def forward(self, pointcloud: torch.cuda.FloatTensor, return_all=False):
pointcloud = pointcloud.transpose(1, 2).contiguous()
li_xyz, li_features = self._break_up_pc(pointcloud)
# B,C,N
# l_xyz, l_features = [xyz], [li_features]
l_xyz, l_features = [], []
for i in range(len(self.SA_modules)):
# Pointnetmodule + MLP + maxpool
li_xyz, li_features = self.SA_modules[i](li_xyz, li_features)
li_features_post = self.postSA_mlp[i](li_features)
l_xyz.append(li_xyz)
l_features.append(li_features_post)
# max pool (B,4*#SA,1) all SAmodules
# exclude the first None features
global_code = torch.cat(
[torch.max(l_feat, dim=-1)[0] for l_feat in l_features], dim=1)
l_features.append(global_code)
l_xyz.append(None)
if return_all:
return l_features, l_xyz
else:
return global_code
def copy_torch2glumpy(dst: gloo.VertexBuffer, src: torch.cuda.FloatTensor):
# torch 2 pycuda
src = gp.GPUArray(src.shape, np.float32, gpudata=src.data_ptr())
# copy pycuda 2 glumpy
copy_pycuda2glumpy(dst, src)
return
def acc_segmentation(input: torch.cuda.FloatTensor,
targs: torch.cuda.IntTensor,
rm_bknd=True):
"""The intent of this metric is to have a metric where it's easy to understand the implications of the value it outputs since the output value of mAP IoU is more difficult to understand intuitively."""
_n = targs.shape[0]
input = input.argmax(dim=1).view(_n, -1)
targs = targs.view(_n, -1)
return (input == targs).float().mean()
def copy_torch2RegisteredBuffer(dst: pycuda.gl.RegisteredBuffer,
src: torch.cuda.FloatTensor):
# torch 2 pycuda
src = gp.GPUArray(src.shape, np.float32, gpudata=src.data_ptr())
# copy pycuda 2 glumpy
copy_pycuda2RegisteredBuffer(dst, src)
return
def forward(self, pointcloud: torch.cuda.FloatTensor):
r"""
Forward pass of the network
Parameters
----------
pointcloud: Variable(torch.cuda.FloatTensor)
(B, N, 3 + input_channels) tensor
Point cloud to run predicts on
Each point in the point-cloud MUST
be formated as (x, y, z, features...)
"""
pointcloud = pointcloud.transpose(1, 2)
xyz, features = self._break_up_pc(pointcloud)
cls = torch.zeros(pointcloud.size(0), 16).cuda()
l_xyz, l_features = [xyz], [features]
for i in range(len(self.SA_modules)):
if i < 5:
li_xyz, li_features = self.SA_modules[i](l_xyz[i],
l_features[i])
if li_xyz is not None:
random_index = np.arange(li_xyz.size()[1])
np.random.shuffle(random_index)
li_xyz = li_xyz[:, random_index, :]
li_features = li_features[:, :, random_index]
l_xyz.append(li_xyz)
l_features.append(li_features)
_, global_out2_feat = self.SA_modules[5](l_xyz[3], l_features[3])
for i in range(-1, -(len(self.FP_modules) + 1), -1):
l_features[i - 1 - 1] = self.FP_modules[i](l_xyz[i - 1 - 1],
l_xyz[i - 1],
l_features[i - 1 - 1],
l_features[i - 1])
cls = cls.view(-1, 16, 1).repeat(
1, 1, l_features[0].size()[2]) # object class one-hot-vector
l_features[0] = torch.cat(
(l_features[0], l_features[-1].repeat(1, 1,
l_features[0].size()[2]),
global_out2_feat.repeat(1, 1, l_features[0].size()[2]), cls), 1)
return self.FC_layer(l_features[0]).transpose(1, 2).contiguous()
def forward(self, pc: torch.cuda.FloatTensor,
normal: torch.cuda.FloatTensor):
"""
pc shape: (B, N, 3 + input_channels)
formatted as (x, y, z, features...)
"""
xyz = pc[..., 0:3].contiguous()
if pc.size(-1) > 3:
features = pc[..., 3:].transpose(1, 2).contiguous()
else:
features = None
for module in self.SA_modules:
xyz, normal, features = module(xyz, normal, features)
return self.FC_layer(features.squeeze(-1))
def forward(self, pointcloud: torch.cuda.FloatTensor):
r"""
Forward pass of the network
Parameters
----------
pointcloud: Variable(torch.cuda.FloatTensor)
(B, N, 3 + input_channels) tensor
Point cloud to run predicts on
Each point in the point-cloud MUST
be formated as (x, y, z, features...)
"""
pointcloud = pointcloud.transpose(1, 2)
xyz, features = self._break_up_pc(pointcloud)
for module in self.SA_modules:
xyz, features = module(xyz, features)
logits = self.FC_layer(features.squeeze(-1))
#print(logits)
return logits, None
def forward(self, pointcloud: torch.cuda.FloatTensor):
r"""
Forward pass of the network
Parameters
----------
pointcloud: Variable(torch.cuda.FloatTensor)
(B, N, 3 + input_channels) tensor
Point cloud to run predicts on
Each point in the point-cloud MUST
be formated as (x, y, z, features...)
"""
batch_size = pointcloud.size(0)
xyz, features = self._break_up_pc(pointcloud)
l_xyz, l_features = [xyz], [features]
combined = [xyz]
for i in range(len(self.SA_modules)):
# print(i,'-l_xyz shape:', l_xyz[i].shape)
# print(i,'-l_feature shape:', l_features[i].shape)
li_xyz, li_features = self.SA_modules[i](l_xyz[i], l_features[i])
l_xyz.append(li_xyz)
l_features.append(li_features)
combined.append(li_xyz)
# combined.append(li_features.max(dim=-1, keepdim=False)[0])
# print('here!!!', torch.cat((l_xyz + l_features), dim=1).shape)
combined = torch.cat(combined, dim=1)
combined = self.conv(combined)
c1 = F.adaptive_max_pool1d(combined, 1).view(batch_size, -1)
c2 = F.adaptive_avg_pool1d(combined, 1).view(batch_size, -1)
combined = torch.cat((c1, c2), 1)
combined = self.dp1(
F.leaky_relu(self.bn1(self.linear1(combined)), negative_slope=0.2))
combined = self.dp2(
F.leaky_relu(self.bn2(self.linear2(combined)), negative_slope=0.2))
combined = self.linear3(combined)
# combined = self.linear4(c1)
return combined
def forward(self,
pointcloud: torch.cuda.FloatTensor,
center_points: torch.cuda.FloatTensor,
cue_points: torch.cuda.FloatTensor,
matching: torch.cuda.FloatTensor,
matching_sem: torch.cuda.FloatTensor,
floor_height: torch.cuda.FloatTensor,
end_points=None,
mode=''):
r"""
Forward pass of the network
Parameters
----------
pointcloud: Variable(torch.cuda.FloatTensor)
(B, N, 3 + input_feature_dim) tensor
Point cloud to run predicts on
Each point in the point-cloud MUST
be formated as (x, y, z, features...)
Returns
----------
end_points: {XXX_xyz, XXX_features, XXX_inds}
XXX_xyz: float32 Tensor of shape (B,K,3)
XXX_features: float32 Tensor of shape (B,K,D)
XXX-inds: int64 Tensor of shape (B,K) values in [0,N-1]
"""
if not end_points: end_points = {}
batch_size = pointcloud.shape[0]
xyz, features = self._break_up_pc(pointcloud)
end_points['sa0_xyz' + mode] = xyz
end_points['sa0_features' + mode] = features
#center_points = end_points['center_points']
#cue_points = end_points['cue_points']#.view(batch_size, -1, 3).float()
obj_points = torch.cat((center_points, cue_points), dim=1)
#center_matching = torch.max(matching.view(batch_size, 18, 256), dim=1)[0]
center_matching = end_points['match_center']
center_sem = torch.cuda.FloatTensor(
batch_size, 256,
18).zero_() ### Need to change to config sem later
center_sem.scatter_(
2, matching_sem[:, :256].unsqueeze(-1),
1) # src==1 so it's *one-hot* (B,K,num_size_cluster)
cue_sem = torch.cuda.FloatTensor(batch_size, 256 * 18, 18).zero_()
cue_sem.scatter_(2, matching_sem[:, 256:].unsqueeze(-1),
1) # src==1 so it's *one-hot* (B,K,num_size_cluster)
center_feature = torch.cat(
((center_points[:, :, 2] -
floor_height.unsqueeze(-1)).unsqueeze(1),
center_matching.unsqueeze(1), center_sem.transpose(
2, 1).contiguous()),
dim=1) ### Need to make the floor height an option
cue_feature = torch.cat(
((cue_points[:, :, 2] - floor_height.unsqueeze(-1)).unsqueeze(1),
matching.unsqueeze(1), cue_sem.transpose(2, 1).contiguous()),
dim=1)
other_features = torch.cat(
(features,
torch.cuda.FloatTensor(batch_size, 19,
features.shape[-1]).zero_()),
dim=1)
features = torch.cat((center_feature, cue_feature, other_features),
dim=2)
#features = torch.cat((cue_feature, other_features), dim=2)
# --------- 4 SET ABSTRACTION LAYERS ---------
### Concatenate the
#xyz, features, fps_inds = self.sa1(obj_points, xyz, features, inds=end_points['sa1_inds'])
xyz, features, fps_inds = self.sa1(obj_points, xyz, features)
end_points['sa1_inds' + mode] = fps_inds
end_points['sa1_xyz' + mode] = xyz
end_points['sa1_features' + mode] = features
#xyz, features, fps_inds = self.sa2(xyz[:,:256*18,:].contiguous(), xyz[:,256*18:,:].contiguous(), features) # this fps_inds is just 0,1,...,1023
xyz, features, fps_inds = self.sa2(
xyz[:, :256 * 19, :].contiguous(),
xyz[:, 256 * 19:, :].contiguous(),
features,
inds=end_points['sa2_inds']) # this fps_inds is just 0,1,...,1023
end_points['sa2_inds' + mode] = fps_inds
end_points['sa2_xyz' + mode] = xyz
end_points['sa2_features' + mode] = features
### Append the surface and line info here
'''
center_ind = torch.cuda.FloatTensor(batch_size, 4, 256).zero_()
center_ind[:,0,:] = 1.0
surfacez_ind = torch.cuda.FloatTensor(batch_size, 4, 256*2).zero_()
surfacez_ind[:,1,:] = 1.0
surfacexy_ind = torch.cuda.FloatTensor(batch_size, 4, 256*4).zero_()
surfacexy_ind[:,2,:] = 1.0
line_ind = torch.cuda.FloatTensor(batch_size, 4, 256*12).zero_()
line_ind[:,3,:] = 1.0
cue_ind = torch.cat((torch.cuda.FloatTensor(batch_size, 1, 1024).zero_(), end_points["pred_z_ind"].unsqueeze(1), end_points["pred_xy_ind"].unsqueeze(1), end_points["pred_line_ind"].unsqueeze(1)), dim=1)
ind_feature = torch.cat((center_ind, surfacez_ind, surfacexy_ind, line_ind, cue_ind), dim=2)
features = torch.cat((features, ind_feature), dim=1)
'''
#xyz, features, fps_inds = self.sa3(xyz[:,:256*18,:].contiguous(), xyz[:,256*18:,:].contiguous(), features) # this fps_inds is just 0,1,...,1023
xyz, features, fps_inds = self.sa3(
xyz[:, :256 * 19, :].contiguous(),
xyz[:, 256 * 19:, :].contiguous(),
features,
inds=end_points['sa3_inds']) # this fps_inds is just 0,1,...,1023
end_points['sa3_inds' + mode] = fps_inds
end_points['sa3_xyz' + mode] = xyz
end_points['sa3_features' + mode] = features
#xyz, features, fps_inds = self.sa4(xyz[:,:256*18,:].contiguous(), xyz[:,256*18:,:].contiguous(), features) # this fps_inds is just 0,1,...,1023
xyz, features, fps_inds = self.sa4(
xyz[:, :256 * 19, :].contiguous(),
xyz[:, 256 * 19:, :].contiguous(),
features,
inds=end_points['sa4_inds']) # this fps_inds is just 0,1,...,1023
end_points['sa4_inds' + mode] = fps_inds
end_points['sa4_xyz' + mode] = xyz
end_points['sa4_features' + mode] = features
# --------- 2 FEATURE UPSAMPLING LAYERS --------
#features = self.fp1(end_points['sa3_xyz'+mode], end_points['sa4_xyz'+mode], end_points['sa3_features'+mode], end_points['sa4_features'+mode])
#features = self.fp2(end_points['sa2_xyz'+mode], end_points['sa3_xyz'+mode], end_points['sa2_features'+mode], features)
features = self.fp1(
end_points['sa3_xyz' + mode],
end_points['sa4_xyz' + mode][:, 256 * 19:, :].contiguous(),
end_points['sa3_features' + mode],
end_points['sa4_features' + mode][:, :, 256 * 19:].contiguous())
features = self.fp2(
end_points['sa2_xyz' + mode][:, :256 * 19, :].contiguous(),
end_points['sa3_xyz' + mode][:, 256 * 19:, :].contiguous(),
end_points['sa2_features' + mode][:, :, :256 * 19].contiguous(),
features[:, :, 256 * 19:].contiguous())
end_points['fp2_features' + mode] = features
end_points['fp2_xyz' + mode] = end_points['sa2_xyz' +
mode][:, :256 *
19, :].contiguous()
num_seed = end_points['fp2_xyz' + mode].shape[1]
end_points['fp2_inds' + mode] = end_points[
'sa1_inds' +
mode][:, 0:num_seed] # indices among the entire input point clouds
return end_points
def mAP_IoU(preds: torch.cuda.FloatTensor,
targs: torch.cuda.IntTensor,
thresholds: list,
num_tot_classes: int,
bknd_idx: int = None,
max_workers: int = 1,
rm_bknd=True,
fast_hist2d: bool = False,
sparsify: bool = False):
"""Segmentation: calculates the IoU-based precision at a specified IoU threshold (t)
{ TP(t) / ( TP(t) + FP(t) + FN(t) ) } for a single image."""
#----------------------------------------------------------------------------#
_fmin = 1e-9
if rm_bknd:
if not isinstance(bknd_idx, int):
raise Exception(
'If removing background is desired, please specify index of backround in preds.'
)
# The following catches whether there will be division by 0 further below:
if not (min(thresholds) > _fmin and max(thresholds) < 1 - _fmin):
raise Exception(
'Minimum specified threshold must be > 1e-9 and maximum specified threshold must be < (1 - 1e-9).'
)
if bknd_idx != 0:
warnings.warn( 'Warning: To maintain consistency across segmentation models, please make `bknd_idx` be equal ' + \
'to index number 0.' )
first_idx = False
else:
first_idx = True
#----------------------------------------------------------------------------#
# TODO: Implement fast np.bincount/np.unique/etc. to get num classes for targs and preds
num_classes_IU = _ if fast_hist2d else (
num_tot_classes,
num_tot_classes,
)
#----------------------------------------------------------------------------#
_preds_flat_np = preds.view(
-1,
preds.size()[-2] * preds.size()[-1]).cpu().numpy().astype(np.int32)
_targs_flat_np = targs.view(
-1,
targs.size()[-2] * targs.size()[-1]).cpu().numpy().astype(np.int32)
#----------------------------------------------------------------------------#
# TODO: Implement CUDA (GPU Parallel Computing) version of histogram2d
histogram2d_async = partial( np.histogram2d, bins = num_classes_IU, \
range = np.array( [[-0.5, num_classes_IU[0] - .5], [-0.5, num_classes_IU[1] - .5]] ) )
intersections = parallel_map_func_re(histogram2d_async,
np.stack((
_targs_flat_np,
_preds_flat_np,
),
axis=0),
max_workers=max_workers)
intersections = torch.stack( tuple( \
torch.from_numpy( intersection[0] ).to( device = DEFAULT_DEVICE, dtype = torch.float64 ) for \
intersection in intersections ) )
#----------------------------------------------------------------------------#
# TODO: Implement CUDA (GPU Parallel Computing) version of histogram
# Calculate Union. First calculate areas (needed for finding the union between all objects).
# Shape : (true_objects, pred_objects)
bincount1d_preds_async = partial(np.bincount, minlength=num_classes_IU[0])
area_preds = parallel_map_func_re(bincount1d_preds_async, [_preds_flat_np],
max_workers=max_workers)
area_preds = torch.stack( tuple( \
torch.from_numpy( area_pred ).to( device = DEFAULT_DEVICE, dtype = torch.float64 ) for \
area_pred in area_preds ) )
bincount1d_trues_async = partial(np.bincount, minlength=num_classes_IU[0])
area_trues = parallel_map_func_re(bincount1d_trues_async, [_targs_flat_np],
max_workers=max_workers)
area_trues = torch.stack( tuple( \
torch.from_numpy( area_true ).to( device = DEFAULT_DEVICE, dtype = torch.float64 ) for \
area_true in area_trues ) )
area_preds.unsqueeze_(-1)
area_trues.unsqueeze_(-2)
unions = area_trues + area_preds - intersections # subtract intersection to remove double-countings
#----------------------------------------------------------------------------#
## Exclude background from the analysis if rm_bknd == True
if rm_bknd:
if first_idx:
intersections = intersections[:, 1:, 1:]
unions = unions[:, 1:, 1:]
else:
intersections = torch.cat((
intersections[:, :, :bknd_idx],
intersections[:, :, bknd_idx + 1:],
))
intersections = torch.cat((
intersections[:, :bknd_idx, :],
intersections[:, bknd_idx + 1:, :],
))
unions = torch.cat((
unions[:, :, :bknd_idx],
unions[:, :, bknd_idx + 1:],
))
unions = torch.cat((
unions[:, :bknd_idx, :],
unions[:, bknd_idx + 1:, :],
))
unions[unions == 0] = _fmin
# Calculate the Intersection over Union (IoU) for all preds labels-targs labels pairs
iou = torch.div(intersections, unions)
# print( iou.shape )
# iou_sparse = coo_matrix( iou.ravel('C'), \
# (true_obj_coords.ravel('C'), pred_obj_coords.ravel('C')), shape = (num_tot_classes, num_tot_classes) ).tocsc()
if sparsify:
iou = torch.sparse.FloatTensor(iou, device=DEFAULT_DEVICE)
# Calculate the inverse Identity Matrix (needed to compute FP and FN). Shape : (num_tot_classes, num_tot_classes)
_inv_eye = torch.abs( \
torch.eye( iou.shape[-2], iou.shape[-1], dtype = torch.int8 ) - 1 ) \
.to( device = DEFAULT_DEVICE, dtype = torch.uint8 )
_inv_eye.unsqueeze_(0)
# Loop over IoU thresholds
prec = torch.empty(targs.shape[0],
len(thresholds),
dtype=torch.float64,
device=DEFAULT_DEVICE)
for n, t in enumerate(thresholds):
tp, fp, fn = precision_at(iou, t, _inv_eye)
_prec_n = tp / (tp + fp + fn)
_prec_n[_prec_n != _prec_n] = 0.
prec[:, n] = _prec_n
return prec.mean()
def accuracy(input: torch.cuda.FloatTensor, targs: torch.cuda.LongTensor):
_n = targs.shape[0]
input = input.argmax(dim=1).view(_n, -1)
targs = targs.view(_n, -1)
return (input == targs).float().mean()
def forward(self, pc: torch.cuda.FloatTensor,
normal: torch.cuda.FloatTensor, cls):
"""
pc shape: (B, N, 3 + input_channels)
formatted as (x, y, z, features...)
"""
xyz = pc[..., 0:3].contiguous()
if pc.size(-1) > 3:
features = pc[..., 3:].transpose(1, 2).contiguous()
else:
features = None
l_xyz, l_features = [xyz], [features]
for i in range(len(self.SA_modules)):
if i < 5:
if i < 4:
li_xyz, normal, li_features = self.SA_modules[i](
l_xyz[i], normal, l_features[i])
else:
li_xyz, normal, li_features = self.SA_modules[i](
l_xyz[i], None, l_features[i])
if li_xyz is not None:
random_index = np.arange(li_xyz.size()[1])
np.random.shuffle(random_index)
li_xyz = li_xyz[:, random_index, :]
li_features = li_features[:, :, random_index]
l_xyz.append(li_xyz)
l_features.append(li_features)
# filter the added relative pose
# for i in range(len(l_features)):
# li_features = l_features[i]
# if li_features is None:
# continue
# if li_features.shape[1] == 201:
# l_features[i] = torch.cat([li_features[:, 3:67,:], li_features[:, 70:134,:], li_features[:, 137:,:]], dim=1)
# if li_features.shape[1] == 393:
# l_features[i] = torch.cat([li_features[:, 3:131,:], li_features[:, 134:262,:], li_features[:, 265:,:]], dim=1)
# if li_features.shape[1] == 777:
# l_features[i] = torch.cat([li_features[:, 3:259,:], li_features[:, 262:518,:], li_features[:, 521:,:]], dim=1)
for i in range(4):
li_features = l_features[i]
if li_features is None:
continue
l = li_features.shape[1] // self.scale_num
fts = []
for j in range(self.scale_num):
fts.append(li_features[:, 3 + j * l:l * (j + 1), :])
l_features[i] = torch.cat(fts, dim=1)
_, _, global_out2_feat = self.SA_modules[5](l_xyz[3], None,
l_features[3])
for i in range(-1, -(len(self.FP_modules) + 1), -1):
l_features[i - 1 - 1] = self.FP_modules[i](l_xyz[i - 1 - 1],
l_xyz[i - 1],
l_features[i - 1 - 1],
l_features[i - 1])
cls = cls.view(-1, 16, 1).repeat(
1, 1, l_features[0].size()[2]) # object class one-hot-vector
l_features[0] = torch.cat(
(l_features[0], l_features[-1].repeat(1, 1,
l_features[0].size()[2]),
global_out2_feat.repeat(1, 1, l_features[0].size()[2]), cls), 1)
return self.FC_layer(l_features[0]).transpose(1, 2).contiguous()