose_exp_net.load_state_dict(weights['state_dict'], strict=False)
else:
pose_exp_net.init_weights()
cudnn.benchmark = True
pose_exp_net = torch.nn.DataParallel(pose_exp_net)
print('=> Setting adam solver')
optim_params = [
{'params': pose_exp_net.parameters(), 'lr': args.lr}
]
optimizer = torch.optim.Adam(optim_params, betas=(args.momentum, args.beta), weight_decay=args.weight_decay)
with open(save_path + "/" + args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
logger = TermLogger(n_epochs=args.epochs, train_size=min(len(train_loader), args.epoch_size), valid_size=len(val_loader))
logger.epoch_bar.start()
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(args, train_loader, pose_exp_net, optimizer, args.epoch_size, logger, tb_writer)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
# evaluate on validation set
logger.reset_valid_bar()
valid_loss = validate(args, val_loader, pose_exp_net, logger, tb_writer)
if valid_loss < best_error or best_error < 0:
best_error = valid_loss
checkpoint = {
"epoch": epoch + 1,
"state_dict": pose_exp_net.module.state_dict()
}
torch.save(checkpoint, save_path + "/" + 'posenet_best.pth.tar')
torch.save(checkpoint, save_path + "/" + 'posenet_checkpoint.pth.tar')
logger.epoch_bar.finish()
def main():
global args, best_error, n_iter
args = parser.parse_args()
save_path = Path(args.name)
args.save_path = 'checkpoints' / save_path
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
# custom_transforms.RandomRotate(),
# custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(),
normalize
])
training_writer = SummaryWriter(args.save_path)
intrinsics = np.array(
[542.822841, 0, 315.593520, 0, 542.576870, 237.756098, 0, 0,
1]).astype(np.float32).reshape((3, 3))
train_set = SequenceFolder(root=args.dataset_dir,
intrinsics=intrinsics,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
print("=> creating model")
mask_net = MaskResNet6.MaskResNet6().cuda()
pose_net = PoseNetB6.PoseNetB6().cuda()
mask_net = torch.nn.DataParallel(mask_net)
pose_net = torch.nn.DataParallel(pose_net)
if args.pretrained_mask:
print("=> using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_mask)
mask_net.load_state_dict(weights['state_dict'], False)
else:
mask_net.init_weights()
if args.pretrained_pose:
print("=> using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_pose)
pose_net.load_state_dict(weights['state_dict'], False)
else:
pose_net.init_weights()
print('=> setting adam solver')
parameters = chain(mask_net.parameters(), pose_net.parameters())
optimizer = torch.optim.Adam(parameters,
args.lr,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
# training
best_error = 100001
train_loss = 100000
for epoch in tqdm(range(args.epochs)):
train_loss = train(train_loader, mask_net, pose_net, optimizer,
args.epoch_size, training_writer)
is_best = train_loss < best_error
best_error = min(best_error, train_loss)
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': mask_net.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': optimizer.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': pose_net.state_dict()
}, is_best)
def main():
global best_error, n_iter, device
args = parser.parse_args()
if args.dataset_format == 'stacked':
from datasets.stacked_sequence_folders import SequenceFolder
elif args.dataset_format == 'sequential':
from datasets.sequence_folders import SequenceFolder
save_path = save_path_formatter(args, parser)
args.save_path = 'checkpoints' / save_path
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
if args.evaluate:
args.epochs = 0
tb_writer = SummaryWriter(args.save_path)
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize
])
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
print("=> fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(args.data,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length)
# if no Groundtruth is avalaible, Validation set is the same type as training set to measure photometric loss from warping
if args.with_gt:
from datasets.validation_folders import ValidationSet
val_set = ValidationSet(args.data, transform=valid_transform)
else:
val_set = SequenceFolder(
args.data,
transform=valid_transform,
seed=args.seed,
train=False,
sequence_length=args.sequence_length,
)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
# create model
print("=> creating model")
disp_net = models.DispNetS().to(device)
seg_net = DeepLab(num_classes=args.nclass,
backbone=args.backbone,
output_stride=args.out_stride,
sync_bn=args.sync_bn,
freeze_bn=args.freeze_bn).to(device)
if args.pretrained_seg:
print("=> using pre-trained weights for seg net")
weights = torch.load(args.pretrained_seg)
seg_net.load_state_dict(weights, strict=False)
output_exp = args.mask_loss_weight > 0
if not output_exp:
print("=> no mask loss, PoseExpnet will only output pose")
pose_exp_net = models.PoseExpNet(
nb_ref_imgs=args.sequence_length - 1,
output_exp=args.mask_loss_weight > 0).to(device)
if args.pretrained_exp_pose:
print("=> using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_exp_pose)
pose_exp_net.load_state_dict(weights['state_dict'], strict=False)
else:
pose_exp_net.init_weights()
if args.pretrained_disp:
print("=> using pre-trained weights for Dispnet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
else:
disp_net.init_weights()
cudnn.benchmark = True
disp_net = torch.nn.DataParallel(disp_net)
pose_exp_net = torch.nn.DataParallel(pose_exp_net)
seg_net = torch.nn.DataParallel(seg_net)
print('=> setting adam solver')
optim_params = [{
'params': disp_net.parameters(),
'lr': args.lr
}, {
'params': pose_exp_net.parameters(),
'lr': args.lr
}]
optimizer = torch.optim.Adam(optim_params,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
with open(args.save_path / args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(args.save_path / args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(
['train_loss', 'photo_loss', 'explainability_loss', 'smooth_loss'])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
if args.pretrained_disp or args.evaluate:
logger.reset_valid_bar()
if args.with_gt:
errors, error_names = validate_with_gt(args, val_loader, disp_net,
0, logger, tb_writer)
else:
errors, error_names = validate_without_gt(args, val_loader,
disp_net, pose_exp_net,
0, logger, tb_writer)
for error, name in zip(errors, error_names):
tb_writer.add_scalar(name, error, 0)
error_string = ', '.join(
'{} : {:.3f}'.format(name, error)
for name, error in zip(error_names[2:9], errors[2:9]))
logger.valid_writer.write(' * Avg {}'.format(error_string))
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(args, train_loader, disp_net, pose_exp_net, seg_net,
optimizer, args.epoch_size, logger, tb_writer)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
# evaluate on validation set
logger.reset_valid_bar()
if args.with_gt:
errors, error_names = validate_with_gt(args, val_loader, disp_net,
seg_net, epoch, logger,
tb_writer)
else:
errors, error_names = validate_without_gt(args, val_loader,
disp_net, pose_exp_net,
epoch, logger, tb_writer)
error_string = ', '.join('{} : {:.3f}'.format(name, error)
for name, error in zip(error_names, errors))
logger.valid_writer.write(' * Avg {}'.format(error_string))
for error, name in zip(errors, error_names):
tb_writer.add_scalar(name, error, epoch)
# Up to you to chose the most relevant error to measure your model's performance, careful some measures are to maximize (such as a1,a2,a3)
decisive_error = errors[1]
if best_error < 0:
best_error = decisive_error
# remember lowest error and save checkpoint
is_best = decisive_error < best_error
best_error = min(best_error, decisive_error)
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': disp_net.module.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': pose_exp_net.module.state_dict()
}, is_best)
with open(args.save_path / args.log_summary, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([train_loss, decisive_error])
logger.epoch_bar.finish()
def main(args):
# parse args
best_acc1 = 0.0
if args.gpu >= 0:
torch.cuda.set_device(args.gpu)
print("Use GPU: {}".format(args.gpu))
else:
print('You are using CPU for computing!',
'Yet we assume you are using a GPU.',
'You will NOT be able to switch between CPU and GPU training!')
# fix the random seeds (the best we can)
fixed_random_seed = 2019
torch.manual_seed(fixed_random_seed)
np.random.seed(fixed_random_seed)
random.seed(fixed_random_seed)
# set up the model + loss
if args.use_custom_conv:
print("Using custom convolutions in the network")
model = default_model(conv_op=CustomConv2d, num_classes=100)
elif args.use_resnet18:
model = torchvision.models.resnet18(pretrained=True)
model.fc = nn.Linear(512, 100)
elif args.use_adv_training:
model = AdvSimpleNet(num_classes=100)
else:
model = default_model(num_classes=100)
model_arch = "simplenet"
criterion = nn.CrossEntropyLoss()
# put everthing to gpu
if args.gpu >= 0:
model = model.cuda(args.gpu)
criterion = criterion.cuda(args.gpu)
# setup the optimizer
optimizer = torch.optim.SGD(model.parameters(), args.lr,
momentum=args.momentum,
weight_decay=args.weight_decay)
# resume from a checkpoint?
if args.resume:
if os.path.isfile(args.resume):
print("=> loading checkpoint '{}'".format(args.resume))
checkpoint = torch.load(args.resume)
args.start_epoch = checkpoint['epoch']
best_acc1 = checkpoint['best_acc1']
model.load_state_dict(checkpoint['state_dict'])
if args.gpu < 0:
model = model.cpu()
else:
model = model.cuda(args.gpu)
# only load the optimizer if necessary
if (not args.evaluate) and (not args.attack):
optimizer.load_state_dict(checkpoint['optimizer'])
print("=> loaded checkpoint '{}' (epoch {}, acc1 {})"
.format(args.resume, checkpoint['epoch'], best_acc1))
else:
print("=> no checkpoint found at '{}'".format(args.resume))
# set up transforms for data augmentation
normalize = transforms.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225])
train_transforms = get_train_transforms(normalize)
# val transofrms
val_transforms=[]
val_transforms.append(transforms.Scale(160, interpolations=None))
val_transforms.append(transforms.ToTensor())
val_transforms.append(normalize)
val_transforms = transforms.Compose(val_transforms)
if (not args.evaluate) and (not args.attack):
print("Training time data augmentations:")
print(train_transforms)
# setup dataset and dataloader
train_dataset = MiniPlacesLoader(args.data_folder,
split='train', transforms=train_transforms)
val_dataset = MiniPlacesLoader(args.data_folder,
split='val', transforms=val_transforms)
train_loader = torch.utils.data.DataLoader(
train_dataset, batch_size=args.batch_size, shuffle=True,
num_workers=args.workers, pin_memory=True, sampler=None, drop_last=True)
val_loader = torch.utils.data.DataLoader(
val_dataset, batch_size=100, shuffle=False,
num_workers=args.workers, pin_memory=True, sampler=None, drop_last=False)
# testing only
if (args.evaluate==args.attack) and args.evaluate:
print("Cann't set evaluate and attack to True at the same time!")
return
# set up visualizer
if args.vis:
visualizer = default_attention(criterion)
else:
visualizer = None
# evaluation
if args.resume and args.evaluate:
print("Testing the model ...")
cudnn.deterministic = True
validate(val_loader, model, -1, args, visualizer=visualizer)
return
# attack
if args.resume and args.attack:
print("Generating adversarial samples for the model ..")
cudnn.deterministic = True
validate(val_loader, model, -1, args,
attacker=default_attack(criterion),
visualizer=visualizer)
return
# enable cudnn benchmark
cudnn.enabled = True
cudnn.benchmark = True
# warmup the training
if (args.start_epoch == 0) and (args.warmup_epochs > 0):
print("Warmup the training ...")
for epoch in range(0, args.warmup_epochs):
train(train_loader, model, criterion, optimizer, epoch, "warmup", args)
# start the training
print("Training the model ...")
for epoch in range(args.start_epoch, args.epochs):
# train for one epoch
train(train_loader, model, criterion, optimizer, epoch, "train", args)
# evaluate on validation set
acc1 = validate(val_loader, model, epoch, args)
# remember best acc@1 and save checkpoint
is_best = acc1 > best_acc1
best_acc1 = max(acc1, best_acc1)
save_checkpoint({
'epoch': epoch + 1,
'model_arch': model_arch,
'state_dict': model.state_dict(),
'best_acc1': best_acc1,
'optimizer' : optimizer.state_dict(),
}, is_best)
def main():
global opt, best_prec1
opt = parser.parse_args()
print(opt)
# Data loading
train_transform = custom_transforms.Compose([
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
])
valid_transform = custom_transforms.Compose([
custom_transforms.ArrayToTensor(),
custom_transforms.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5])
])
print('Loading scenes in', opt.data_dir)
train_set = SequenceFolder(opt.data_dir,
transform=train_transform,
seed=opt.seed,
train=True,
sequence_length=opt.sequence_length)
val_set = ValidationSet(opt.data_dir, transform=valid_transform)
print(len(train_set), 'samples found')
print(len(val_set), 'samples found')
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=opt.batch_size,
shuffle=True,
num_workers=opt.workers,
pin_memory=True)
# val_loader = torch.utils.data.DataLoader(val_set, batch_size=opt.batch_size,
# shuffle=False, num_workers=opt.workers,
# pin_memory=True)
if opt.epoch == 0:
opt.epoch_size = len(train_loader)
# Done loading
disp_model = dispnet.DispNet().cuda()
pose_model = posenet.PoseNet().cuda()
disp_model, pose_model, optimizer = init.setup(disp_model, pose_model, opt)
print(disp_model, pose_model)
trainer = train.Trainer(disp_model, pose_model, optimizer, opt)
if opt.resume:
if os.path.isfile(opt.resume):
# disp_model, pose_model, optimizer, opt, best_prec1 = init.resumer(opt, disp_model, pose_model, optimizer)
disp_model, pose_model, optimizer, opt = init.resumer(
opt, disp_model, pose_model, optimizer)
else:
print("=> no checkpoint found at '{}'".format(opt.resume))
cudnn.benchmark = True
for epoch in range(opt.start_epoch, opt.epochs):
utils.adjust_learning_rate(opt, optimizer, epoch)
print("Starting epoch number:", epoch + 1, "Learning rate:",
optimizer.param_groups[0]["lr"])
if opt.testOnly == False:
trainer.train(train_loader, epoch, opt)
# init.save_checkpoint(opt, disp_model, pose_model, optimizer, best_prec1, epoch)
init.save_checkpoint(opt, disp_model, pose_model, optimizer, epoch)
def main():
global args, best_error, n_iter, device
args = parser.parse_args()
save_path = save_path_formatter(args, parser)
args.save_path = 'checkpoints_shifted' / save_path
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
training_writer = SummaryWriter(args.save_path)
output_writers = []
if args.log_output:
for i in range(3):
output_writers.append(
SummaryWriter(args.save_path / 'valid' / str(i)))
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
train_transform = custom_transforms.Compose([
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize
])
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
print("=> fetching scenes in '{}'".format(args.data))
train_set = ShiftedSequenceFolder(
args.data,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length,
target_displacement=args.target_displacement)
# if no Groundtruth is avalaible, Validation set is the same type as training set to measure photometric loss from warping
if args.with_gt:
from datasets.validation_folders import ValidationSet
val_set = ValidationSet(args.data, transform=valid_transform)
else:
val_set = SequenceFolder(
args.data,
transform=valid_transform,
seed=args.seed,
train=False,
sequence_length=args.sequence_length,
)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
adjust_loader = torch.utils.data.DataLoader(
train_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=0,
pin_memory=True
) # workers is set to 0 to avoid multiple instances to be modified at the same time
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
train.args = args
# create model
print("=> creating model")
disp_net = models.DispNetS().cuda()
output_exp = args.mask_loss_weight > 0
if not output_exp:
print("=> no mask loss, PoseExpnet will only output pose")
pose_exp_net = models.PoseExpNet(
nb_ref_imgs=args.sequence_length - 1,
output_exp=args.mask_loss_weight > 0).to(device)
if args.pretrained_exp_pose:
print("=> using pre-trained weights for explainabilty and pose net")
weights = torch.load(args.pretrained_exp_pose)
pose_exp_net.load_state_dict(weights['state_dict'], strict=False)
else:
pose_exp_net.init_weights()
if args.pretrained_disp:
print("=> using pre-trained weights for Dispnet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'])
else:
disp_net.init_weights()
cudnn.benchmark = True
disp_net = torch.nn.DataParallel(disp_net)
pose_exp_net = torch.nn.DataParallel(pose_exp_net)
print('=> setting adam solver')
parameters = chain(disp_net.parameters(), pose_exp_net.parameters())
optimizer = torch.optim.Adam(parameters,
args.lr,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
with open(args.save_path / args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(args.save_path / args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(
['train_loss', 'photo_loss', 'explainability_loss', 'smooth_loss'])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(args, train_loader, disp_net, pose_exp_net,
optimizer, args.epoch_size, logger, training_writer)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
if (epoch + 1) % 5 == 0:
train_set.adjust = True
logger.reset_train_bar(len(adjust_loader))
average_shifts = adjust_shifts(args, train_set, adjust_loader,
pose_exp_net, epoch, logger,
training_writer)
shifts_string = ' '.join(
['{:.3f}'.format(s) for s in average_shifts])
logger.train_writer.write(
' * adjusted shifts, average shifts are now : {}'.format(
shifts_string))
for i, shift in enumerate(average_shifts):
training_writer.add_scalar('shifts{}'.format(i), shift, epoch)
train_set.adjust = False
# evaluate on validation set
logger.reset_valid_bar()
if args.with_gt:
errors, error_names = validate_with_gt(args, val_loader, disp_net,
epoch, logger,
output_writers)
else:
errors, error_names = validate_without_gt(args, val_loader,
disp_net, pose_exp_net,
epoch, logger,
output_writers)
error_string = ', '.join('{} : {:.3f}'.format(name, error)
for name, error in zip(error_names, errors))
logger.valid_writer.write(' * Avg {}'.format(error_string))
for error, name in zip(errors, error_names):
training_writer.add_scalar(name, error, epoch)
# Up to you to chose the most relevant error to measure your model's performance, careful some measures are to maximize (such as a1,a2,a3)
decisive_error = errors[0]
if best_error < 0:
best_error = decisive_error
# remember lowest error and save checkpoint
is_best = decisive_error < best_error
best_error = min(best_error, decisive_error)
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': disp_net.module.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': pose_exp_net.module.state_dict()
}, is_best)
with open(args.save_path / args.log_summary, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([train_loss, decisive_error])
logger.epoch_bar.finish()
def main():
global args
args = parser.parse_args()
args.pretrained_disp = Path(args.pretrained_disp)
args.pretrained_pose = Path(args.pretrained_pose)
args.pretrained_mask = Path(args.pretrained_mask)
args.pretrained_flow = Path(args.pretrained_flow)
if args.output_dir is not None:
args.output_dir = Path(args.output_dir)
args.output_dir.makedirs_p()
image_dir = args.output_dir / 'images'
gt_dir = args.output_dir / 'gt'
mask_dir = args.output_dir / 'mask'
viz_dir = args.output_dir / 'viz'
image_dir.makedirs_p()
gt_dir.makedirs_p()
mask_dir.makedirs_p()
viz_dir.makedirs_p()
output_writer = SummaryWriter(args.output_dir)
normalize = custom_transforms.Normalize(mean=[0.5, 0.5, 0.5],
std=[0.5, 0.5, 0.5])
flow_loader_h, flow_loader_w = 256, 832
valid_flow_transform = custom_transforms.Compose([
custom_transforms.Scale(h=flow_loader_h, w=flow_loader_w),
custom_transforms.ArrayToTensor(), normalize
])
if args.dataset == "kitti2015":
val_flow_set = ValidationFlow(root=args.kitti_dir,
sequence_length=5,
transform=valid_flow_transform)
val_loader = torch.utils.data.DataLoader(val_flow_set,
batch_size=1,
shuffle=False,
num_workers=2,
pin_memory=True,
drop_last=True)
disp_net = getattr(models, args.dispnet)().cuda()
pose_net = getattr(models, args.posenet)(nb_ref_imgs=4).cuda()
mask_net = getattr(models, args.masknet)(nb_ref_imgs=4).cuda()
flow_net = getattr(models, args.flownet)(nlevels=args.nlevels).cuda()
dispnet_weights = torch.load(args.pretrained_disp)
posenet_weights = torch.load(args.pretrained_pose)
masknet_weights = torch.load(args.pretrained_mask)
flownet_weights = torch.load(args.pretrained_flow)
disp_net.load_state_dict(dispnet_weights['state_dict'])
pose_net.load_state_dict(posenet_weights['state_dict'])
flow_net.load_state_dict(flownet_weights['state_dict'])
mask_net.load_state_dict(masknet_weights['state_dict'])
disp_net.eval()
pose_net.eval()
mask_net.eval()
flow_net.eval()
error_names = [
'epe_total', 'epe_sp', 'epe_mv', 'Fl', 'epe_total_gt_mask',
'epe_sp_gt_mask', 'epe_mv_gt_mask', 'Fl_gt_mask'
]
errors = AverageMeter(i=len(error_names))
for i, (tgt_img, ref_imgs, intrinsics, intrinsics_inv, flow_gt,
obj_map_gt) in enumerate(tqdm(val_loader)):
tgt_img_var = Variable(tgt_img.cuda(), volatile=True)
ref_imgs_var = [
Variable(img.cuda(), volatile=True) for img in ref_imgs
]
intrinsics_var = Variable(intrinsics.cuda(), volatile=True)
intrinsics_inv_var = Variable(intrinsics_inv.cuda(), volatile=True)
flow_gt_var = Variable(flow_gt.cuda(), volatile=True)
obj_map_gt_var = Variable(obj_map_gt.cuda(), volatile=True)
disp = disp_net(tgt_img_var)
depth = 1 / disp
pose = pose_net(tgt_img_var, ref_imgs_var)
explainability_mask = mask_net(tgt_img_var, ref_imgs_var)
if args.flownet == 'Back2Future':
flow_fwd, flow_bwd, _ = flow_net(tgt_img_var, ref_imgs_var[1:3])
else:
flow_fwd = flow_net(tgt_img_var, ref_imgs_var[2])
flow_cam = pose2flow(depth.squeeze(1), pose[:, 2], intrinsics_var,
intrinsics_inv_var)
flow_cam_bwd = pose2flow(depth.squeeze(1), pose[:, 1], intrinsics_var,
intrinsics_inv_var)
rigidity_mask = 1 - (1 - explainability_mask[:, 1]) * (
1 - explainability_mask[:, 2]).unsqueeze(1) > 0.5
rigidity_mask_census_soft = (flow_cam - flow_fwd).abs() #.normalize()
rigidity_mask_census_u = rigidity_mask_census_soft[:, 0] < args.THRESH
rigidity_mask_census_v = rigidity_mask_census_soft[:, 1] < args.THRESH
rigidity_mask_census = (rigidity_mask_census_u).type_as(flow_fwd) * (
rigidity_mask_census_v).type_as(flow_fwd)
rigidity_mask_combined = 1 - (
1 - rigidity_mask.type_as(explainability_mask)) * (
1 - rigidity_mask_census.type_as(explainability_mask))
obj_map_gt_var_expanded = obj_map_gt_var.unsqueeze(1).type_as(flow_fwd)
flow_fwd_non_rigid = (rigidity_mask_combined <= args.THRESH).type_as(
flow_fwd).expand_as(flow_fwd) * flow_fwd
flow_fwd_rigid = (rigidity_mask_combined > args.THRESH
).type_as(flow_cam).expand_as(flow_cam) * flow_cam
total_flow = flow_fwd_rigid + flow_fwd_non_rigid
rigidity_mask = rigidity_mask.type_as(flow_fwd)
_epe_errors = compute_all_epes(
flow_gt_var, flow_cam,
flow_fwd, rigidity_mask_combined) + compute_all_epes(
flow_gt_var, flow_cam, flow_fwd, (1 - obj_map_gt_var_expanded))
errors.update(_epe_errors)
tgt_img_np = tgt_img[0].numpy()
rigidity_mask_combined_np = rigidity_mask_combined.cpu().data[0].numpy(
)
gt_mask_np = obj_map_gt[0].numpy()
if args.output_dir is not None:
np.save(image_dir / str(i).zfill(3), tgt_img_np)
np.save(gt_dir / str(i).zfill(3), gt_mask_np)
np.save(mask_dir / str(i).zfill(3), rigidity_mask_combined_np)
if (args.output_dir is not None) and i % 10 == 0:
ind = int(i // 10)
output_writer.add_image(
'val Dispnet Output Normalized',
tensor2array(disp.data[0].cpu(),
max_value=None,
colormap='bone'), ind)
output_writer.add_image('val Input',
tensor2array(tgt_img[0].cpu()), i)
output_writer.add_image(
'val Total Flow Output',
flow_to_image(tensor2array(total_flow.data[0].cpu())), ind)
output_writer.add_image(
'val Rigid Flow Output',
flow_to_image(tensor2array(flow_fwd_rigid.data[0].cpu())), ind)
output_writer.add_image(
'val Non-rigid Flow Output',
flow_to_image(tensor2array(flow_fwd_non_rigid.data[0].cpu())),
ind)
output_writer.add_image(
'val Rigidity Mask',
tensor2array(rigidity_mask.data[0].cpu(),
max_value=1,
colormap='bone'), ind)
output_writer.add_image(
'val Rigidity Mask Census',
tensor2array(rigidity_mask_census.data[0].cpu(),
max_value=1,
colormap='bone'), ind)
output_writer.add_image(
'val Rigidity Mask Combined',
tensor2array(rigidity_mask_combined.data[0].cpu(),
max_value=1,
colormap='bone'), ind)
tgt_img_viz = tensor2array(tgt_img[0].cpu())
depth_viz = tensor2array(disp.data[0].cpu(),
max_value=None,
colormap='bone')
mask_viz = tensor2array(
rigidity_mask_census_soft.data[0].prod(dim=0).cpu(),
max_value=1,
colormap='bone')
rigid_flow_viz = flow_to_image(tensor2array(
flow_cam.data[0].cpu()))
non_rigid_flow_viz = flow_to_image(
tensor2array(flow_fwd_non_rigid.data[0].cpu()))
total_flow_viz = flow_to_image(
tensor2array(total_flow.data[0].cpu()))
row1_viz = np.hstack((tgt_img_viz, depth_viz, mask_viz))
row2_viz = np.hstack(
(rigid_flow_viz, non_rigid_flow_viz, total_flow_viz))
row1_viz_im = Image.fromarray((255 * row1_viz).astype('uint8'))
row2_viz_im = Image.fromarray((row2_viz).astype('uint8'))
row1_viz_im.save(viz_dir / str(i).zfill(3) + '01.png')
row2_viz_im.save(viz_dir / str(i).zfill(3) + '02.png')
print("Results")
print("\t {:>10}, {:>10}, {:>10}, {:>6}, {:>10}, {:>10}, {:>10}, {:>10} ".
format(*error_names))
print(
"Errors \t {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}, {:10.4f}"
.format(*errors.avg))
def main():
global args, best_error, n_iter
args = parser.parse_args()
save_path = Path(args.name)
args.save_path = 'checkpoints' / save_path #/timestamp
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
training_writer = SummaryWriter(args.save_path)
output_writer = SummaryWriter(args.save_path / 'valid')
# Data loading code
flow_loader_h, flow_loader_w = 384, 1280
train_transform = custom_transforms.Compose([
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(h=256, w=256),
custom_transforms.ArrayToTensor(),
])
valid_transform = custom_transforms.Compose([
custom_transforms.Scale(h=flow_loader_h, w=flow_loader_w),
custom_transforms.ArrayToTensor()
])
print("=> fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(args.data,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=3)
if args.valset == "kitti2015":
from datasets.validation_flow import ValidationFlowKitti2015
val_set = ValidationFlowKitti2015(root=args.kitti_data,
transform=valid_transform)
elif args.valset == "kitti2012":
from datasets.validation_flow import ValidationFlowKitti2012
val_set = ValidationFlowKitti2012(root=args.kitti_data,
transform=valid_transform)
if args.DEBUG:
train_set.__len__ = 32
train_set.samples = train_set.samples[:32]
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in valid scenes'.format(len(val_set)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=1,
shuffle=True,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
val_loader = torch.utils.data.DataLoader(
val_set,
batch_size=
1, # batch size is 1 since images in kitti have different sizes
shuffle=False,
num_workers=args.workers,
pin_memory=True,
drop_last=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
# create model
print("=> creating model")
if args.flownet == 'SpyNet':
flow_net = getattr(models, args.flownet)(nlevels=6, pretrained=True)
elif args.flownet == 'Back2Future':
flow_net = getattr(
models, args.flownet)(pretrained='pretrained/b2f_rm_hard.pth.tar')
elif args.flownet == 'PWCNet':
flow_net = models.pwc_dc_net(
'pretrained/pwc_net_chairs.pth.tar') # pwc_net.pth.tar')
else:
flow_net = getattr(models, args.flownet)()
if args.flownet in ['SpyNet', 'Back2Future', 'PWCNet']:
print("=> using pre-trained weights for " + args.flownet)
elif args.flownet in ['FlowNetC']:
print("=> using pre-trained weights for FlowNetC")
weights = torch.load('pretrained/FlowNet2-C_checkpoint.pth.tar')
flow_net.load_state_dict(weights['state_dict'])
elif args.flownet in ['FlowNetS']:
print("=> using pre-trained weights for FlowNetS")
weights = torch.load('pretrained/flownets.pth.tar')
flow_net.load_state_dict(weights['state_dict'])
elif args.flownet in ['FlowNet2']:
print("=> using pre-trained weights for FlowNet2")
weights = torch.load('pretrained/FlowNet2_checkpoint.pth.tar')
flow_net.load_state_dict(weights['state_dict'])
else:
flow_net.init_weights()
pytorch_total_params = sum(p.numel() for p in flow_net.parameters())
print("Number of model paramters: " + str(pytorch_total_params))
flow_net = flow_net.cuda()
cudnn.benchmark = True
if args.patch_type == 'circle':
patch, mask, patch_shape = init_patch_circle(args.image_size,
args.patch_size)
patch_init = patch.copy()
elif args.patch_type == 'square':
patch, patch_shape = init_patch_square(args.image_size,
args.patch_size)
patch_init = patch.copy()
mask = np.ones(patch_shape)
else:
sys.exit("Please choose a square or circle patch")
if args.patch_path:
patch, mask, patch_shape = init_patch_from_image(
args.patch_path, args.mask_path, args.image_size, args.patch_size)
patch_init = patch.copy()
if args.log_terminal:
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader),
attack_size=args.max_count)
logger.epoch_bar.start()
else:
logger = None
for epoch in range(args.epochs):
if args.log_terminal:
logger.epoch_bar.update(epoch)
logger.reset_train_bar()
# train for one epoch
patch, mask, patch_init, patch_shape = train(patch, mask, patch_init,
patch_shape, train_loader,
flow_net, epoch, logger,
training_writer)
# Validate
errors, error_names = validate_flow_with_gt(patch, mask, patch_shape,
val_loader, flow_net,
epoch, logger,
output_writer)
error_string = ', '.join('{} : {:.3f}'.format(name, error)
for name, error in zip(error_names, errors))
#
if args.log_terminal:
logger.valid_writer.write(' * Avg {}'.format(error_string))
else:
print('Epoch {} completed'.format(epoch))
for error, name in zip(errors, error_names):
training_writer.add_scalar(name, error, epoch)
torch.save(patch, args.save_path / 'patch_epoch_{}'.format(str(epoch)))
if args.log_terminal:
logger.epoch_bar.finish()
def main():
global best_error, n_iter, device
args = parser.parse_args()
timestamp = datetime.datetime.now().strftime("%m-%d-%H:%M")
save_path = Path(args.name)
args.save_path = 'checkpoints' / save_path / timestamp
print('=> will save everything to {}'.format(args.save_path))
args.save_path.makedirs_p()
torch.manual_seed(args.seed)
np.random.seed(args.seed)
cudnn.deterministic = True
cudnn.benchmark = True
training_writer = SummaryWriter(args.save_path)
output_writers = []
if args.log_output:
for i in range(3):
output_writers.append(
SummaryWriter(args.save_path / 'valid' / str(i)))
# Data loading code
normalize = custom_transforms.Normalize(mean=[0.45, 0.45, 0.45],
std=[0.225, 0.225, 0.225])
train_transform = custom_transforms.Compose([
custom_transforms.RandomHorizontalFlip(),
custom_transforms.RandomScaleCrop(),
custom_transforms.ArrayToTensor(), normalize
])
valid_transform = custom_transforms.Compose(
[custom_transforms.ArrayToTensor(), normalize])
print("=> fetching scenes in '{}'".format(args.data))
train_set = SequenceFolder(args.data,
transform=train_transform,
seed=args.seed,
train=True,
sequence_length=args.sequence_length)
# if no Groundtruth is avalaible, Validation set is the same type as training set to measure photometric loss from warping
if args.with_gt:
from datasets.validation_folders import ValidationSet
val_set = ValidationSet(args.data, transform=valid_transform)
else:
val_set = SequenceFolder(args.data,
transform=valid_transform,
seed=args.seed,
train=False,
sequence_length=args.sequence_length)
print('{} samples found in {} train scenes'.format(len(train_set),
len(train_set.scenes)))
print('{} samples found in {} valid scenes'.format(len(val_set),
len(val_set.scenes)))
train_loader = torch.utils.data.DataLoader(train_set,
batch_size=args.batch_size,
shuffle=True,
num_workers=args.workers,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(val_set,
batch_size=args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
if args.epoch_size == 0:
args.epoch_size = len(train_loader)
# create model
print("=> creating model")
disp_net = models.DispResNet(args.resnet_layers,
args.with_pretrain).to(device)
pose_net = models.PoseResNet(18, args.with_pretrain).to(device)
# load parameters
if args.pretrained_disp:
print("=> using pre-trained weights for DispResNet")
weights = torch.load(args.pretrained_disp)
disp_net.load_state_dict(weights['state_dict'], strict=False)
if args.pretrained_pose:
print("=> using pre-trained weights for PoseResNet")
weights = torch.load(args.pretrained_pose)
pose_net.load_state_dict(weights['state_dict'], strict=False)
disp_net = torch.nn.DataParallel(disp_net)
pose_net = torch.nn.DataParallel(pose_net)
print('=> setting adam solver')
optim_params = [{
'params': disp_net.parameters(),
'lr': args.lr
}, {
'params': pose_net.parameters(),
'lr': args.lr
}]
optimizer = torch.optim.Adam(optim_params,
betas=(args.momentum, args.beta),
weight_decay=args.weight_decay)
with open(args.save_path / args.log_summary, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow(['train_loss', 'validation_loss'])
with open(args.save_path / args.log_full, 'w') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([
'train_loss', 'photo_loss', 'smooth_loss',
'geometry_consistency_loss'
])
logger = TermLogger(n_epochs=args.epochs,
train_size=min(len(train_loader), args.epoch_size),
valid_size=len(val_loader))
logger.epoch_bar.start()
for epoch in range(args.epochs):
logger.epoch_bar.update(epoch)
# train for one epoch
logger.reset_train_bar()
train_loss = train(args, train_loader, disp_net, pose_net, optimizer,
args.epoch_size, logger, training_writer)
logger.train_writer.write(' * Avg Loss : {:.3f}'.format(train_loss))
# evaluate on validation set
logger.reset_valid_bar()
if args.with_gt:
errors, error_names = validate_with_gt(args, val_loader, disp_net,
epoch, logger,
output_writers)
else:
errors, error_names = validate_without_gt(args, val_loader,
disp_net, pose_net,
epoch, logger,
output_writers)
error_string = ', '.join('{} : {:.3f}'.format(name, error)
for name, error in zip(error_names, errors))
logger.valid_writer.write(' * Avg {}'.format(error_string))
for error, name in zip(errors, error_names):
training_writer.add_scalar(name, error, epoch)
# Up to you to chose the most relevant error to measure your model's performance, careful some measures are to maximize (such as a1,a2,a3)
decisive_error = errors[1]
if best_error < 0:
best_error = decisive_error
# remember lowest error and save checkpoint
is_best = decisive_error < best_error
best_error = min(best_error, decisive_error)
save_checkpoint(args.save_path, {
'epoch': epoch + 1,
'state_dict': disp_net.module.state_dict()
}, {
'epoch': epoch + 1,
'state_dict': pose_net.module.state_dict()
}, is_best)
with open(args.save_path / args.log_summary, 'a') as csvfile:
writer = csv.writer(csvfile, delimiter='\t')
writer.writerow([train_loss, decisive_error])
logger.epoch_bar.finish()
