def test_bundle_projection_fixed_internals(scene_synthetic):
reference = scene_synthetic[0].get_reconstruction()
camera_priors = {c.id: c for c in scene_synthetic[0].cameras}
graph = tracking.as_graph(scene_synthetic[5])
# Create the connnections in the reference
for point_id in reference.points.keys():
if point_id in graph:
for shot_id, g_obs in graph[point_id].items():
color = g_obs["feature_color"]
pt = g_obs["feature"]
obs = pysfm.Observation(
pt[0],
pt[1],
g_obs["feature_scale"],
g_obs["feature_id"],
color[0],
color[1],
color[2],
)
reference.map.add_observation(shot_id, point_id, obs)
orig_camera = copy.deepcopy(reference.cameras["1"])
custom_config = config.default_config()
custom_config["bundle_use_gps"] = False
custom_config["optimize_camera_parameters"] = False
reconstruction.bundle(reference, camera_priors, [], custom_config)
assert _projection_errors_std(reference.points) < 5e-3
assert reference.cameras["1"].focal == orig_camera.focal
assert reference.cameras["1"].k1 == orig_camera.k1
assert reference.cameras["1"].k2 == orig_camera.k2
def load_config(self):
config_file_path = self._config_file()
if self.io_handler.isfile(config_file_path):
with self.io_handler.open(config_file_path) as f:
self.config = config.load_config_from_fileobject(f)
else:
self.config = config.default_config()
def test_bundle_alignment_prior():
"""Test that cameras are aligned to have the Y axis pointing down."""
camera = pygeometry.Camera.create_perspective(1.0, 0.0, 0.0)
camera.id = 'camera1'
shot = types.Shot()
shot.id = '1'
shot.camera = camera
shot.pose = types.Pose(np.random.rand(3), np.random.rand(3))
shot.metadata = types.ShotMetadata()
shot.metadata.gps_position = [0, 0, 0]
shot.metadata.gps_dop = 1
r = types.Reconstruction()
r.add_camera(camera)
r.add_shot(shot)
graph = nx.Graph()
camera_priors = {camera.id: camera}
gcp = []
myconfig = config.default_config()
reconstruction.bundle(graph, r, camera_priors, gcp, myconfig)
assert np.allclose(shot.pose.translation, np.zeros(3))
# up vector in camera coordinates is (0, -1, 0)
assert np.allclose(shot.pose.transform([0, 0, 1]), [0, -1, 0])
def test_absolute_pose_single_shot():
"""Single-camera resection on a toy reconstruction with
1/1000 pixel noise and zero outliers."""
parameters = config.default_config()
synthetic_data, synthetic_tracks = synthetic_reconstruction()
shot_id = 'shot1'
camera_id = 'camera1'
metadata = types.ShotMetadata()
camera = synthetic_data.cameras[camera_id]
graph_inliers = nx.Graph()
shot_before = synthetic_data.shots[shot_id]
status, report = reconstruction.resect(synthetic_tracks, graph_inliers,
synthetic_data, shot_id, camera,
metadata,
parameters['resection_threshold'],
parameters['resection_min_inliers'])
shot_after = synthetic_data.shots[shot_id]
assert status is True
assert report['num_inliers'] == len(graph_inliers.edges())
assert report['num_inliers'] is len(synthetic_data.points)
np.testing.assert_almost_equal(shot_before.pose.rotation,
shot_after.pose.rotation, 1)
np.testing.assert_almost_equal(shot_before.pose.translation,
shot_after.pose.translation, 1)
def test_match_using_words():
configuration = config.default_config()
nfeatures = 1000
features, words = example_features(nfeatures, configuration)
matches = pyfeatures.match_using_words(features[0], words[0],
features[1], words[1][:, 0],
configuration['lowes_ratio'],
configuration['bow_num_checks'])
assert len(matches) == nfeatures
for i, j in matches:
assert i == j
def test_robust_match():
d = data_generation.CubeDataset(2, 100, 0.0, 0.3)
p1 = np.array([v['feature'] for k, v in iteritems(d.tracks['shot0'])])
p2 = np.array([v['feature'] for k, v in iteritems(d.tracks['shot1'])])
camera1 = d.shots['shot0'].camera
camera2 = d.shots['shot1'].camera
num_points = len(p1)
inlier_matches = np.array([(i, i) for i in range(num_points)])
outlier_matches = np.random.randint(num_points, size=(num_points // 2, 2))
matches = np.concatenate((inlier_matches, outlier_matches))
rmatches = matching.robust_match(p1, p2, camera1, camera2, matches,
config.default_config())
assert num_points <= len(rmatches) <= len(matches)
def test_bundle_projection_fixed_internals(scene_synthetic):
reference = scene_synthetic[0].get_reconstruction()
graph = scene_synthetic[5]
adjusted = copy.deepcopy(reference)
custom_config = config.default_config()
custom_config['bundle_use_gps'] = False
custom_config['optimize_camera_parameters'] = False
reconstruction.bundle(graph, adjusted, {}, custom_config)
assert _projection_errors_std(adjusted.points) < 5e-3
assert reference.cameras['1'].focal == adjusted.cameras['1'].focal
assert reference.cameras['1'].k1 == adjusted.cameras['1'].k1
assert reference.cameras['1'].k2 == adjusted.cameras['1'].k2
def SfM_config(src, args):
file = src + '/config.yaml'
from opensfm.config import default_config
if os.path.isfile(file):
with open(file) as f:
cfg = yaml.safe_load(f)
else:
cfg = default_config() # cfg=dict
if type(args) == str and os.path.isfile(args):
with open(args) as f:
args = yaml.safe_load(f)
if type(args) == dict: cfg.update(args)
if cfg['feature_type'] == 'ORB': cfg['matcher_type'] = 'BRUTEFORCE'
feat_size(src, cfg) # cfg['feature_process_size']
with open(file, 'w') as f: # update config.yaml
f.write(yaml.dump(cfg, default_flow_style=False))
def test_absolute_pose_generalized_shot():
"""Whole reconstruction resection (generalized pose) on a toy
reconstruction with 0.01 meter point noise and zero outliers."""
noise = 0.01
parameters = config.default_config()
scene, tracks = synthetic_reconstruction()
cluster1, cluster2 = split_synthetic_reconstruction(
scene, tracks, 3, noise)
cluster2, translation, scale = move_and_scale_cluster(cluster2)
status, T, inliers = reconstruction.\
resect_reconstruction(cluster1, cluster2,
tracks, tracks,
2*noise,
parameters['resection_min_inliers'])
assert status is True
s, A, b = multiview.decompose_similarity_transform(T)
np.testing.assert_almost_equal(scale, s, 2)
np.testing.assert_almost_equal(np.eye(3), A, 2)
np.testing.assert_almost_equal(translation, b, 2)
def test_bundle_alignment_prior():
"""Test that cameras are aligned to have the Y axis pointing down."""
camera = pygeometry.Camera.create_perspective(1.0, 0.0, 0.0)
camera.id = "camera1"
r = types.Reconstruction()
r.add_camera(camera)
shot = r.create_shot("1", camera.id,
pygeometry.Pose(np.random.rand(3), np.random.rand(3)))
shot.metadata.gps_position.value = [0, 0, 0]
shot.metadata.gps_accuracy.value = 1
camera_priors = {camera.id: camera}
gcp = []
myconfig = config.default_config()
reconstruction.bundle(r, camera_priors, gcp, myconfig)
shot = r.shots[shot.id]
assert np.allclose(shot.pose.translation, np.zeros(3))
# up vector in camera coordinates is (0, -1, 0)
assert np.allclose(shot.pose.transform([0, 0, 1]), [0, -1, 0])
def test_bundle_void_gps_ignored() -> None:
"""Test that void gps values are ignored."""
camera = pygeometry.Camera.create_perspective(1.0, 0.0, 0.0)
camera.id = "camera1"
r = types.Reconstruction()
r.add_camera(camera)
shot = r.create_shot("1", camera.id,
pygeometry.Pose(np.random.rand(3), np.random.rand(3)))
camera_priors = {camera.id: camera}
rig_priors = dict(r.rig_cameras.items())
gcp = []
myconfig = config.default_config()
# Missing position
shot.metadata.gps_position.value = np.zeros(3)
shot.metadata.gps_accuracy.value = 1
shot.metadata.gps_position.reset()
shot.pose.set_origin(np.ones(3))
reconstruction.bundle(r, camera_priors, rig_priors, gcp, myconfig)
assert np.allclose(shot.pose.get_origin(), np.ones(3))
# Missing accuracy
shot.metadata.gps_position.value = np.zeros(3)
shot.metadata.gps_accuracy.value = 1
shot.metadata.gps_accuracy.reset()
shot.pose.set_origin(np.ones(3))
reconstruction.bundle(r, camera_priors, rig_priors, gcp, myconfig)
assert np.allclose(shot.pose.get_origin(), np.ones(3))
# Valid gps position and accuracy
shot.metadata.gps_position.value = np.zeros(3)
shot.metadata.gps_accuracy.value = 1
shot.pose.set_origin(np.ones(3))
reconstruction.bundle(r, camera_priors, rig_priors, gcp, myconfig)
assert np.allclose(shot.pose.get_origin(), np.zeros(3))
def test_absolute_pose_single_shot():
"""Single-camera resection on a toy reconstruction with
1/1000 pixel noise and zero outliers."""
parameters = config.default_config()
synthetic_data, synthetic_tracks = synthetic_reconstruction()
shot_id = 'shot1'
camera_id = 'camera1'
metadata = types.ShotMetadata()
camera = synthetic_data.cameras[camera_id]
shot_before = synthetic_data.shots[shot_id]
status, report = reconstruction.resect(synthetic_tracks, synthetic_data,
shot_id, camera, metadata,
parameters['resection_threshold'],
parameters['resection_min_inliers'])
shot_after = synthetic_data.shots[shot_id]
assert status is True
assert report['num_inliers'] is len(synthetic_data.points)
np.testing.assert_almost_equal(
shot_before.pose.rotation, shot_after.pose.rotation, 1)
np.testing.assert_almost_equal(
shot_before.pose.translation, shot_after.pose.translation, 1)
def test_bundle_alignment_prior() -> None:
"""Test that cameras are aligned to have the Y axis pointing down."""
camera = pygeometry.Camera.create_perspective(1.0, 0.0, 0.0)
camera.id = "camera1"
r = types.Reconstruction()
r.add_camera(camera)
shot = r.create_shot("1", camera.id,
pygeometry.Pose(np.random.rand(3), np.random.rand(3)))
# pyre-fixme[8]: Attribute has type `ndarray`; used as `List[int]`.
shot.metadata.gps_position.value = [0, 0, 0]
shot.metadata.gps_accuracy.value = 1
camera_priors = {camera.id: camera}
rig_priors = dict(r.rig_cameras.items())
gcp = []
myconfig = config.default_config()
reconstruction.bundle(r, camera_priors, rig_priors, gcp, myconfig)
shot = r.shots[shot.id]
assert np.allclose(shot.pose.translation, np.zeros(3))
# up vector in camera coordinates is (0, -1, 0)
assert np.allclose(shot.pose.transform([0, 0, 1]), [0, -1, 0], atol=1e-7)
def test_example_features():
nfeatures = 1000
features, words = example_features(nfeatures, config.default_config())
assert len(features[0]) == nfeatures
assert len(words[0]) == nfeatures
