def test_groundtruth_raises_value_error(self, device):
device = default_to_cpu_if_no_gpu(device)
channels_first = False
rgbdimages = TestGroundTruth.init_rgbdimages(
device=device, channels_first=channels_first)
nopose_rgbdimages = TestGroundTruth.init_rgbdimages(device=device)
nopose_rgbdimages.poses = None
batch_rgbdimages = RGBDImages(
rgbdimages.rgb_image.repeat(2, 1, 1, 1, 1),
rgbdimages.depth_image.repeat(2, 1, 1, 1, 1),
rgbdimages.intrinsics.repeat(2, 1, 1, 1),
rgbdimages.poses.repeat(2, 1, 1, 1),
channels_first=channels_first,
).to(device)
tensor = torch.rand(1, 1, 4, 4)
odom = GroundTruthOdometryProvider()
with pytest.raises(ValueError):
odom = odom.provide(rgbdimages[:, 0], nopose_rgbdimages[:, 1])
with pytest.raises(ValueError):
odom = odom.provide(nopose_rgbdimages[:, 0], rgbdimages[:, 1])
with pytest.raises(ValueError):
odom = odom.provide(rgbdimages[:, 0], rgbdimages)
with pytest.raises(ValueError):
odom = odom.provide(rgbdimages, rgbdimages[:, 1])
with pytest.raises(ValueError):
odom = odom.provide(rgbdimages, batch_rgbdimages)
def test_point_to_plane_gradICP_transform1(self):
device = torch.device("cuda")
channels_first = False
colors, depths, intrinsics, poses = load_test_data(channels_first,
batch_size=1)
rgbdimages = RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
poses.to(device),
channels_first=channels_first,
)
sigma = 0.6
src_pointclouds = pointclouds_from_rgbdimages(rgbdimages[:,
0]).to(device)
rad = 0.2
transform = torch.tensor(
[
[1.0, 0.0, 0.0, 0.05],
[0.0, np.cos(rad), -np.sin(rad), 0.03],
[0.0, np.sin(rad), np.cos(rad), 0.01],
[0.0, 0.0, 0.0, 1.0],
],
device=device,
dtype=colors.dtype,
)
# transform = torch.tensor(
# [
# [np.cos(rad), -np.sin(rad), 0.0, 0.05],
# [np.sin(rad), np.cos(rad), 0.0, 0.03],
# [0.0, 0.0, 1.0, 0.01],
# [0.0, 0.0, 0.0, 1.0],
# ],
# device=device,
# dtype=colors.dtype,
# )
tgt_pointclouds = src_pointclouds.transform(transform)
src_pc = src_pointclouds.points_padded
tgt_pc = tgt_pointclouds.points_padded
tgt_normals = tgt_pointclouds.normals_padded
initial_transform = torch.eye(4, device=device)
numiters = 100
damp = 1e-8
dist_thresh = None
t, idx = point_to_plane_gradICP(
src_pc,
tgt_pc,
tgt_normals,
initial_transform,
numiters,
damp,
dist_thresh,
)
assert t.shape == transform.shape
assert_allclose(t, transform)
def init_rgbdimages(
use_poses=True,
channels_first=False,
device: str = "cpu",
):
device = torch.device(device)
colors, depths, intrinsics, poses = load_test_data(channels_first)
if use_poses:
rgbdimages = RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
poses.to(device),
channels_first=channels_first,
)
else:
rgbdimages = RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
channels_first=channels_first,
)
return rgbdimages, colors, depths, intrinsics, poses
def test_gradICP_provide(self):
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
channels_first = False
colors, depths, intrinsics, poses = load_test_data(channels_first,
batch_size=1)
rgbdimages = RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
poses.to(device),
channels_first=channels_first,
)
sigma = 0.6
src_pointclouds = pointclouds_from_rgbdimages(rgbdimages[:,
0]).to(device)
rad = 0.1
transform = torch.tensor(
[
[np.cos(rad), -np.sin(rad), 0.0, 0.05],
[np.sin(rad), np.cos(rad), 0.0, 0.03],
[0.0, 0.0, 1.0, 0.01],
[0.0, 0.0, 0.0, 1.0],
],
device=device,
dtype=colors.dtype,
)
tgt_pointclouds = src_pointclouds.transform(transform)
numiters = 30
damp = 1e-8
dist_thresh = 0.2
lambda_max = 2.0
B = 1.0
B2 = 1.0
nu = 200.0
odom = GradICPOdometryProvider(
numiters=numiters,
damp=damp,
dist_thresh=dist_thresh,
lambda_max=lambda_max,
B=B,
B2=B2,
nu=nu,
)
odom_transform = odom.provide(tgt_pointclouds, src_pointclouds)
odom_transform = odom_transform.squeeze(1).squeeze(0)
assert odom_transform.shape == transform.shape
assert_allclose(odom_transform, transform)
def test_pointclouds_from_rgbdimages(self, channels_first, device):
device = default_to_cpu_if_no_gpu(device)
colors, depths, intrinsics, poses = load_test_data(channels_first)
rgbdimages = RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
poses.to(device),
channels_first=channels_first,
)
pointclouds = pointclouds_from_rgbdimages(rgbdimages[:, 0]).to(device)
projected_pointclouds = pointclouds.pinhole_projection(
intrinsics.to(device).squeeze(1))
proj0 = projected_pointclouds.points_list[0][..., :-1]
meshgrid = (create_meshgrid(rgbdimages.shape[2], rgbdimages.shape[3],
False).to(device).squeeze(0))
meshgrid = torch.cat(
[
meshgrid[..., 1:],
meshgrid[..., 0:1],
],
-1,
)
groundtruth = meshgrid[rgbdimages[0, 0].valid_depth_mask.squeeze()]
assert_allclose(proj0.round().float(), groundtruth.float())
# without filtering missing depths
pointclouds2 = pointclouds_from_rgbdimages(
rgbdimages[:, 0], filter_missing_depths=False).to(device)
for b in range(len(pointclouds)):
filtered_points = pointclouds.points_list[b]
unfiltered_points = pointclouds2.points_list[b]
m = 0
for n in range(len(filtered_points)):
while (not ((filtered_points[n] - unfiltered_points[m])**
2).sum() < 1e-12):
m += 1
assert ((filtered_points[n] - unfiltered_points[m])**
2).sum() < 1e-12
m += 1
def test_downsample_rgbdimages_raises_type_error(self):
device = default_to_cpu_if_no_gpu("cuda")
image = (torch.tensor(
[
[
[0.0, 0.0, 0.0],
[1.0, 1.0, 1.0],
[2.0, 2.0, 2.0],
[3.0, 3.0, 3.0],
],
[
[4.0, 4.0, 4.0],
[5.0, 5.0, 5.0],
[6.0, 6.0, 6.0],
[7.0, 7.0, 7.0],
],
[
[8.0, 8.0, 8.0],
[9.0, 9.0, 9.0],
[10.0, 10.0, 10.0],
[11.0, 11.0, 11.0],
],
],
device=device,
dtype=torch.float,
).unsqueeze(0).unsqueeze(0))
depth = torch.ones_like(image[..., :1])
intrinsics = torch.eye(4).unsqueeze(0).unsqueeze(0).to(device)
poses = torch.eye(4).unsqueeze(0).unsqueeze(0).to(device)
rgbdimages = RGBDImages(image,
depth,
intrinsics,
poses,
channels_first=False).to(device)
ds_ratio = 2
ds_pointclouds = downsample_rgbdimages(rgbdimages, ds_ratio)
with pytest.raises(TypeError):
downsample_rgbdimages("a", ds_ratio)
with pytest.raises(TypeError):
downsample_rgbdimages(rgbdimages, "a")
def test_raises_errors(self, device):
device = default_to_cpu_if_no_gpu(device)
channels_first = False
colors, depths, intrinsics, poses = load_test_data(channels_first)
rgbdimages = RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
poses.to(device),
channels_first=channels_first,
) # .to(device)
sigma = 0.6
with pytest.raises(
TypeError,
match="Expected rgbdimages to be of type gradslam.RGBDImages"):
pointclouds = pointclouds_from_rgbdimages(depths).to(device)
with pytest.raises(
ValueError,
match="Expected rgbdimages to have sequence length of 1"):
pointclouds = pointclouds_from_rgbdimages(rgbdimages).to(device)
def init_rgbdimages(
channels_first: bool = False,
device: str = "cpu",
):
device = torch.device(device)
channels_first = False
colors = torch.rand(1, 2, 32, 32, 3)
depths = torch.rand(1, 2, 32, 32, 1)
intrinsics = torch.rand(1, 1, 4, 4)
rad1 = 0.1
rad2 = 0.7
poses = torch.tensor(
[
[
[np.cos(rad1), -np.sin(rad1), 0.0, 0.05],
[np.sin(rad1), np.cos(rad1), 0.0, 0.03],
[0.0, 0.0, 1.0, 0.01],
[0.0, 0.0, 0.0, 1.0],
],
[
[np.cos(rad2), -np.sin(rad2), 0.0, 0.05],
[np.sin(rad2), np.cos(rad2), 0.0, 0.03],
[0.0, 0.0, 1.0, 0.01],
[0.0, 0.0, 0.0, 1.0],
],
],
device=device,
dtype=colors.dtype,
).unsqueeze(0)
return RGBDImages(
colors.to(device),
depths.to(device),
intrinsics.to(device),
poses.to(device),
channels_first=channels_first,
).to(device)
# Scannet needs to have been extracted in our format
dataset = Scannet(
args.scannet_path,
args.scannet_meta_path,
(
"scene0333_00",
"scene0636_00",
),
start=0,
end=4,
height=240,
width=320,
)
loader = DataLoader(dataset=dataset, batch_size=2)
colors, depths, intrinsics, poses, *_ = next(iter(loader))
# create rgbdimages object
rgbdimages = RGBDImages(colors,
depths,
intrinsics,
poses,
channels_first=False)
# SLAM
slam = PointFusion(odom=args.odometry, dsratio=4, device=device)
pointclouds, recovered_poses = slam(rgbdimages)
# visualization
o3d.visualization.draw_geometries([pointclouds.open3d(0)])
o3d.visualization.draw_geometries([pointclouds.open3d(1)])
help="Odometry method to use. Supported options:\n"
" gt = Ground Truth odometry\n"
" icp = Iterative Closest Point\n"
" gradicp (*default) = Differentiable Iterative Closest Point\n",
)
args = parser.parse_args()
if __name__ == "__main__":
# select device
device = torch.device(
"cuda") if torch.cuda.is_available() else torch.device("cpu")
# load dataset
if args.dataset == "icl":
dataset = ICL(args.dataset_path, seqlen=10, height=120, width=160)
elif args.dataset == "tum":
dataset = TUM(args.dataset_path, seqlen=10, height=120, width=160)
loader = DataLoader(dataset=dataset, batch_size=2)
colors, depths, intrinsics, poses, *_ = next(iter(loader))
# create rgbdimages object
rgbdimages = RGBDImages(colors, depths, intrinsics, poses)
# SLAM
slam = ICPSLAM(odom=args.odometry, dsratio=4, device=device)
pointclouds, recovered_poses = slam(rgbdimages)
# visualization
o3d.visualization.draw_geometries([pointclouds.open3d(0)])
o3d.visualization.draw_geometries([pointclouds.open3d(1)])
def test_downsample_rgbdimages(self, device):
device = default_to_cpu_if_no_gpu(device)
image = (torch.tensor(
[
[
[0.0, 0.0, 0.0],
[1.0, 1.0, 1.0],
[2.0, 2.0, 2.0],
[3.0, 3.0, 3.0],
],
[
[4.0, 4.0, 4.0],
[5.0, 5.0, 5.0],
[6.0, 6.0, 6.0],
[7.0, 7.0, 7.0],
],
[
[8.0, 8.0, 8.0],
[9.0, 9.0, 9.0],
[10.0, 10.0, 10.0],
[11.0, 11.0, 11.0],
],
],
device=device,
dtype=torch.float,
).unsqueeze(0).unsqueeze(0))
depth = torch.ones_like(image[..., :1])
intrinsics = torch.eye(4).unsqueeze(0).unsqueeze(0).to(device)
poses = torch.eye(4).unsqueeze(0).unsqueeze(0).to(device)
rgbdimages = RGBDImages(image,
depth,
intrinsics,
poses,
channels_first=False).to(device)
ds_ratio = 2
ds_pointclouds = downsample_rgbdimages(rgbdimages, ds_ratio)
groundtruth_points = torch.tensor(
[
[0.0, 0.0, 1.0],
[2.0, 0.0, 1.0],
[0.0, 2.0, 1.0],
[2.0, 2.0, 1.0],
],
device=device,
dtype=torch.float,
).unsqueeze(0)
groundtruth_colors = torch.tensor(
[
[0.0, 0.0, 0.0],
[2.0, 2.0, 2.0],
[8.0, 8.0, 8.0],
[10.0, 10.0, 10.0],
],
device=device,
dtype=torch.float,
).unsqueeze(0)
groundtruth_normals = rgbdimages.normal_map[
..., ::ds_ratio, ::ds_ratio, :]
groundtruth_normals = groundtruth_normals.reshape(
1, ds_pointclouds.normals_padded.shape[1], 3)
assert ds_pointclouds.points_padded.shape == groundtruth_points.shape
assert ds_pointclouds.colors_padded.shape == groundtruth_colors.shape
assert ds_pointclouds.normals_padded.shape == groundtruth_normals.shape
assert_allclose(ds_pointclouds.points_padded, groundtruth_points)
assert_allclose(ds_pointclouds.colors_padded, groundtruth_colors)
assert_allclose(ds_pointclouds.normals_padded, groundtruth_normals)
