def load_subsampled_clouds(self, subsampling_parameter):
"""
Presubsample point clouds and load into memory (Load KDTree for neighbors searches
"""
if 0 < subsampling_parameter <= 0.01:
raise ValueError(
'subsampling_parameter too low (should be over 1 cm')
# Create path for files
tree_path = join(self.path,
'input_{:.3f}'.format(subsampling_parameter))
if not exists(tree_path):
makedirs(tree_path)
# List of files to process
ply_path = join(self.path, self.train_path)
self.train_files = [
join(ply_path, f + '.ply') for f in self.cloud_names
]
# Initiate containers
self.input_trees = {'training': [], 'validation': []}
self.input_colors = {'training': [], 'validation': []}
self.input_labels = {'training': [], 'validation': []}
for i, file_path in enumerate(self.train_files):
# Restart timer
t0 = time.time()
# get cloud name and split
cloud_name = file_path.split('/')[-1][:-4]
if self.all_splits[i] == self.validation_split:
cloud_split = 'validation'
else:
cloud_split = 'training'
# Name of the input files
KDTree_file = join(tree_path, '{:s}_KDTree.pkl'.format(cloud_name))
sub_ply_file = join(tree_path, '{:s}.ply'.format(cloud_name))
# Check if inputs have already been computed
if isfile(KDTree_file):
print('\nFound KDTree for cloud {:s}, subsampled at {:.3f}'.
format(cloud_name, subsampling_parameter))
# read ply with data
data = read_ply(sub_ply_file)
sub_colors = np.vstack(
(data['red'], data['green'], data['blue'])).T
sub_labels = data['class']
# Read pkl with search tree
with open(KDTree_file, 'rb') as f:
search_tree = pickle.load(f)
else:
print(
'\nPreparing KDTree for cloud {:s}, subsampled at {:.3f}'.
format(cloud_name, subsampling_parameter))
# Read ply file
data = read_ply(file_path)
points = np.vstack((data['x'], data['y'], data['z'])).T
colors = np.vstack(
(data['red'], data['green'], data['blue'])).T
labels = data['class']
# Subsample cloud
sub_points, sub_colors, sub_labels = grid_subsampling(
points,
features=colors,
labels=labels,
sampleDl=subsampling_parameter)
# Rescale float color and squeeze label
sub_colors = sub_colors / 255
sub_labels = np.squeeze(sub_labels)
# Get chosen neighborhoods
search_tree = KDTree(sub_points, leaf_size=50)
# Save KDTree
with open(KDTree_file, 'wb') as f:
pickle.dump(search_tree, f)
# Save ply
write_ply(sub_ply_file, [sub_points, sub_colors, sub_labels],
['x', 'y', 'z', 'red', 'green', 'blue', 'class'])
# Fill data containers
self.input_trees[cloud_split] += [search_tree]
self.input_colors[cloud_split] += [sub_colors]
self.input_labels[cloud_split] += [sub_labels]
size = sub_colors.shape[0] * 4 * 7
print('{:.1f} MB loaded in {:.1f}s'.format(size * 1e-6,
time.time() - t0))
print('\nPreparing reprojection indices for testing')
# Get number of clouds
self.num_training = len(self.input_trees['training'])
self.num_validation = len(self.input_trees['validation'])
# Get validation and test reprojection indices
self.validation_proj = []
self.validation_labels = []
i_val = 0
for i, file_path in enumerate(self.train_files):
# Restart timer
t0 = time.time()
# Get info on this cloud
cloud_name = file_path.split('/')[-1][:-4]
# Validation projection and labels
if self.all_splits[i] == self.validation_split:
proj_file = join(tree_path, '{:s}_proj.pkl'.format(cloud_name))
if isfile(proj_file):
with open(proj_file, 'rb') as f:
proj_inds, labels = pickle.load(f)
else:
data = read_ply(file_path)
points = np.vstack((data['x'], data['y'], data['z'])).T
labels = data['class']
# Compute projection inds
proj_inds = np.squeeze(
self.input_trees['validation'][i_val].query(
points, return_distance=False))
proj_inds = proj_inds.astype(np.int32)
# Save
with open(proj_file, 'wb') as f:
pickle.dump([proj_inds, labels], f)
self.validation_proj += [proj_inds]
self.validation_labels += [labels]
i_val += 1
print('{:s} done in {:.1f}s'.format(cloud_name,
time.time() - t0))
print()
return
def load_sub_sampled_clouds(self, sub_grid_size):
tree_path = os.path.join(self.path,
'input_{:.3f}'.format(sub_grid_size))
files = np.hstack((self.train_files, self.val_files, self.test_files))
for i, file_path in enumerate(files):
cloud_name = file_path.split('/')[-1][:-4]
print('Load_pc_' + str(i) + ': ' + cloud_name)
if file_path in self.val_files:
cloud_split = 'validation'
elif file_path in self.train_files:
cloud_split = 'training'
else:
cloud_split = 'test'
# Name of the input files
kd_tree_file = os.path.join(tree_path,
'{:s}_KDTree.pkl'.format(cloud_name))
sub_ply_file = os.path.join(tree_path,
'{:s}.ply'.format(cloud_name))
# read ply with data
data = read_ply(sub_ply_file)
sub_colors = np.vstack(
(data['red'], data['green'], data['blue'])).T
if cloud_split == 'test':
sub_labels = None
else:
sub_labels = data['class']
# Read pkl with search tree
with open(kd_tree_file, 'rb') as f:
search_tree = pickle.load(f)
self.input_trees[cloud_split] += [search_tree]
self.input_colors[cloud_split] += [sub_colors]
if cloud_split in ['training', 'validation']:
self.input_labels[cloud_split] += [sub_labels]
# Get validation and test re_projection indices
print('\nPreparing reprojection indices for validation and test')
for i, file_path in enumerate(files):
# get cloud name and split
cloud_name = file_path.split('/')[-1][:-4]
# Validation projection and labels
if file_path in self.val_files:
proj_file = os.path.join(tree_path,
'{:s}_proj.pkl'.format(cloud_name))
with open(proj_file, 'rb') as f:
proj_idx, labels = pickle.load(f)
self.val_proj += [proj_idx]
self.val_labels += [labels]
# Test projection
if file_path in self.test_files:
proj_file = os.path.join(tree_path,
'{:s}_proj.pkl'.format(cloud_name))
with open(proj_file, 'rb') as f:
proj_idx, labels = pickle.load(f)
self.test_proj += [proj_idx]
self.test_labels += [labels]
print('finished')
for i, tree in enumerate(self.input_trees[self.mode]):
self.possibility[self.mode] += [
np.random.rand(tree.data.shape[0]) * 1e-3
]
self.min_possibility[self.mode] += [
float(np.min(self.possibility[self.mode][-1]))
]
if self.mode != 'test':
_, num_class_total = np.unique(np.hstack(
self.input_labels[self.mode]),
return_counts=True)
self.class_weight[self.mode] += [
np.squeeze([num_class_total / np.sum(num_class_total)], axis=0)
]
def create_kernel_points(scope, radius, num_kpoints, num_kernels, dimension,
fixed):
# Number of tries in the optimization process, to ensure we get the most stable disposition
num_tries = 100
# Kernel directory
kernel_dir = os.path.join(ROOT_DIR, 'kernels', 'dispositions')
if not os.path.exists(kernel_dir):
os.makedirs(kernel_dir)
prefix_name = scope.name.split('Model/')[-1].replace('/', '_')
if dimension == 3:
specific_kernel_file = os.path.join(
kernel_dir,
'sk_{}_{:04f}_{:03d}_{:s}.npy'.format(prefix_name, radius,
num_kpoints, fixed))
elif dimension == 2:
specific_kernel_file = os.path.join(
kernel_dir,
'sk_{}_{:04f}_{:03d}_{:s}_2D.npy'.format(prefix_name, radius,
num_kpoints, fixed))
else:
raise ValueError('Unsupported dimpension of kernel : ' +
str(dimension))
if os.path.exists(specific_kernel_file):
kernels = np.load(specific_kernel_file)
else:
# Kernel_file
if dimension == 3:
kernel_file = os.path.join(
kernel_dir, 'k_{:03d}_{:s}.ply'.format(num_kpoints, fixed))
elif dimension == 2:
kernel_file = os.path.join(
kernel_dir, 'k_{:03d}_{:s}_2D.ply'.format(num_kpoints, fixed))
else:
raise ValueError('Unsupported dimpension of kernel : ' +
str(dimension))
# Check if already done
if not os.path.exists(kernel_file):
# Create kernels
kernel_points, grad_norms = kernel_point_optimization_debug(
1.0,
num_kpoints,
num_kernels=num_tries,
dimension=dimension,
fixed=fixed,
verbose=0)
# Find best candidate
best_k = np.argmin(grad_norms[-1, :])
# Save points
original_kernel = kernel_points[best_k, :, :]
write_ply(kernel_file, original_kernel, ['x', 'y', 'z'])
else:
data = read_ply(kernel_file)
original_kernel = np.vstack((data['x'], data['y'], data['z'])).T
# N.B. 2D kernels are not supported yet
if dimension == 2:
return original_kernel
# Random rotations depending of the fixed points
if fixed == 'verticals':
# Create random rotations
thetas = np.random.rand(num_kernels) * 2 * np.pi
c, s = np.cos(thetas), np.sin(thetas)
R = np.zeros((num_kernels, 3, 3), dtype=np.float32)
R[:, 0, 0] = c
R[:, 1, 1] = c
R[:, 2, 2] = 1
R[:, 0, 1] = s
R[:, 1, 0] = -s
# Scale kernels
original_kernel = radius * np.expand_dims(original_kernel, 0)
# Rotate kernels
kernels = np.matmul(original_kernel, R)
else:
# Create random rotations
u = np.ones((num_kernels, 3))
v = np.ones((num_kernels, 3))
wrongs = np.abs(np.sum(u * v, axis=1)) > 0.99
while np.any(wrongs):
new_u = np.random.rand(num_kernels, 3) * 2 - 1
new_u = new_u / np.expand_dims(
np.linalg.norm(new_u, axis=1) + 1e-9, -1)
u[wrongs, :] = new_u[wrongs, :]
new_v = np.random.rand(num_kernels, 3) * 2 - 1
new_v = new_v / np.expand_dims(
np.linalg.norm(new_v, axis=1) + 1e-9, -1)
v[wrongs, :] = new_v[wrongs, :]
wrongs = np.abs(np.sum(u * v, axis=1)) > 0.99
# Make v perpendicular to u
v -= np.expand_dims(np.sum(u * v, axis=1), -1) * u
v = v / np.expand_dims(np.linalg.norm(v, axis=1) + 1e-9, -1)
# Last rotation vector
w = np.cross(u, v)
R = np.stack((u, v, w), axis=-1)
# Scale kernels
original_kernel = radius * np.expand_dims(original_kernel, 0)
# Rotate kernels
kernels = np.matmul(original_kernel, R)
# Add a small noise
kernels = kernels
kernels = kernels + np.random.normal(scale=radius * 0.01,
size=kernels.shape)
np.save(specific_kernel_file, kernels)
return kernels
if __name__ == '__main__':
# Transformation estimation
# *************************
#
# If statement to skip this part if wanted
if False:
# Cloud paths
bunny_o_path = '../data/bunny_original.ply'
bunny_r_path = '../data/bunny_returned.ply'
# Load clouds
bunny_original_file = read_ply(bunny_o_path)
bunny_returned_file = read_ply(bunny_r_path)
bunny_original_pts = np.vstack(
(bunny_original_file['x'], bunny_original_file['y'],
bunny_original_file['z']))
bunny_returned_pts = np.vstack(
(bunny_returned_file['x'], bunny_returned_file['y'],
bunny_returned_file['z']))
# Find the best transformation
R, T = best_rigid_transform(bunny_original_pts, bunny_returned_pts)
# Apply the tranformation
bunny_transformed_pts = R.dot(bunny_original_pts) + T
def load_subsampled_clouds(self, subsampling_parameter):
"""
Presubsample point clouds and load into memory (Load KDTree for neighbors searches
"""
if 0 < subsampling_parameter <= 0.01:
raise ValueError('subsampling_parameter too low (should be over 1 cm')
# Create path for files
tree_path = join(self.path, 'input_{:.3f}'.format(subsampling_parameter))
if not exists(tree_path):
makedirs(tree_path)
# All training and test files
files = np.hstack((self.train_files, self.test_files))
# Initiate containers
self.input_trees = {'training': [], 'validation': [], 'test': []}
self.input_colors = {'training': [], 'validation': [], 'test': []}
self.input_labels = {'training': [], 'validation': []}
# Advanced display
N = len(files)
progress_n = 30
fmt_str = '[{:<' + str(progress_n) + '}] {:5.1f}%'
print('\nPreparing KDTree for all scenes, subsampled at {:.3f}'.format(subsampling_parameter))
for i, file_path in enumerate(files):
# Restart timer
t0 = time.time()
# get cloud name and split
cloud_name = file_path.split('/')[-1][:-4]
cloud_folder = file_path.split('/')[-2]
if 'train' in cloud_folder:
if self.all_splits[i] == self.validation_split:
cloud_split = 'validation'
else:
cloud_split = 'training'
else:
cloud_split = 'test'
if (cloud_split != 'test' and self.load_test) or (cloud_split == 'test' and not self.load_test):
continue
# Name of the input files
KDTree_file = join(tree_path, '{:s}_KDTree.pkl'.format(cloud_name))
sub_ply_file = join(tree_path, '{:s}.ply'.format(cloud_name))
# Check if inputs have already been computed
if isfile(KDTree_file):
# read ply with data
data = read_ply(sub_ply_file)
sub_reflectance = np.expand_dims(data['reflectance'], 1)
if cloud_split == 'test':
sub_labels = None
else:
sub_labels = data['class']
# Read pkl with search tree
with open(KDTree_file, 'rb') as f:
search_tree = pickle.load(f)
else:
# Read ply file
data = read_ply(file_path)
points = np.vstack((data['x'], data['y'], data['z'])).astype(np.float32).T
reflectance = np.expand_dims(data['reflectance'], 1).astype(np.float32)
if cloud_split == 'test':
int_features = None
else:
int_features = data['class']
# Saturate reflectance
reflectance = np.minimum(reflectance, 50.0)
# Subsample cloud
sub_data = grid_subsampling(points,
features=reflectance,
labels=int_features,
sampleDl=subsampling_parameter)
# Rescale and saturate float reflectance
sub_reflectance = sub_data[1] / 50.0
# Get chosen neighborhoods
search_tree = KDTree(sub_data[0], leaf_size=50)
# Save KDTree
with open(KDTree_file, 'wb') as f:
pickle.dump(search_tree, f)
# Save ply
if cloud_split == 'test':
sub_labels = None
write_ply(sub_ply_file,
[sub_data[0], sub_reflectance],
['x', 'y', 'z', 'reflectance'])
else:
sub_labels = np.squeeze(sub_data[2])
write_ply(sub_ply_file,
[sub_data[0], sub_reflectance, sub_labels],
['x', 'y', 'z', 'reflectance', 'class'])
# Fill data containers
self.input_trees[cloud_split] += [search_tree]
self.input_colors[cloud_split] += [sub_reflectance]
if cloud_split in ['training', 'validation']:
self.input_labels[cloud_split] += [sub_labels]
print('', end='\r')
print(fmt_str.format('#' * (((i+1) * progress_n) // N), 100 * (i+1) / N), end='', flush=True)
# Get number of clouds
self.num_training = len(self.input_trees['training'])
self.num_validation = len(self.input_trees['validation'])
self.num_test = len(self.input_trees['test'])
# Get validation and test reprojection indices
self.validation_proj = []
self.validation_labels = []
self.test_proj = []
self.test_labels = []
i_val = 0
i_test = 0
# Advanced display
N = max(self.num_validation + self.num_test, 1)
print('', end='\r')
print(fmt_str.format('#' * progress_n, 100), flush=True)
print('\nPreparing reprojection indices for validation and test')
for i, file_path in enumerate(files):
# get cloud name and split
cloud_name = file_path.split('/')[-1][:-4]
cloud_folder = file_path.split('/')[-2]
# Validation projection and labels
if (not self.load_test) and 'train' in cloud_folder and self.all_splits[i] == self.validation_split:
proj_file = join(tree_path, '{:s}_proj.pkl'.format(cloud_name))
if isfile(proj_file):
with open(proj_file, 'rb') as f:
proj_inds, labels = pickle.load(f)
else:
# Get original points
data = read_ply(file_path)
points = np.vstack((data['x'], data['y'], data['z'])).T
labels = data['class']
# Compute projection inds
proj_inds = np.squeeze(self.input_trees['validation'][i_val].query(points, return_distance=False))
proj_inds = proj_inds.astype(np.int32)
# Save
with open(proj_file, 'wb') as f:
pickle.dump([proj_inds, labels], f)
self.validation_proj += [proj_inds]
self.validation_labels += [labels]
i_val += 1
# Test projection
if self.load_test and 'test' in cloud_folder:
proj_file = join(tree_path, '{:s}_proj.pkl'.format(cloud_name))
if isfile(proj_file):
with open(proj_file, 'rb') as f:
proj_inds = pickle.load(f)
else:
# Get original points
data = read_ply(file_path)
points = np.vstack((data['x'], data['y'], data['z'])).T
# Compute projection inds
proj_inds = np.squeeze(self.input_trees['test'][i_test].query(points, return_distance=False))
proj_inds = proj_inds.astype(np.int32)
# Save
with open(proj_file, 'wb') as f:
pickle.dump(proj_inds, f)
self.test_proj += [proj_inds]
self.test_labels += [np.zeros(0, dtype=np.int32)]
i_test += 1
print('', end='\r')
print(fmt_str.format('#' * (((i_val + i_test) * progress_n) // N), 100 * (i_val + i_test) / N),
end='',
flush=True)
print('\n')
return
label_names = {
0: 'Unclassified',
1: 'Ground',
2: 'Building',
3: 'Poles',
4: 'Pedestrians',
5: 'Cars',
6: 'Vegetation'
}
#%% Build training data
training_features = np.empty((0, 4))
training_labels = np.empty((0, ))
cloud_ply = read_ply(training_path)
points = np.vstack((cloud_ply['x'], cloud_ply['y'], cloud_ply['z'])).T
labels = cloud_ply['class']
# Initiate training indices array
training_inds = np.empty(0, dtype=np.int32)
for label, name in label_names.items():
if label == 0 or label == 1:
continue
label_inds = np.where(labels == label)[0]
if len(label_inds) <= num_per_class:
print('Data harvesting on class: {}'.format(name))
training_inds = np.hstack((training_inds, label_inds))
else:
random_choice = np.random.choice(len(label_inds),
def load_subsampled_clouds(self, subsampling_parameter):
"""
Presubsample point clouds and load into memory
"""
if 0 < subsampling_parameter <= 0.01:
raise ValueError(
'subsampling_parameter too low (should be over 1 cm')
# MY LABELS ARE THE COMPLETE GT POINT CLOUDS
# Initiate containers
self.partial_points = {'train': [], 'valid': [], 'test': []}
self.complete_points = {'train': [], 'valid': [], 'test': []}
self.categories = {'train': [], 'valid': [], 'test': []}
for split_type in ['train', 'valid', 'test']:
# Restart timer
t0 = time.time()
# Load wanted points if possible
print('\nLoading %s points' % split_type)
filename = join(
self.data_path,
'{0:s}_{1:.3f}_record.pkl'.format(split_type,
subsampling_parameter))
if exists(filename):
with open(filename, 'rb') as file:
self.partial_points[split_type], \
self.complete_points[split_type], \
self.categories[split_type] = pickle.load(file)
# Else compute them from original points
else:
# Collect complete & partial file data
with open(join(self.data_path,
'%s.list' % split_type)) as file:
model_list = file.read().splitlines()
file.close()
for i, cat_model_id in enumerate(model_list):
cat_id, model_id = cat_model_id.split('/')
# Read complete ply data, if subsample param exists, save subsampled complete pc, else save original
complete_data = read_ply(
join(self.data_path, split_type, 'complete', cat_id,
"%s.ply" % model_id))
complete_points = np.vstack(
(complete_data['x'], complete_data['y'],
complete_data['z'])).astype(np.float32).T
# GT prob should not be grid subsampled...no reason for that to happen...
# if subsampling_parameter > 0:
# sub_complete_points = grid_subsampling(complete_points, sampleDl=subsampling_parameter)
# For each scan, read partial ply data, if subsample param exists, save subsampled partial pc
for s in range(self.num_scans):
partial_data = read_ply(
join(self.data_path, split_type, 'partial', cat_id,
model_id, "%s.ply" % s))
partial_points = np.vstack(
(partial_data['x'], partial_data['y'],
partial_data['z'])).astype(np.float32).T
if subsampling_parameter > 0:
sub_partial_points = grid_subsampling(
partial_points, sampleDl=subsampling_parameter)
self.partial_points[split_type] += [
sub_partial_points
]
# complete points & synsets will be duplicated/matched for each scan
self.complete_points[split_type] += [
complete_points
]
self.categories[split_type] += [cat_id]
else:
self.partial_points[split_type] += [partial_points]
self.complete_points[split_type] += [
complete_points
]
self.categories[split_type] += [cat_id]
# Save split pickle for later use
with open(filename, 'wb') as file:
pickle.dump((self.partial_points[split_type],
self.complete_points[split_type],
self.categories[split_type]), file)
lengths = [p.shape[0] for p in self.partial_points[split_type]]
lengths.extend(
[p.shape[0] for p in self.complete_points[split_type]])
sizes = [l * 4 * 3 for l in lengths]
print('{:.1f} MB loaded in {:.1f}s'.format(
np.sum(sizes) * 1e-6,
time.time() - t0))
self.num_train = len(self.categories['train'])
self.num_valid = len(self.categories['valid'])
self.num_test = len(self.categories['test'])
def load_subsampled_clouds(self, subsampling_parameter):
"""
Presubsample point clouds and load into memory
"""
if 0 < subsampling_parameter <= 0.01:
raise ValueError(
'subsampling_parameter too low (should be over 1 cm')
# Initiate containers
self.input_points = {'training': [], 'validation': [], 'test': []}
self.input_labels = {'training': [], 'validation': [], 'test': []}
self.input_point_labels = {
'training': [],
'validation': [],
'test': []
}
################
# Training files
################
# Restart timer
t0 = time.time()
# Load wanted points if possible
print('\nLoading training points')
filename = join(
self.path, 'train_{:.3f}_record.pkl'.format(subsampling_parameter))
if exists(filename):
with open(filename, 'rb') as file:
self.input_labels['training'], \
self.input_points['training'], \
self.input_point_labels['training'] = pickle.load(file)
# Else compute them from original points
else:
# Collect training file names
split_path = join(self.path, '{:s}_ply'.format('train'))
names = [f[:-4] for f in listdir(split_path) if f[-4:] == '.ply']
names = np.sort(names)
# Collect point clouds
for i, cloud_name in enumerate(names):
data = read_ply(join(split_path, cloud_name + '.ply'))
points = np.vstack((data['x'], data['y'], data['z'])).T
point_labels = data['label']
if subsampling_parameter > 0:
sub_points, sub_labels = grid_subsampling(
points,
labels=point_labels,
sampleDl=subsampling_parameter)
self.input_points['training'] += [sub_points]
self.input_point_labels['training'] += [sub_labels]
else:
self.input_points['training'] += [points]
self.input_point_labels['training'] += [point_labels]
# Get labels
label_names = ['_'.join(n.split('_')[:-1]) for n in names]
self.input_labels['training'] = np.array(
[self.name_to_label[name] for name in label_names])
# Collect Validation file names
split_path = join(self.path, '{:s}_ply'.format('val'))
names = [f[:-4] for f in listdir(split_path) if f[-4:] == '.ply']
names = np.sort(names)
# Collect point clouds
for i, cloud_name in enumerate(names):
data = read_ply(join(split_path, cloud_name + '.ply'))
points = np.vstack((data['x'], data['y'], data['z'])).T
point_labels = data['label']
if subsampling_parameter > 0:
sub_points, sub_labels = grid_subsampling(
points,
labels=point_labels,
sampleDl=subsampling_parameter)
self.input_points['training'] += [sub_points]
self.input_point_labels['training'] += [sub_labels]
else:
self.input_points['training'] += [points]
self.input_point_labels['training'] += [point_labels]
# Get labels
label_names = ['_'.join(n.split('_')[:-1]) for n in names]
self.input_labels['training'] = np.hstack(
(self.input_labels['training'],
np.array([self.name_to_label[name] for name in label_names])))
# Save for later use
with open(filename, 'wb') as file:
pickle.dump((self.input_labels['training'],
self.input_points['training'],
self.input_point_labels['training']), file)
lengths = [p.shape[0] for p in self.input_points['training']]
sizes = [l * 4 * 3 for l in lengths]
print('{:.1f} MB loaded in {:.1f}s'.format(
np.sum(sizes) * 1e-6,
time.time() - t0))
############
# Test files
############
# Restart timer
t0 = time.time()
# Load wanted points if possible
print('\nLoading test points')
filename = join(self.path,
'test_{:.3f}_record.pkl'.format(subsampling_parameter))
if exists(filename):
with open(filename, 'rb') as file:
self.input_labels['test'], \
self.input_points['test'], \
self.input_point_labels['test'] = pickle.load(file)
# Else compute them from original points
else:
# Collect test file names
split_path = join(self.path, '{:s}_ply'.format('test'))
names = [f[:-4] for f in listdir(split_path) if f[-4:] == '.ply']
names = np.sort(names)
# Collect point clouds
for i, cloud_name in enumerate(names):
data = read_ply(join(split_path, cloud_name + '.ply'))
points = np.vstack((data['x'], data['y'], data['z'])).T
point_labels = data['label']
if subsampling_parameter > 0:
sub_points, sub_labels = grid_subsampling(
points,
labels=point_labels,
sampleDl=subsampling_parameter)
self.input_points['test'] += [sub_points]
self.input_point_labels['test'] += [sub_labels]
else:
self.input_points['test'] += [points]
self.input_point_labels['test'] += [point_labels]
# Get labels
label_names = ['_'.join(n.split('_')[:-1]) for n in names]
self.input_labels['test'] = np.array(
[self.name_to_label[name] for name in label_names])
# Save for later use
with open(filename, 'wb') as file:
pickle.dump(
(self.input_labels['test'], self.input_points['test'],
self.input_point_labels['test']), file)
lengths = [p.shape[0] for p in self.input_points['test']]
sizes = [l * 4 * 3 for l in lengths]
print('{:.1f} MB loaded in {:.1f}s\n'.format(
np.sum(sizes) * 1e-6,
time.time() - t0))
#######################################
# Eliminate unconsidered object classes
#######################################
# Eliminate unconsidered classes
if self.ShapeNetPartType in self.label_names:
# Index of the wanted label
wanted_label = self.name_to_label[self.ShapeNetPartType]
# Manage training points
boolean_mask = self.input_labels['training'] == wanted_label
self.input_labels['training'] = self.input_labels['training'][
boolean_mask]
self.input_points['training'] = np.array(
self.input_points['training'])[boolean_mask]
self.input_point_labels['training'] = np.array(
self.input_point_labels['training'])[boolean_mask]
self.num_train = len(self.input_labels['training'])
# Manage test points
boolean_mask = self.input_labels['test'] == wanted_label
self.input_labels['test'] = self.input_labels['test'][boolean_mask]
self.input_points['test'] = np.array(
self.input_points['test'])[boolean_mask]
self.input_point_labels['test'] = np.array(
self.input_point_labels['test'])[boolean_mask]
self.num_test = len(self.input_labels['test'])
# Change to 0-based labels
self.input_point_labels['training'] = [
p_l - 1 for p_l in self.input_point_labels['training']
]
self.input_point_labels['test'] = [
p_l - 1 for p_l in self.input_point_labels['test']
]
# Test = validation
self.input_labels['validation'] = self.input_labels['test']
self.input_points['validation'] = self.input_points['test']
self.input_point_labels['validation'] = self.input_point_labels['test']
return
if __name__ == '__main__':
# Transformation estimation
# *************************
#
# If statement to skip this part if wanted
if True:
# Cloud paths
bunny_o_path = '../data/bunny_original.ply'
bunny_r_path = '../data/bunny_returned.ply'
# Load clouds
data_o = read_ply(bunny_o_path)
ref_o = read_ply(bunny_r_path)
data = np.vstack((data_o['x'], data_o['y'], data_o['z'])).T
ref = np.vstack((ref_o['x'], ref_o['y'], ref_o['z'])).T
# Find the best transformation
R, T = best_rigid_transform(data, ref)
# Apply the tranformation
data_out = np.dot(R, data.T).T + T
# Save cloud
write_ply('../bunny_best_rigid_transformation.ply', [data_out],
['x', 'y', 'z'])
# Compute RMS
N_temp = np.shape(data)[0]
RMS = np.sqrt(1. / N_temp * np.sum((data - ref)**2))
RMS_out = np.sqrt(1. / N_temp * np.sum((data_out - ref)**2))
def load_kernels(radius, num_kpoints, dimension, fixed, lloyd=False):
# Kernel directory
kernel_dir = 'kernels/dispositions'
if not exists(kernel_dir):
makedirs(kernel_dir)
# To many points switch to Lloyds
if num_kpoints > 30:
lloyd = True
# Kernel_file
kernel_file = join(kernel_dir, 'k_{:03d}_{:s}_{:d}D.ply'.format(num_kpoints, fixed, dimension))
# Check if already done
if not exists(kernel_file):
if lloyd:
# Create kernels
kernel_points = spherical_Lloyd(1.0,
num_kpoints,
dimension=dimension,
fixed=fixed,
verbose=0)
else:
# Create kernels
kernel_points, grad_norms = kernel_point_optimization_debug(1.0,
num_kpoints,
num_kernels=100,
dimension=dimension,
fixed=fixed,
verbose=0)
# Find best candidate
best_k = np.argmin(grad_norms[-1, :])
# Save points
kernel_points = kernel_points[best_k, :, :]
write_ply(kernel_file, kernel_points, ['x', 'y', 'z'])
else:
data = read_ply(kernel_file)
kernel_points = np.vstack((data['x'], data['y'], data['z'])).T
# Random roations for the kernel
# N.B. 4D random rotations not supported yet
R = np.eye(dimension)
theta = np.random.rand() * 2 * np.pi
if dimension == 2:
if fixed != 'vertical':
c, s = np.cos(theta), np.sin(theta)
R = np.array([[c, -s], [s, c]], dtype=np.float32)
elif dimension == 3:
if fixed != 'vertical':
c, s = np.cos(theta), np.sin(theta)
R = np.array([[c, -s, 0], [s, c, 0], [0, 0, 1]], dtype=np.float32)
else:
phi = (np.random.rand() - 0.5) * np.pi
# Create the first vector in carthesian coordinates
u = np.array([np.cos(theta) * np.cos(phi), np.sin(theta) * np.cos(phi), np.sin(phi)])
# Choose a random rotation angle
alpha = np.random.rand() * 2 * np.pi
# Create the rotation matrix with this vector and angle
R = create_3D_rotations(np.reshape(u, (1, -1)), np.reshape(alpha, (1, -1)))[0]
R = R.astype(np.float32)
# Add a small noise
kernel_points = kernel_points + np.random.normal(scale=0.01, size=kernel_points.shape)
# Scale kernels
kernel_points = radius * kernel_points
# Rotate kernels
kernel_points = np.matmul(kernel_points, R)
return kernel_points.astype(np.float32)
def load_evaluation_points(self, file_path):
data = read_ply(file_path)
return np.vstack((data['x'], data['y'], data['z'])).T
N_files = 50
# Initiaion of Data Set
data = list(range(N_files))
#data = np.astype('string')
points = list(range(N_files))
# Load Point Cloud
print('Load Point Cloud begin: ')
for i in range(N_files):
if i < 10:
file_path = '../data/frames/frame_00000%d.ply' % i
else:
file_path = '../data/frames/frame_0000%d.ply' % i
data[i] = read_ply(file_path)
points[i] = np.vstack((data[i]['x'], data[i]['y'], data[i]['z'])).T
print('Load Point Cloud end. ')
# Sub Sampling
print('Sub-Sampling begin: ')
"""
Decimation_factor = 50
for i in range(N_files):
points[i] = cloud_decimation(points[i],Decimation_factor)
"""
voxel_size = 0.2
for i in range(N_files):
points[i] = grid_subsampling(points[i], voxel_size)
print('Sub-Sampling end. ')
if __name__ == '__main__':
# Transformation estimation
# *************************
#
# If statement to skip this part if wanted
if False:
# Cloud paths
bunny_o_path = '../data/bunny_original.ply'
bunny_r_path = '../data/bunny_returned.ply'
# Load clouds
bunny_o = read_ply(bunny_o_path)
bunny_o = np.vstack((bunny_o['x'], bunny_o['y'], bunny_o['z']))
bunny_r = read_ply(bunny_r_path)
bunny_r = np.vstack((bunny_r['x'], bunny_r['y'], bunny_r['z']))
# Find the best transformation
R, T = best_rigid_transform(bunny_r, bunny_o)
# Apply the tranformation
bunny_t = R.dot(bunny_r) + T
# Save cloud
write_ply('../bunny_transformed.ply', [bunny_t.T], ['x', 'y', 'z'])
# Compute RMS
diff = bunny_t - bunny_o
rms = RMS(bunny_t, bunny_o)
# Print RMS
0: 'Unclassified',
1: 'Ground',
2: 'Building',
3: 'Poles',
4: 'Pedestrians',
5: 'Cars',
6: 'Vegetation'
}
training_features = np.empty((0, 4))
training_labels = np.empty((0, ))
training_path = './data_wo_ground/training'
file = os.listdir(training_path)[0]
cloud_ply = read_ply(join(training_path, file))
points = np.vstack((cloud_ply['x'], cloud_ply['y'], cloud_ply['z'])).T
labels = cloud_ply['class']
training_inds = np.empty(0, dtype=np.int32)
for label, name in label_names.items():
if label == 0 or label == 1:
continue
label_inds = np.where(labels == label)[0]
if len(label_inds) <= num_per_class:
training_inds = np.hstack((training_inds, label_inds))
else:
random_choice = np.random.choice(len(label_inds),
num_per_class,
replace=False)
import time
import numpy as np
import os
from utils.ply import read_ply
import sys
for path1 in sys.argv[1:]:
path2 = path1[:-3] + 'npy'
if os.path.exists(path2):
continue
print(path1)
t0 = time.time()
arr = read_ply(path1)
pts = np.vstack((arr['x'], arr['y'], arr['z'], arr['intensity'], arr['red'], arr['green'], arr['blue'], arr['class'])).T
t1 = time.time()
print(pts.shape, pts.dtype, t1-t0)
np.save(path2, pts.astype(np.float32), allow_pickle=False)
t0 = time.time()
arr = np.load(path2, mmap_mode='r')
t1 = time.time()
print(arr.shape, arr.dtype, t1-t0)
if __name__ == '__main__':
# Transformation estimation
# *************************
#
# If statement to skip this part if wanted
if False:
# Cloud paths
bunny_o_path = '../data/bunny_original.ply'
bunny_r_path = '../data/bunny_returned.ply'
# Load clouds
bunny_o_file = read_ply(bunny_o_path)
bunny_r_file = read_ply(bunny_r_path)
bunny_o_pts = np.vstack(
(bunny_o_file['x'], bunny_o_file['y'], bunny_o_file['z'])) # data
bunny_r_pts = np.vstack(
(bunny_r_file['x'], bunny_r_file['y'], bunny_r_file['z'])) # ref
# Find the best transformation
R, T = best_rigid_transform(bunny_o_pts, bunny_r_pts)
# Apply the tranformation
bunny_m_pts = R.dot(bunny_o_pts) + T
# Save cloud
write_ply('../bunny_transform.ply', [bunny_m_pts.T], ['x', 'y', 'z'])
default="checkpoints/full_cloud.txt",
help='File containing the predictions.')
parser.add_argument('--cloud_file',
type=str,
default="data/MiniChallenge/test/Lille2_al.ply",
metavar='C',
help='Labelled ground truth cloud.')
parser.add_argument('--latex',
type=bool,
default=False,
help="IoU printing format")
args = parser.parse_args()
pred = np.loadtxt(args.pred_file, dtype=int)
cloud = read_ply(args.cloud_file)
gt10c = cloud['scalar_class']
gt = to6classes(gt10c)
cm = confusionMatrix(pred, gt)
print(cm)
# plt.matshow(cm)
# plt.show()
iouc = iou(cm)
if args.latex:
return normal.astype(np.float32)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Point Cloud Recognition')
parser.add_argument('--path',
type=str,
default='data/MiniChallenge/test',
metavar='N',
help='Folder containing the point clouds')
parser.add_argument('--labels', type=bool, default=False)
args = parser.parse_args()
for fname in glob.glob(args.path + "/*.ply"):
print(fname)
cloud = read_ply(fname)
points = np.vstack((cloud['x'], cloud['y'], cloud['z'])).T
points = alignCloud(points).astype(np.float32)
if args.labels:
labels = cloud['class']
data = [points, labels]
colname = ['x', 'y', 'z', 'class']
else:
data = [points]
colname = [
'x',
'y',
'z',
]
#
# Here you can define the instructions that are called when you execute this file
#
if __name__ == '__main__':
# Load point cloud
# ****************
#
# Load the file '../data/indoor_scan.ply'
# (See read_ply function)
#
planarities_path = '../data/planarities.ply'
if os.path.exists(planarities_path):
# Load point cloud
data = read_ply(planarities_path)
# Concatenate data
points = np.vstack((data['x'], data['y'], data['z'])).T
normals = np.vstack((data['nx'], data['ny'], data['nz'])).T
colors = np.vstack((data['red'], data['green'], data['blue'])).T
planarities = data['planarities']
else:
# Path of the file
file_path = '../data/indoor_scan.ply'
# Load point cloud
data = read_ply(file_path)
# %% Relabel clouds (merge 2 terrain classes)
# Parameters
original_clouds_folder = Path("..") / "data" / "original_clouds"
relabeled_clouds_folder = Path("..") / "data" / "relabeled_clouds"
overwrite = False
if not relabeled_clouds_folder.exists():
relabeled_clouds_folder.mkdir()
for ply_file in original_clouds_folder.glob("*.ply"):
relabeled_ply_file = relabeled_clouds_folder / ply_file.name
if overwrite or not relabeled_ply_file.exists():
print(f"Relabeling: {ply_file}")
data = read_ply(str(ply_file))
cloud = np.vstack((data['x'], data['y'], data['z'])).T
rgb_colors = np.vstack((data['red'], data['green'], data['blue'])).T
dlaser = data['reflectance']
if "label" not in data.dtype.names:
print(f"Cancelling relabeling because no label field was given")
continue
label = data['label']
label[label == 1] = 2
write_ply(str(relabeled_ply_file), [
cloud, dlaser,
rgb_colors.astype(np.int32),
label.astype(np.int32)
], ['x', 'y', 'z', 'reflectance', 'red', 'green', 'blue', 'label'])
print(f"Done relabeling: {ply_file}")
# Load point clouds
# *****************
#
# Transformation estimation
# *************************
#
# If statement to skip this part if wanted
if True:
# Load clouds
bunny_o_path = '../data/bunny_original.ply'
bunny_r_path = '../data/bunny_returned.ply'
bunny_o_ply = read_ply(bunny_o_path)
bunny_r_ply = read_ply(bunny_r_path)
bunny_o = np.vstack(
(bunny_o_ply['x'], bunny_o_ply['y'], bunny_o_ply['z']))
bunny_r = np.vstack(
(bunny_r_ply['x'], bunny_r_ply['y'], bunny_r_ply['z']))
# Find the best transformation
R, T = best_rigid_transform(bunny_r, bunny_o)
# Apply the tranformation
bunny_r_opt = R.dot(bunny_r) + T
# Save cloud
write_ply('../bunny_r_opt', [bunny_r_opt.T], ['x', 'y', 'z'])
def show_activation(path, relu_idx=0, save_video=False):
"""
This function show the saved input point clouds maximizing the activations. You can also directly load the files
in a visualization software like CloudCompare.
In the case of relu_idx = 0 and if gaussian mode, the associated filter is also shown. This function can only
show the filters for the last saved epoch.
"""
################
# Find the files
################
# Check visu folder
visu_path = join(drive_results,
'visu',
'visu_' + path.split('/')[-1],
'top_activations',
'Relu{:02d}'.format(relu_idx))
if not exists(visu_path):
message = 'Relu {:d} activations of the model {:s} not found.'
raise ValueError(message.format(relu_idx, path.split('/')[-1]))
# Get the list of files
feature_files = np.sort([f for f in listdir(visu_path) if f.endswith('.ply')])
if len(feature_files) == 0:
message = 'Relu {:d} activations of the model {:s} not found.'
raise ValueError(message.format(relu_idx, path.split('/')[-1]))
# Load mode
config = Config()
config.load(path)
mode = config.convolution_mode
#################
# Get activations
#################
all_points = []
all_responses = []
for file in feature_files:
# Load points
data = read_ply(join(visu_path, file))
all_points += [np.vstack((data['x'], data['y'], data['z'])).T]
all_responses += [data['responses']]
###########################
# Interactive visualization
###########################
# Create figure for features
fig1 = mlab.figure('Features', bgcolor=(0.5, 0.5, 0.5), size=(640, 480))
fig1.scene.parallel_projection = False
# Indices
global file_i
file_i = 0
def update_scene():
# clear figure
mlab.clf(fig1)
# Plot new data feature
points = all_points[file_i]
responses = all_responses[file_i]
min_response, max_response = np.min(responses), np.max(responses)
responses = (responses - min_response) / (max_response - min_response)
# Rescale points for visu
points = (points * 1.5 / config.in_radius + np.array([1.0, 1.0, 1.0])) * 50.0
# Show point clouds colorized with activations
activations = mlab.points3d(points[:, 0],
points[:, 1],
points[:, 2],
responses,
scale_factor=3.0,
scale_mode='none',
vmin=0.1,
vmax=0.9,
figure=fig1)
# New title
mlab.title(feature_files[file_i], color=(0, 0, 0), size=0.3, height=0.01)
text = '<--- (press g for previous)' + 50 * ' ' + '(press h for next) --->'
mlab.text(0.01, 0.01, text, color=(0, 0, 0), width=0.98)
mlab.orientation_axes()
return
def keyboard_callback(vtk_obj, event):
global file_i
if vtk_obj.GetKeyCode() in ['g', 'G']:
file_i = (file_i - 1) % len(all_responses)
update_scene()
elif vtk_obj.GetKeyCode() in ['h', 'H']:
file_i = (file_i + 1) % len(all_responses)
update_scene()
return
# Draw a first plot
update_scene()
fig1.scene.interactor.add_observer('KeyPressEvent', keyboard_callback)
mlab.show()
return
#
#
# Here you can define the instructions that are called when you execute this file
#
if __name__ == '__main__':
# PCA verification
# ****************
#
if False:
# Load cloud as a [N x 3] matrix
cloud_path = '../data/Lille_street_small.ply'
cloud_ply = read_ply(cloud_path)
cloud = np.vstack((cloud_ply['x'], cloud_ply['y'], cloud_ply['z'])).T
# Compute PCA on the whole cloud
eigenvalues, eigenvectors = local_PCA(cloud)
# Print your result
print(eigenvalues)
# Expected values :
#
# [lambda_3; lambda_2; lambda_1] = [ 5.25050177 21.7893201 89.58924003]
#
# (the convention is always lambda_1 >= lambda_2 >= lambda_3)
#
if __name__ == '__main__':
# Transformation estimation
# *************************
#
# If statement to skip this part if wanted
if False:
# Cloud paths
bunny_o_path = '../data/bunny_original.ply'
bunny_r_path = '../data/bunny_returned.ply'
# Load point cloud
data_o = read_ply(bunny_o_path)
points_o = np.vstack((data_o['x'], data_o['y'], data_o['z']))
data_r = read_ply(bunny_r_path)
points_r = np.vstack((data_r['x'], data_r['y'], data_r['z']))
# Find the best transformation
R, T = best_rigid_transform(points_r, points_o)
# Apply the tranformation
transformed_points = R @ points_r + T
# Save cloud
write_ply('../bunny_recaled.ply', [transformed_points.T],
['x', 'y', 'z'])
# Compute RMS
hoppe = np.sum(closest_normals * (voxels[:, np.newaxis] - closest_points),
axis=-1)
# finally compute f(x)
volume = np.sum(hoppe * theta, axis=-1) / np.sum(theta, axis=-1)
return volume.reshape(*d * [number_cells + 1])
if __name__ == '__main__':
# Path of the file
file_path = '../data/bunny_normals.ply'
# Load point cloud
data = read_ply(file_path)
# Concatenate data
points = np.vstack((data['x'], data['y'], data['z'])).T
normals = np.vstack((data['nx'], data['ny'], data['nz'])).T
# Compute the min and max of the data points
min_grid = np.copy(points[0, :])
max_grid = np.copy(points[0, :])
for i in range(1, points.shape[0]):
for j in range(0, 3):
if (points[i, j] < min_grid[j]):
min_grid[j] = points[i, j]
if (points[i, j] > max_grid[j]):
max_grid[j] = points[i, j]
def test_multi_segmentation(self,
model,
dataset,
num_votes=30,
num_saves=10):
##################
# Pre-computations
##################
print('Preparing test structures')
t1 = time.time()
# Collect original test file names
original_path = join(dataset.path, 'test_ply')
test_names = [
f[:-4] for f in listdir(original_path) if f[-4:] == '.ply'
]
test_names = np.sort(test_names)
original_labels = []
original_points = []
projection_inds = []
for i, cloud_name in enumerate(test_names):
# Read data in ply file
data = read_ply(join(original_path, cloud_name + '.ply'))
points = np.vstack((data['x'], -data['z'], data['y'])).T
original_labels += [data['label'] - 1]
original_points += [points]
# Create tree structure to compute neighbors
tree = KDTree(dataset.input_points['test'][i])
projection_inds += [
np.squeeze(tree.query(points, return_distance=False))
]
t2 = time.time()
print('Done in {:.1f} s\n'.format(t2 - t1))
##########
# Initiate
##########
# Test saving path
if model.config.saving:
test_path = join('test', model.saving_path.split('/')[-1])
if not exists(test_path):
makedirs(test_path)
else:
test_path = None
# Initialise iterator with test data
self.sess.run(dataset.test_init_op)
# Initiate result containers
average_predictions = [
np.zeros((1, 1), dtype=np.float32) for _ in test_names
]
#####################
# Network predictions
#####################
mean_dt = np.zeros(2)
last_display = time.time()
for v in range(num_votes):
# Run model on all test examples
# ******************************
# Initiate result containers
all_predictions = []
all_obj_inds = []
while True:
try:
# Run one step of the model
t = [time.time()]
ops = (self.prob_logits, model.labels,
model.inputs['super_labels'],
model.inputs['object_inds'],
model.inputs['in_batches'])
preds, labels, obj_labels, o_inds, batches = self.sess.run(
ops, {model.dropout_prob: 1.0})
t += [time.time()]
# Stack all predictions for each class separately
max_ind = np.max(batches)
for b_i, b in enumerate(batches):
# Eliminate shadow indices
b = b[b < max_ind - 0.5]
# Get prediction (only for the concerned parts)
obj = obj_labels[b[0]]
predictions = preds[b][:, :model.config.
num_classes[obj]]
# Stack all results
all_predictions += [predictions]
all_obj_inds += [o_inds[b_i]]
# Average timing
t += [time.time()]
mean_dt = 0.95 * mean_dt + 0.05 * (np.array(t[1:]) -
np.array(t[:-1]))
# Display
if (t[-1] - last_display) > 1.0:
last_display = t[-1]
message = 'Vote {:d} : {:.1f}% (timings : {:4.2f} {:4.2f})'
print(
message.format(
v,
100 * len(all_predictions) / dataset.num_test,
1000 * (mean_dt[0]), 1000 * (mean_dt[1])))
except tf.errors.OutOfRangeError:
break
# Project predictions on original point clouds
# ********************************************
print('\nGetting test confusions')
t1 = time.time()
for i, probs in enumerate(all_predictions):
# Interpolate prediction from current positions to original points
obj_i = all_obj_inds[i]
proj_predictions = probs[projection_inds[obj_i]]
# Average prediction across votes
average_predictions[obj_i] = average_predictions[obj_i] + \
(proj_predictions - average_predictions[obj_i]) / (v + 1)
Confs = []
for obj_i, avg_probs in enumerate(average_predictions):
# Compute confusion matrices
parts = [j for j in range(avg_probs.shape[1])]
Confs += [
confusion_matrix(original_labels[obj_i],
np.argmax(avg_probs, axis=1), parts)
]
t2 = time.time()
print('Done in {:.1f} s\n'.format(t2 - t1))
# Save the best/worst segmentations per class
# *******************************************
print('Saving test examples')
t1 = time.time()
# Regroup confusions per object class
Confs = np.array(Confs)
obj_mIoUs = []
for l in dataset.label_values:
# Get confusions for this object
obj_inds = np.where(dataset.input_labels['test'] == l)[0]
obj_confs = np.stack(Confs[obj_inds])
# Get IoU
obj_IoUs = IoU_from_confusions(obj_confs)
obj_mIoUs += [np.mean(obj_IoUs, axis=-1)]
# Get X best and worst prediction
order = np.argsort(obj_mIoUs[-1])
worst_inds = obj_inds[order[:num_saves]]
best_inds = obj_inds[order[:-num_saves - 1:-1]]
worst_IoUs = obj_IoUs[order[:num_saves]]
best_IoUs = obj_IoUs[order[:-num_saves - 1:-1]]
# Save the names in a file
obj_path = join(test_path, dataset.label_to_names[l])
if not exists(obj_path):
makedirs(obj_path)
worst_file = join(obj_path, 'worst_inds.txt')
best_file = join(obj_path, 'best_inds.txt')
with open(worst_file, "w") as text_file:
for w_i, w_IoUs in zip(worst_inds, worst_IoUs):
text_file.write('{:d} {:s} :'.format(
w_i, test_names[w_i]))
for IoU in w_IoUs:
text_file.write(' {:.1f}'.format(100 * IoU))
text_file.write('\n')
with open(best_file, "w") as text_file:
for b_i, b_IoUs in zip(best_inds, best_IoUs):
text_file.write('{:d} {:s} :'.format(
b_i, test_names[b_i]))
for IoU in b_IoUs:
text_file.write(' {:.1f}'.format(100 * IoU))
text_file.write('\n')
# Save the clouds
for i, w_i in enumerate(worst_inds):
filename = join(obj_path, 'worst_{:02d}.ply'.format(i + 1))
preds = np.argmax(average_predictions[w_i],
axis=1).astype(np.int32)
write_ply(
filename,
[original_points[w_i], original_labels[w_i], preds],
['x', 'y', 'z', 'gt', 'pre'])
for i, b_i in enumerate(best_inds):
filename = join(obj_path, 'best_{:02d}.ply'.format(i + 1))
preds = np.argmax(average_predictions[b_i],
axis=1).astype(np.int32)
write_ply(
filename,
[original_points[b_i], original_labels[b_i], preds],
['x', 'y', 'z', 'gt', 'pre'])
t2 = time.time()
print('Done in {:.1f} s\n'.format(t2 - t1))
# Display results
# ***************
objs_average = [np.mean(mIoUs) for mIoUs in obj_mIoUs]
instance_average = np.mean(np.hstack(obj_mIoUs))
class_average = np.mean(objs_average)
print(
'Objs | Inst | Air Bag Cap Car Cha Ear Gui Kni Lam Lap Mot Mug Pis Roc Ska Tab'
)
print(
'-----|------|--------------------------------------------------------------------------------'
)
s = '{:4.1f} | {:4.1f} | '.format(100 * class_average,
100 * instance_average)
for AmIoU in objs_average:
s += '{:4.1f} '.format(100 * AmIoU)
print(s + '\n')
# Initialise iterator with test data
self.sess.run(dataset.test_init_op)
return