def compute_loss_selfReconstruction(self, network):
rot_matrix = self.rot_matrix.cuda().float().transpose(2,
1).contiguous()
P4 = self.P3.bmm(rot_matrix).detach()
scale = torch.rand(P4.size(0), 1,
3).cuda() - 0.5 # uniform sampling -0.5, 0.5
P4 = P4 + scale * P4 # Anisotropic scaling
P3 = self.P3.transpose(2, 1).contiguous()
P4 = P4.transpose(2, 1).contiguous()
P4_P3 = network(P3, P4) # forward pass
P3_P4 = network(P4, P3) # forward pass
self.loss_train_selfReconstruction_L2 = (1 / 2.0) * (
loss.L2(P4_P3, P4) + loss.L2(P3_P4, P3))
def test_iteration(self):
self.couple.separate_points_normal_labels()
batchs = self.couple.P1.size(0)
self.couple.add_P2P1(*loss.forward_chamfer(self.network, self.couple.P1, self.couple.P2, local_fix=self.fix,
distChamfer=self.distChamfer))
loss_val_Deformation_ChamferL2 = loss.chamferL2(self.couple.dist1_P2_P1, self.couple.dist2_P2_P1)
loss_val_Reconstruction_L2 = loss.L2(self.couple.P2_P1, self.couple.P2)
self.log.update("loss_val_Deformation_ChamferL2", loss_val_Deformation_ChamferL2)
self.log.update("loss_val_Reconstruction_L2", loss_val_Reconstruction_L2)
print(
'\r' + colored('[%d: %d/%d]' % (self.epoch, self.iteration, self.len_dataset_test / (self.opt.batch_size)),
'red') +
colored('loss_val_Deformation_ChamferL2: %f' % loss_val_Deformation_ChamferL2.item(), 'yellow'),
end='')
if self.iteration % 60 == 1 and self.opt.display:
self.visualizer.show_pointclouds(points=self.couple.P2[0], Y=self.couple.label2[0], title="val_B")
self.visualizer.show_pointclouds(points=self.couple.P1[0], Y=self.couple.label1[0], title="val_A")
self.visualizer.show_pointclouds(points=self.couple.P2_P1[0], Y=self.couple.label1[0],
title="val_B_reconstructed")
# Compute Miou when labels are tranfered from P1 to P2.
predicted_target = self.couple.label1.view(-1)[self.couple.idx2_P2_P1].view(batchs, -1)
for shape in range(batchs):
if self.couple.cat_1 == self.couple.cat_2:
target = self.couple.label2[shape].squeeze().data.cpu().numpy()
iou_val = miou_shape.miou_shape(predicted_target[shape].squeeze().cpu().numpy(), target,
self.dataset_train.part_category[self.couple.cat_1[shape]])
self.log.update("iou_val", iou_val)
def compute_loss_cycle2(self):
P1_P2_cycle = loss.batch_cycle_2(self.P1_P2, self.idx1_P2_P1,
self.batchs)
P2_P1_cycle = loss.batch_cycle_2(self.P2_P1, self.idx1_P1_P2,
self.batchs)
P3_P2_cycle = loss.batch_cycle_2(self.P3_P2, self.idx1_P2_P3,
self.batchs)
P2_P3_cycle = loss.batch_cycle_2(self.P2_P3, self.idx1_P3_P2,
self.batchs)
P1_P3_cycle = loss.batch_cycle_2(self.P1_P3, self.idx1_P3_P1,
self.batchs)
P3_P1_cycle = loss.batch_cycle_2(self.P3_P1, self.idx1_P1_P3,
self.batchs)
self.loss_train_cycleL2_2 = (1 / 6.0) * (
loss.L2(P1_P2_cycle, self.P1) + loss.L2(P2_P1_cycle, self.P2) +
loss.L2(P3_P2_cycle, self.P3) + loss.L2(P2_P3_cycle, self.P2) +
loss.L2(P1_P3_cycle, self.P1) + loss.L2(P3_P1_cycle, self.P3))
map(
lambda x: trainer.network.encode(
x.transpose(1, 2).contiguous(),
x.transpose(1, 2).contiguous()), points_train_list))
cosine_list = list(
map(lambda x: loss.cosine(x, P2_latent), P0_latent_list))
top_k_idx, top_k_values = min_k(cosine_list)
add("iou_cosine", top_k_idx)
# Cycle 2
P0_P2_cycle_list = list(
map(lambda x, y: loss.batch_cycle_2(x[0], y[3], 1), P0_P2_list,
P2_P0_list))
P0_P2_cycle_list = list(
map(lambda x, y: loss.L2(x, y), P0_P2_cycle_list,
points_train_list))
top_k_idx, top_k_values = min_k(P0_P2_cycle_list)
iou_P0_P2_cycle_ours = iou_ours_list[top_k_idx[0]]
iou_P0_P2_cycle_NN = iou_NN_list[top_k_idx[0]]
P2_P0_cycle_list = list(
map(lambda x, y: loss.batch_cycle_2(x[0], y[3], 1), P2_P0_list,
P0_P2_list))
P2_P0_cycle_list = list(
map(lambda x: loss.L2(x, P2), P2_P0_cycle_list))
top_k_idx, top_k_values = min_k(P2_P0_cycle_list)
iou_P2_P0_cycle_ours = iou_ours_list[top_k_idx[0]]
iou_P2_P0_cycle_NN = iou_NN_list[top_k_idx[0]]
# Cycle 2 both sides
def get_criterion_shape(opt):
return_dict = {}
my_utils.plant_seeds(randomized_seed=opt.randomize)
trainer = t.Trainer(opt)
trainer.build_dataset_train_for_matching()
trainer.build_dataset_test_for_matching()
trainer.build_network()
trainer.build_losses()
trainer.network.eval()
# Load input mesh
exist_P2_label = True
try:
mesh_path = opt.eval_get_criterions_for_shape # Ends in .txt
points = np.loadtxt(mesh_path)
points = torch.from_numpy(points).float()
# Normalization is done before resampling !
P2 = normalize_points.BoundingBox(points[:, :3])
P2_label = points[:, 6].data.cpu().numpy()
except:
mesh_path = opt.eval_get_criterions_for_shape # Ends in .obj
source_mesh_edge = get_shapenet_model.link(mesh_path)
P2 = torch.from_numpy(source_mesh_edge.vertices)
exist_P2_label = False
min_k = Min_k(opt.k_max_eval)
max_k = Max_k(opt.k_max_eval)
points_train_list = []
point_train_paths = []
labels_train_list = []
iterator_train = trainer.dataloader_train.__iter__()
for find_best in range(opt.num_shots_eval):
try:
points_train, _, _, file_path = iterator_train.next()
points_train_list.append(
points_train[:, :, :3].contiguous().cuda().float())
point_train_paths.append(file_path)
labels_train_list.append(
points_train[:, :, 6].contiguous().cuda().float())
except:
break
# ========Loop on test examples======================== #
with torch.no_grad():
P2 = P2[:, :3].unsqueeze(0).contiguous().cuda().float()
P2_latent = trainer.network.encode(
P2.transpose(1, 2).contiguous(),
P2.transpose(1, 2).contiguous())
# Chamfer (P0_P2)
P0_P2_list = list(
map(
lambda x: loss.forward_chamfer(trainer.network,
P2,
x,
local_fix=None,
distChamfer=trainer.distChamfer
), points_train_list))
# Compute Chamfer (P2_P0)
P2_P0_list = list(
map(
lambda x: loss.forward_chamfer(trainer.network,
x,
P2,
local_fix=None,
distChamfer=trainer.distChamfer
), points_train_list))
predicted_ours_P2_P0_list = list(
map(lambda x, y: x.view(-1)[y[4].view(-1).data.long()].view(1, -1),
labels_train_list, P2_P0_list))
if exist_P2_label:
iou_ours_list = list(
map(
lambda x: miou_shape.miou_shape(x.squeeze().cpu().numpy(
), P2_label, trainer.parts), predicted_ours_P2_P0_list))
top_k_idx, top_k_values = max_k(iou_ours_list)
return_dict["oracle"] = point_train_paths[top_k_idx[0]][0]
predicted_ours_P2_P0_list = list(
map(lambda x, y: x.view(-1)[y[4].view(-1).data.long()].view(1, -1),
labels_train_list, P2_P0_list))
predicted_ours_P2_P0_list = torch.cat(predicted_ours_P2_P0_list)
# Compute NN
P2_P0_NN_list = list(
map(lambda x: loss.distChamfer(x, P2), points_train_list))
predicted_NN_P2_P0_list = list(
map(lambda x, y: x.view(-1)[y[3].view(-1).data.long()].view(1, -1),
labels_train_list, P2_P0_NN_list))
predicted_NN_P2_P0_list = torch.cat(predicted_NN_P2_P0_list)
# NN
NN_chamferL2_list = list(
map(lambda x: loss.chamferL2(x[0], x[1]), P2_P0_NN_list))
top_k_idx, top_k_values = min_k(NN_chamferL2_list)
return_dict["NN_criterion"] = point_train_paths[top_k_idx[0]][0]
# Chamfer ours
chamfer_list = list(
map(lambda x: loss.chamferL2(x[1], x[2]), P2_P0_list))
top_k_idx, top_k_values = min_k(chamfer_list)
return_dict["chamfer_criterion"] = point_train_paths[top_k_idx[0]][0]
# NN in latent space
P0_latent_list = list(
map(
lambda x: trainer.network.encode(
x.transpose(1, 2).contiguous(),
x.transpose(1, 2).contiguous()), points_train_list))
cosine_list = list(
map(lambda x: loss.cosine(x, P2_latent), P0_latent_list))
top_k_idx, top_k_values = min_k(cosine_list)
return_dict["cosine_criterion"] = point_train_paths[top_k_idx[0]][0]
# Cycle 2
P0_P2_cycle_list = list(
map(lambda x, y: loss.batch_cycle_2(x[0], y[3], 1), P0_P2_list,
P2_P0_list))
P0_P2_cycle_list = list(
map(lambda x, y: loss.L2(x, y), P0_P2_cycle_list,
points_train_list))
P2_P0_cycle_list = list(
map(lambda x, y: loss.batch_cycle_2(x[0], y[3], 1), P2_P0_list,
P0_P2_list))
P2_P0_cycle_list = list(map(lambda x: loss.L2(x, P2),
P2_P0_cycle_list))
# Cycle 2 both sides
both_cycle_list = list(
map(lambda x, y: x * y, P0_P2_cycle_list, P2_P0_cycle_list))
both_cycle_list = np.power(both_cycle_list, 1.0 / 2.0).tolist()
top_k_cycle2_idx, top_k_values = min_k(both_cycle_list)
return_dict["cycle_criterion"] = point_train_paths[
top_k_cycle2_idx[0]][0]
pprint.pprint(return_dict)
return return_dict
top_k_idx, top_k_values = min_k(chamfer_list)
add("iou_chamfer", top_k_idx)
# NN in latent space
P0_latent_list = list(
map(lambda x: trainer.network.encode(x.transpose(1, 2).contiguous(),
x.transpose(1, 2).contiguous()),
points_train_list))
cosine_list = list(map(lambda x: loss.cosine(x, P2_latent), P0_latent_list))
top_k_idx, top_k_values = min_k(cosine_list)
add("iou_cosine", top_k_idx)
# Cycle 2
P0_P2_cycle_list = list(map(lambda x, y: loss.batch_cycle_2(x[0], y[3], 1), P0_P2_list, P2_P0_list))
P0_P2_cycle_list = list(map(lambda x, y: loss.L2(x, y), P0_P2_cycle_list, points_train_list))
top_k_idx, top_k_values = min_k(P0_P2_cycle_list)
iou_P0_P2_cycle_ours = iou_ours_list[top_k_idx[0]]
iou_P0_P2_cycle_NN = iou_NN_list[top_k_idx[0]]
P2_P0_cycle_list = list(map(lambda x, y: loss.batch_cycle_2(x[0], y[3], 1), P2_P0_list, P0_P2_list))
P2_P0_cycle_list = list(map(lambda x: loss.L2(x, P2), P2_P0_cycle_list))
top_k_idx, top_k_values = min_k(P2_P0_cycle_list)
iou_P2_P0_cycle_ours = iou_ours_list[top_k_idx[0]]
iou_P2_P0_cycle_NN = iou_NN_list[top_k_idx[0]]
# Cycle 2 both sides
both_cycle_list = list(map(lambda x, y: x * y, P0_P2_cycle_list, P2_P0_cycle_list))
both_cycle_list = np.power(both_cycle_list, 1.0 / 2.0).tolist()
top_k_cycle2_idx, top_k_values = min_k(both_cycle_list)
add("both_cycle", top_k_cycle2_idx)