def sum_std_values(laserscan_file: str, mean_vector):
laserscan = LaserScan()
laserscan.open_scan(laserscan_file)
xmean = mean_vector[INDEX_ORDER.index("X")]
ymean = mean_vector[INDEX_ORDER.index("Y")]
zmean = mean_vector[INDEX_ORDER.index("Z")]
remmean = mean_vector[INDEX_ORDER.index("REMISSION")]
rangemean = mean_vector[INDEX_ORDER.index("RANGE")]
return lh.sum_laserscan_std(laserscan, xmean, ymean, zmean, remmean,
rangemean)
def get_laserscan_matrix(laserscan_file: str, label_file: str):
laser_filename = os.path.splitext(os.path.basename(laserscan_file))[0]
label_filename = os.path.splitext(os.path.basename(label_file))[0]
if laser_filename != label_filename:
warnings.warn(
UserWarning,
f"The laser-file {laser_filename} and label-file {label_filename} are not "
f"the same. Skipping these files...")
return None, None
laserscan = LaserScan()
laserscan.open_scan(laserscan_file)
laserscan.open_labels(label_file)
laserscan_matrix = np.concatenate([
laserscan.points,
laserscan.remissions.reshape(-1, 1),
laserscan.labels.reshape(-1, 1)
],
axis=1)
return laserscan_matrix, laser_filename
def __getitem__(self, index):
# get item in tensor shape
scan_file = self.scan_files[index]
if self.gt:
mask_file = self.mask_files[index]
mask = np.load(mask_file)
mask[mask > 0.5] = 1
mask[mask <= 0.5] = 0
mask = np.expand_dims(mask, axis=0)
scan = LaserScan(project=True,
H=self.sensor_img_H,
W=self.sensor_img_W,
fov_up=self.sensor_fov_up,
fov_down=self.sensor_fov_down)
# open and obtain scan
scan.open_scan(scan_file)
# if self.gt:
depth_image = np.copy(scan.proj_range)
rows = depth_image.shape[0]
cols = depth_image.shape[1]
row_gap = 1
col_gap = 1
max_range = 80
normal_image = np.zeros((rows, cols, 3))
for r in range(row_gap, rows - row_gap):
for c in range(col_gap, cols - col_gap):
if depth_image[r, c] > max_range:
continue
if depth_image[r + row_gap, c] < 0 or depth_image[r - row_gap,
c] < 0:
continue
if depth_image[r, c + col_gap] < 0 or depth_image[r, c -
col_gap] < 0:
continue
dx = depth_image[r + row_gap, c] - depth_image[r - row_gap, c]
dy = depth_image[r, c + col_gap] - depth_image[r, c - col_gap]
d = np.array([-dx, -dy, 1])
normal = d / np.linalg.norm(d)
p = scan.proj_xyz[r, c]
if np.dot(normal, p) > 0:
normal *= -1
normal_image[r, c] = normal
curvature_image = np.full(depth_image.shape, -1, dtype=np.float32)
for r in range(row_gap, rows - row_gap):
for c in range(col_gap, cols - col_gap):
dnx = normal_image[r + row_gap, c] - normal_image[r - row_gap,
c]
dny = normal_image[r, c + col_gap] - normal_image[r,
c - col_gap]
if np.linalg.norm(
normal_image[r + 1, c]) < 1e-3 or np.linalg.norm(
normal_image[r - 1, c]) < 1e-3:
continue
if np.linalg.norm(
normal_image[r, c + 1]) < 1e-3 or np.linalg.norm(
normal_image[r, c - 1]) < 1e-3:
continue
squared_curvature = np.linalg.norm(dnx)**2 + np.linalg.norm(
dny)**2
curvature_image[r, c] = np.sqrt(squared_curvature)
# make a tensor of the uncompressed data (with the max num points)
unproj_n_points = scan.points.shape[0]
unproj_xyz = torch.full((self.max_points, 3), -1.0, dtype=torch.float)
unproj_xyz[:unproj_n_points] = torch.from_numpy(scan.points)
unproj_range = torch.full([self.max_points], -1.0, dtype=torch.float)
unproj_range[:unproj_n_points] = torch.from_numpy(scan.unproj_range)
unproj_remissions = torch.full([self.max_points],
-1.0,
dtype=torch.float)
unproj_remissions[:unproj_n_points] = torch.from_numpy(scan.remissions)
unproj_labels = []
# get points and labels
proj_range = torch.from_numpy(scan.proj_range).clone()
proj_normals = torch.from_numpy(normal_image).clone()
proj_normals = proj_normals.type(torch.FloatTensor)
proj_curvature = torch.from_numpy(curvature_image).clone()
proj_curvature = proj_curvature.type(torch.FloatTensor)
proj_xyz = torch.from_numpy(scan.proj_xyz).clone()
proj_remission = torch.from_numpy(scan.proj_remission).clone()
proj_mask = torch.from_numpy(scan.proj_mask).clone()
# proj_mask = proj_mask.type(torch.FloatTensor)
if self.gt:
proj_labels = torch.from_numpy(mask).clone()
proj_labels = proj_labels * proj_mask
else:
proj_labels = []
proj_x = torch.full([self.max_points], -1, dtype=torch.long)
proj_x[:unproj_n_points] = torch.from_numpy(scan.proj_x)
proj_y = torch.full([self.max_points], -1, dtype=torch.long)
proj_y[:unproj_n_points] = torch.from_numpy(scan.proj_y)
proj_normalized = torch.cat([
proj_range.unsqueeze(0).clone(),
proj_xyz.clone().permute(2, 0, 1),
proj_remission.unsqueeze(0).clone()
])
proj_normalized = (proj_normalized -
self.sensor_img_means[:, None, None]
) / self.sensor_img_stds[:, None, None]
proj = torch.cat([
proj_normalized,
proj_normals.clone().permute(2, 0, 1),
proj_curvature.unsqueeze(0).clone()
])
proj = proj * proj_mask.float()
# get name and sequence
path_norm = os.path.normpath(scan_file)
path_split = path_norm.split(os.sep)
path_seq = path_split[-3]
path_name = path_split[-1].replace(".bin", ".label")
# print("path_norm: ", path_norm)
# print("path_seq", path_seq)
# print("path_name", path_name)
# return
return proj, proj_mask, proj_labels, unproj_labels, path_seq, path_name, proj_x, proj_y, proj_range, unproj_range, proj_xyz, unproj_xyz, proj_remission, unproj_remissions, unproj_n_points
def sum_mean_values(laserscan_file: str):
laserscan = LaserScan()
laserscan.open_scan(laserscan_file)
return lh.sum_laserscan_properties(laserscan)
