def process_peter(scheme, optim, calib_folder, video_folder, pose_3d_folder,
video_3d_folder, out_folder, cam_regex, video_ext):
vid_fnames_2d = glob(os.path.join(video_folder, "*." + video_ext))
vid_fnames_3d = glob(os.path.join(video_3d_folder, "*." + video_ext))
vid_fnames_3d = sorted(vid_fnames_3d, key=natural_keys)
fnames_2d = defaultdict(list)
for vid in vid_fnames_2d:
vidname = tools.videoname_from_regex(cam_regex, vid)
fnames_2d[vidname].append(vid)
fnames_3d = defaultdict(list)
for vid in vid_fnames_3d:
vidname = true_basename(vid)
fnames_3d[vidname].append(vid)
calib_fname = os.path.join(calib_folder, 'calibration.toml')
cgroup = CameraGroup.load(calib_fname)
if len(vid_fnames_3d) > 0:
os.makedirs(out_folder, exist_ok=True)
for vid_fname in vid_fnames_3d:
basename = true_basename(vid_fname)
out_fname = os.path.join(out_folder, basename + "." + video_ext)
pose_fname = os.path.join(pose_3d_folder, basename + ".csv")
if not os.path.exists(pose_fname):
print(out_fname, 'missing 3d data')
continue
if len(fnames_2d[basename]) == 0:
print(out_fname, 'missing 2d videos')
continue
if len(fnames_3d[basename]) == 0:
print(out_fname, 'missing 3d videos')
continue
fname_3d_current = fnames_3d[basename][0]
fnames_2d_current = fnames_2d[basename]
fnames_2d_current = sorted(fnames_2d_current, key=natural_keys)
cam_names = [
tools.camname_from_regex(cam_regex, fname)
for fname in fnames_2d_current
]
offsets_dict = load_offsets_dict({}, cam_names, video_folder)
cgroup_subset = cgroup.subset_cameras_names(cam_names)
visualize_combined(scheme, optim, pose_fname, cgroup_subset,
offsets_dict, fnames_2d_current, fname_3d_current,
out_fname)
def get_all_videos_fnames(config):
vids_fnames = process_all(config, get_videos_fnames)
cam_videos = defaultdict(list)
for key, (session_path, fnames) in vids_fnames.items():
for fname in fnames:
# print(fname)
vidname = get_video_name(config, fname)
k = (key, session_path, vidname)
cam_videos[k].append(fname)
vid_names = sorted(cam_videos.keys(), key=lambda x: natural_keys(x[2]))
all_fnames = []
calib_fnames = []
for name in tqdm(vid_names, desc='get videos', ncols=80):
(key, session_path, vidname) = name
fnames = sorted(cam_videos[name], key=natural_keys)
cam_names = [get_cam_name(config, f) for f in fnames]
cgroup = None
calib_folder = find_calibration_folder(config, session_path)
if calib_folder is not None:
calib_fname = os.path.join(
calib_folder, config['pipeline']['calibration_results'],
'calibration.toml')
if os.path.exists(calib_fname):
cgroup = CameraGroup.load(calib_fname)
# pose_fname = os.path.join(session_path, config['pipeline']['pose_3d'],
# vidname+'.csv')
if cgroup is None: # or not os.path.exists(pose_fname):
continue
calib_fnames.append(calib_fname)
all_fnames.append(fnames)
normal_count = max([len(x) for x in all_fnames])
bad_num = np.sum([len(x) != normal_count for x in all_fnames])
if bad_num > 0:
print(
'W: ignored {} sets of videos with inconsistent number of cameras'.
format(bad_num))
all_fnames = [x for x in all_fnames if len(x) == normal_count]
out = {
'fnames': all_fnames,
'calib_fnames': calib_fnames,
'cam_names': cam_names
}
return out
def process_peter(calibration_path,
board,
cam_regex,
fisheye=False,
video_ext='avi'):
videos = glob(os.path.join(calibration_path,'*.' +video_ext))
videos = sorted(videos)
cam_videos = defaultdict(list)
cam_names = set()
for vid in videos:
name = tools.camname_from_regex(cam_regex, vid)
cam_videos[name].append(vid)
cam_names.add(name)
cam_names = sorted(cam_names)
cgroup = CameraGroup.from_names(cam_names, fisheye)
video_list = [sorted(cam_videos[cname]) for cname in cam_names]
if len(videos) == 0:
print('no videos or calibration file found, continuing...')
return
rows_fname = os.path.join(calibration_path, 'detections.pickle')
if os.path.exists(rows_fname):
with open(rows_fname, 'rb') as f:
all_rows = pickle.load(f)
else:
all_rows = cgroup.get_rows_videos(video_list, board)
with open(rows_fname, 'wb') as f:
pickle.dump(all_rows, f)
cgroup.set_camera_sizes_videos(video_list)
cgroup.calibrate_rows(all_rows, board,
init_extrinsics=True,
init_intrinsics=True,
max_nfev=100, n_iters=2,
n_samp_iter=100, n_samp_full=300,
verbose=True)
error = cgroup.calibrate_rows(all_rows, board,
init_intrinsics=False, init_extrinsics=False,
max_nfev=100, n_iters=10,
n_samp_iter=100, n_samp_full=1000,
verbose=True)
cgroup.metadata['adjusted'] = False
if error is not None:
cgroup.metadata['error'] = float(error)
outname = os.path.join(calibration_path, 'calibration.toml')
cgroup.dump(outname)
print(outname)
def load_2d_projections(session_path, fname):
calib_fname = os.path.join(session_path, "Calibration", "calibration.toml")
cgroup = CameraGroup.load(calib_fname)
config_fname = os.path.join(session_path, "config.toml")
config = toml.load(config_fname)
data = pd.read_csv(fname)
M = np.identity(3)
center = np.zeros(3)
for i in range(3):
center[i] = np.mean(data['center_{}'.format(i)])
for j in range(3):
M[i, j] = np.mean(data['M_{}{}'.format(i, j)])
cols = [x for x in data.columns if '_error' in x]
bodyparts = [c.replace('_error', '') for c in cols]
vecs = []
for bp in bodyparts:
vec = np.array(data[[bp+'_x', bp+'_y', bp+'_z']])
vecs.append(vec)
p3d = np.array(vecs).swapaxes(0, 1)
# project to 2d
n_cams = len(cgroup.cameras)
n_frames, n_joints, _ = p3d.shape
all_points_flat = p3d.reshape(-1, 3)
all_points_flat_t = (all_points_flat + center).dot(np.linalg.inv(M.T))
points_2d_proj_flat = cgroup.project(all_points_flat_t)
points_2d_proj = points_2d_proj_flat.reshape(n_cams, n_frames, n_joints, 2)
# points_2d_proj = points_2d_proj.swapaxes(0, 1)
cam_names = cgroup.get_names()
offsets = [config['cameras'][name]['offset'] for name in cam_names]
for i in range(n_cams):
dx = offsets[i][0]
dy = offsets[i][1]
points_2d_proj[i, :, :, 0] -= dx
points_2d_proj[i, :, :, 1] -= dy
points_2d_proj = np.int32(np.round(points_2d_proj))
out = dict()
for i, cname in enumerate(cam_names):
out[cname] = points_2d_proj[i].tolist()
return out
def load_2d_projections(session, folders, fname):
config = get_config(session)
pipeline_calibration_videos = config.get('pipeline', {}).get('calibration_videos', 'calibration')
search_path = os.path.normpath(safe_join(prefix, session, *folders))
calib_folder = find_calibration_folder(config, search_path)
calib_fname = safe_join(calib_folder, pipeline_calibration_videos, "calibration.toml")
cgroup = CameraGroup.load(os.path.normpath(calib_fname))
offsets_dict = load_offsets_dict(config, cgroup.get_names())
bodyparts, points_2d_proj, all_scores = get_projected_points(
config, fname, cgroup, offsets_dict)
cam_names = cgroup.get_names()
points_2d_proj[~np.isfinite(points_2d_proj)] = 0
points_2d_proj = np.int32(np.round(points_2d_proj))
out = dict()
for i, cname in enumerate(cam_names):
out[cname] = points_2d_proj[i].swapaxes(0,1).tolist()
return out
def process_session(config, session_path):
pipeline_videos_raw = config['pipeline']['videos_raw']
pipeline_pose_3d = config['pipeline']['pose_3d']
pipeline_pose_2d_projected = config['pipeline']['pose_2d_projected']
video_ext = config['video_extension']
vid_fnames_2d = glob(
os.path.join(session_path, pipeline_videos_raw, "*." + video_ext))
vid_fnames_2d = sorted(vid_fnames_2d, key=natural_keys)
pose_fnames_3d = glob(os.path.join(session_path, pipeline_pose_3d,
"*.csv"))
pose_fnames_3d = sorted(pose_fnames_3d, key=natural_keys)
if len(pose_fnames_3d) == 0:
return
fnames_2d = defaultdict(list)
for vid in vid_fnames_2d:
vidname = get_video_name(config, vid)
fnames_2d[vidname].append(vid)
fnames_3d = defaultdict(list)
for fname in pose_fnames_3d:
vidname = true_basename(fname)
fnames_3d[vidname].append(fname)
cgroup = None
calib_folder = find_calibration_folder(config, session_path)
if calib_folder is not None:
calib_fname = os.path.join(calib_folder,
config['pipeline']['calibration_results'],
'calibration.toml')
if os.path.exists(calib_fname):
cgroup = CameraGroup.load(calib_fname)
if cgroup is None:
print(
'session {}: no calibration found, skipping'.format(session_path))
return
outdir = os.path.join(session_path, pipeline_pose_2d_projected)
os.makedirs(outdir, exist_ok=True)
for pose_fname in pose_fnames_3d:
basename = true_basename(pose_fname)
if len(fnames_2d[basename]) == 0:
print(pose_fname, 'missing raw videos')
continue
fname_3d_current = pose_fname
fnames_2d_current = fnames_2d[basename]
fnames_2d_current = sorted(fnames_2d_current, key=natural_keys)
out_fnames = [
os.path.join(outdir,
true_basename(fname) + '.h5')
for fname in fnames_2d_current
]
if all([os.path.exists(f) for f in out_fnames]):
continue
print(pose_fname)
cam_names = [
get_cam_name(config, fname) for fname in fnames_2d_current
]
video_folder = os.path.join(session_path, pipeline_videos_raw)
offsets_dict = load_offsets_dict(config, cam_names, video_folder)
cgroup_subset = cgroup.subset_cameras_names(cam_names)
bodyparts, points_2d_proj, all_scores = get_projected_points(
config, fname_3d_current, cgroup_subset, offsets_dict)
metadata = {
'scorer': 'scorer',
'bodyparts': bodyparts,
'index': np.arange(points_2d_proj.shape[2])
}
n_cams, n_joints, n_frames, _ = points_2d_proj.shape
pts = np.zeros((n_frames, n_joints, 3), dtype='float64')
for cix, (cname, outname) in enumerate(zip(cam_names, out_fnames)):
pts[:, :, :2] = points_2d_proj[cix].swapaxes(0, 1)
pts[:, :, 2] = all_scores.T
write_pose_2d(pts, metadata, outname)
def process_session(config, session_path):
# filtered = config['filter']['enabled']
# if filtered:
# pipeline_videos_labeled_2d = config['pipeline']['videos_labeled_2d_filter']
# else:
# pipeline_videos_labeled_2d = config['pipeline']['videos_labeled_2d']
pipeline_videos_labeled_3d = config['pipeline']['videos_labeled_3d']
pipeline_videos_raw = config['pipeline']['videos_raw']
# pipeline_angles = config['pipeline']['angles']
if config['filter3d']['enabled']:
pipeline_pose_3d = config['pipeline']['pose_3d_filter']
else:
pipeline_pose_3d = config['pipeline']['pose_3d']
pipeline_videos_combined = config['pipeline']['videos_combined']
video_ext = config['video_extension']
vid_fnames_2d = glob(
os.path.join(session_path, pipeline_videos_raw, "*." + video_ext))
# vid_fnames_2d = glob(os.path.join(session_path,
# pipeline_videos_labeled_2d, "*.avi"))
vid_fnames_3d = glob(
os.path.join(session_path, pipeline_videos_labeled_3d, "*.mp4"))
vid_fnames_3d = sorted(vid_fnames_3d, key=natural_keys)
fnames_2d = defaultdict(list)
for vid in vid_fnames_2d:
vidname = get_video_name(config, vid)
fnames_2d[vidname].append(vid)
fnames_3d = defaultdict(list)
for vid in vid_fnames_3d:
vidname = true_basename(vid)
fnames_3d[vidname].append(vid)
cgroup = None
calib_folder = find_calibration_folder(config, session_path)
if calib_folder is not None:
calib_fname = os.path.join(calib_folder,
config['pipeline']['calibration_results'],
'calibration.toml')
if os.path.exists(calib_fname):
cgroup = CameraGroup.load(calib_fname)
# angle_fnames = glob(os.path.join(session_path,
# pipeline_angles, '*.csv'))
# angle_fnames = sorted(angle_fnames, key=natural_keys)
outdir = os.path.join(session_path, pipeline_videos_combined)
if len(vid_fnames_3d) > 0:
os.makedirs(outdir, exist_ok=True)
for vid_fname in vid_fnames_3d:
basename = true_basename(vid_fname)
out_fname = os.path.join(outdir, basename + '.mp4')
pose_fname = os.path.join(session_path, pipeline_pose_3d,
basename + '.csv')
if os.path.exists(out_fname) and \
abs(get_nframes(out_fname) - get_nframes(vid_fname)) < 100:
continue
if not os.path.exists(pose_fname):
print(out_fname, 'missing 3d data')
continue
if len(fnames_2d[basename]) == 0:
print(out_fname, 'missing 2d videos')
continue
if len(fnames_3d[basename]) == 0:
print(out_fname, 'missing 3d videos')
continue
fname_3d_current = fnames_3d[basename][0]
fnames_2d_current = fnames_2d[basename]
fnames_2d_current = sorted(fnames_2d_current, key=natural_keys)
cam_names = [
get_cam_name(config, fname) for fname in fnames_2d_current
]
print(out_fname)
video_folder = os.path.join(session_path, pipeline_videos_raw)
offsets_dict = load_offsets_dict(config, cam_names, video_folder)
cgroup_subset = cgroup.subset_cameras_names(cam_names)
visualize_combined(config, pose_fname, cgroup_subset, offsets_dict,
fnames_2d_current, fname_3d_current, out_fname)
def process_session(config, session_path):
pipeline_calibration_videos = config['pipeline']['calibration_videos']
pipeline_calibration_results = config['pipeline']['calibration_results']
video_ext = config['video_extension']
print(session_path)
calibration_path = find_calibration_folder(config, session_path)
if calibration_path is None:
return
videos = glob(
os.path.join(calibration_path, pipeline_calibration_videos,
'*.' + video_ext))
videos = sorted(videos)
cam_videos = defaultdict(list)
cam_names = set()
for vid in videos:
name = get_cam_name(config, vid)
cam_videos[name].append(vid)
cam_names.add(name)
cam_names = sorted(cam_names)
video_list = [sorted(cam_videos[cname]) for cname in cam_names]
outname_base = 'calibration.toml'
outdir = os.path.join(calibration_path, pipeline_calibration_results)
outname = os.path.join(outdir, outname_base)
print(outname)
skip_calib = False
init_stuff = True
error = None
if os.path.exists(outname):
cgroup = CameraGroup.load(outname)
if (not config['calibration']['animal_calibration']) or \
('adjusted' in cgroup.metadata and cgroup.metadata['adjusted']):
return
else:
skip_calib = True
if 'error' in cgroup.metadata:
error = cgroup.metadata['error']
else:
error = None
init_stuff = False
elif config['calibration']['calibration_init'] is not None:
calib_path = os.path.join(config['path'],
config['calibration']['calibration_init'])
print('loading calibration from: {}'.format(calib_path))
cgroup = CameraGroup.load(calib_path)
init_stuff = False
skip_calib = len(videos) == 0
else:
if len(videos) == 0:
print('no videos or calibration file found, continuing...')
return
cgroup = CameraGroup.from_names(cam_names,
config['calibration']['fisheye'])
board = get_calibration_board(config)
if not skip_calib:
rows_fname = os.path.join(outdir, 'detections.pickle')
if os.path.exists(rows_fname):
with open(rows_fname, 'rb') as f:
all_rows = pickle.load(f)
else:
all_rows = cgroup.get_rows_videos(video_list, board)
with open(rows_fname, 'wb') as f:
pickle.dump(all_rows, f)
cgroup.set_camera_sizes_videos(video_list)
cgroup.calibrate_rows(all_rows,
board,
init_extrinsics=init_stuff,
init_intrinsics=init_stuff,
max_nfev=100,
n_iters=2,
n_samp_iter=100,
n_samp_full=300,
verbose=True)
error = cgroup.calibrate_rows(all_rows,
board,
init_intrinsics=False,
init_extrinsics=False,
max_nfev=100,
n_iters=10,
n_samp_iter=100,
n_samp_full=1000,
verbose=True)
cgroup.metadata['adjusted'] = False
if error is not None:
cgroup.metadata['error'] = float(error)
cgroup.dump(outname)
if config['calibration']['animal_calibration']:
all_points, all_scores, all_cam_names = load_2d_data(
config, calibration_path)
imgp = process_points_for_calibration(all_points, all_scores)
# error = cgroup.bundle_adjust(imgp, threshold=10, ftol=1e-4, loss='huber')
cgroup = cgroup.subset_cameras_names(all_cam_names)
error = cgroup.bundle_adjust_iter(imgp,
ftol=1e-4,
n_iters=10,
n_samp_iter=300,
n_samp_full=1000,
max_nfev=500,
verbose=True)
cgroup.metadata['adjusted'] = True
cgroup.metadata['error'] = float(error)
cgroup.dump(outname)
def get_errors_group(config, group, scorer=None):
if config['filter3d']['enabled']:
pipeline_pose_3d = config['pipeline']['pose_3d_filter']
else:
pipeline_pose_3d = config['pipeline']['pose_3d']
metadatas = dict()
fnames_dict = dict()
cam_names = []
for cname, folder in group:
metadata_fname = os.path.join('labeled-data', folder,
'anipose_metadata.csv')
if scorer is None:
labels_fname = sorted(
glob(os.path.join('labeled-data', folder,
'CollectedData*.h5')))[0]
else:
labels_fname = os.path.join('labeled-data', folder,
'CollectedData_{}.h5'.format(scorer))
metadatas[cname] = pd.read_csv(metadata_fname)
fnames_dict[cname] = labels_fname
cam_names.append(cname)
cam_names = sorted(cam_names)
## TODO: will have to modify this for custom offset per session
offsets_dict = load_offsets_dict(config, cam_names)
print(offsets_dict)
out = load_pose2d_fnames(fnames_dict, offsets_dict, cam_names)
points_labeled = out['points']
bodyparts = out['bodyparts']
metadata = metadatas[cam_names[0]]
n_frames = len(metadata)
n_joints = len(bodyparts)
calib_fnames = np.array(metadata['calib'])
points_3d_pred = np.full((n_frames, n_joints, 3), np.nan, 'float')
points_3d_labeled = np.full((n_frames, n_joints, 3), np.nan, 'float')
reproj_err_pred = np.full((n_frames, n_joints), np.nan, 'float')
reproj_err_labeled = np.full((n_frames, n_joints), np.nan, 'float')
# get predicted 3D points
paths_3d = []
curr_path = None
curr_pose = None
curr_fnum = None
for i in range(n_frames):
row = metadata.iloc[i]
fname = row['video']
fnum = row['framenum']
prefix = os.path.dirname(os.path.dirname(fname))
vidname = get_video_name(config, fname)
pose_path = os.path.join(prefix, pipeline_pose_3d, vidname + '.csv')
paths_3d.append(pose_path)
if curr_path != pose_path:
curr_pose = pd.read_csv(pose_path)
curr_fnum = np.array(curr_pose['fnum'])
curr_path = pose_path
try:
ix = np.where(curr_fnum == fnum)[0][0]
except IndexError:
print("W: frame {} not found in 3D data for video {}".format(
fnum, fname))
continue
row = curr_pose.iloc[ix]
M, center = get_transform(row)
pts = np.array([(row[bp + '_x'], row[bp + '_y'], row[bp + '_z'])
for bp in bodyparts])
pts_t = (pts + center).dot(np.linalg.inv(M.T))
points_3d_pred[i] = pts_t
reproj_err_pred[i] = [row[bp + '_error'] for bp in bodyparts]
# triangulate 3D points from labeled points
# get reprojection errors as well
curr_cgroup = None
curr_calib_fname = None
for i in range(n_frames):
calib_fname = calib_fnames[i]
if curr_calib_fname != calib_fname:
print(calib_fname)
curr_cgroup = CameraGroup.load(calib_fname)
curr_cgroup = curr_cgroup.subset_cameras_names(cam_names)
print(curr_cgroup.get_names())
curr_calib_fname = calib_fname
pts = points_labeled[:, i]
p3d = curr_cgroup.triangulate(pts)
points_3d_labeled[i] = p3d
reproj_err_labeled[i] = curr_cgroup.reprojection_error(p3d,
pts,
mean=True)
# get L2 and reprojection errors
errors = np.linalg.norm(points_3d_labeled - points_3d_pred, axis=2)
# get angles
vecs_pred = dict()
vecs_lab = dict()
for bp_ix, bp in enumerate(bodyparts):
vecs_lab[bp] = points_3d_labeled[:, bp_ix]
vecs_pred[bp] = points_3d_pred[:, bp_ix]
angles = config.get('angles', dict())
# angle_names = sorted(angles.keys())
angles_pred = get_angles(vecs_pred, angles)
angles_lab = get_angles(vecs_lab, angles)
angle_names = sorted(angles_pred.keys())
# save into dataframe
out = pd.DataFrame()
out['pose_path'] = paths_3d
out['framenum'] = metadata['framenum']
out['calib'] = metadata['calib']
out['img'] = metadata['img']
out['video'] = metadata['video']
for ang_name in angle_names:
out[ang_name + '_lab'] = angles_lab[ang_name]
out[ang_name + '_pred'] = angles_pred[ang_name]
out[ang_name + '_error'] = angles_pred[ang_name] - angles_lab[ang_name]
for bp_ix, bp in enumerate(bodyparts):
out[bp + '_x_lab'] = points_3d_labeled[:, bp_ix, 0]
out[bp + '_y_lab'] = points_3d_labeled[:, bp_ix, 1]
out[bp + '_z_lab'] = points_3d_labeled[:, bp_ix, 2]
out[bp + '_reprojerr_lab'] = reproj_err_labeled[:, bp_ix]
out[bp + '_x_pred'] = points_3d_pred[:, bp_ix, 0]
out[bp + '_y_pred'] = points_3d_pred[:, bp_ix, 1]
out[bp + '_z_pred'] = points_3d_pred[:, bp_ix, 2]
out[bp + '_reprojerr_pred'] = reproj_err_pred[:, bp_ix]
out[bp + '_error'] = errors[:, bp_ix]
return out
def load_2d_data(config):
pose_fnames = process_all(config, get_pose2d_fnames)
cam_videos = defaultdict(list)
for key, (session_path, fnames) in pose_fnames.items():
for fname in fnames:
# print(fname)
vidname = get_video_name(config, fname)
k = (key, session_path, vidname)
cam_videos[k].append(fname)
vid_names = sorted(cam_videos.keys())
all_points = []
all_scores = []
all_proj = []
all_fnames = []
calib_fnames = []
for name in tqdm(vid_names, desc='load points', ncols=80):
# for name in vid_names:
(key, session_path, vidname) = name
fnames = sorted(cam_videos[name])
cam_names = [get_cam_name(config, f) for f in fnames]
fname_dict = dict(zip(cam_names, fnames))
cgroup = None
calib_folder = find_calibration_folder(config, session_path)
if calib_folder is not None:
calib_fname = os.path.join(
calib_folder, config['pipeline']['calibration_results'],
'calibration.toml')
if os.path.exists(calib_fname):
cgroup = CameraGroup.load(calib_fname)
pose_fname = os.path.join(session_path, config['pipeline']['pose_3d'],
vidname + '.csv')
if cgroup is None or not os.path.exists(pose_fname):
continue
calib_fnames.append(calib_fname)
video_folder = os.path.join(session_path,
config['pipeline']['videos_raw'])
offsets_dict = load_offsets_dict(config, cam_names, video_folder)
out = load_pose2d_fnames(fname_dict)
points_raw = out['points']
scores = out['scores']
bodyparts = out['bodyparts']
vid_fnames = [
os.path.join(session_path, config['pipeline']['videos_raw'],
true_basename(f) + '.' + config['video_extension'])
for f in fnames
]
points_proj = get_projected_points(bodyparts, pose_fname, cgroup,
offsets_dict)
all_points.append(points_raw)
all_scores.append(scores)
all_proj.append(points_proj)
all_fnames.append(vid_fnames)
out = {
'points': all_points,
'scores': all_scores,
'proj': all_proj,
'fnames': all_fnames,
'cam_names': cam_names,
'calib_fnames': calib_fnames,
'bodyparts': bodyparts
}
return out
def triangulate(config,
calib_folder, video_folder, pose_folder,
fname_dict, output_fname):
cam_names = sorted(fname_dict.keys())
calib_fname = os.path.join(calib_folder, 'calibration.toml')
cgroup = CameraGroup.load(calib_fname)
offsets_dict = load_offsets_dict(config, cam_names, video_folder)
out = load_pose2d_fnames(fname_dict, offsets_dict, cam_names)
all_points_raw = out['points']
all_scores = out['scores']
bodyparts = out['bodyparts']
cgroup = cgroup.subset_cameras_names(cam_names)
n_cams, n_frames, n_joints, _ = all_points_raw.shape
bad = all_scores < config['triangulation']['score_threshold']
all_points_raw[bad] = np.nan
if config['triangulation']['optim']:
constraints = load_constraints(config, bodyparts)
constraints_weak = load_constraints(config, bodyparts, 'constraints_weak')
points_2d = all_points_raw
scores_2d = all_scores
points_shaped = points_2d.reshape(n_cams, n_frames*n_joints, 2)
if config['triangulation']['ransac']:
points_3d_init, _, _, _ = cgroup.triangulate_ransac(points_shaped, progress=True)
else:
points_3d_init = cgroup.triangulate(points_shaped, progress=True)
points_3d_init = points_3d_init.reshape((n_frames, n_joints, 3))
c = np.isfinite(points_3d_init[:, :, 0])
if np.sum(c) < 20:
print("warning: not enough 3D points to run optimization")
points_3d = points_3d_init
else:
points_3d = cgroup.optim_points(
points_2d, points_3d_init,
constraints=constraints,
constraints_weak=constraints_weak,
# scores=scores_2d,
scale_smooth=config['triangulation']['scale_smooth'],
scale_length=config['triangulation']['scale_length'],
scale_length_weak=config['triangulation']['scale_length_weak'],
n_deriv_smooth=config['triangulation']['n_deriv_smooth'],
reproj_error_threshold=config['triangulation']['reproj_error_threshold'],
verbose=True)
points_2d_flat = points_2d.reshape(n_cams, -1, 2)
points_3d_flat = points_3d.reshape(-1, 3)
errors = cgroup.reprojection_error(
points_3d_flat, points_2d_flat, mean=True)
good_points = ~np.isnan(all_points_raw[:, :, :, 0])
num_cams = np.sum(good_points, axis=0).astype('float')
all_points_3d = points_3d
all_errors = errors.reshape(n_frames, n_joints)
all_scores[~good_points] = 2
scores_3d = np.min(all_scores, axis=0)
scores_3d[num_cams < 1] = np.nan
all_errors[num_cams < 1] = np.nan
else:
points_2d = all_points_raw.reshape(n_cams, n_frames*n_joints, 2)
if config['triangulation']['ransac']:
points_3d, picked, p2ds, errors = cgroup.triangulate_ransac(
points_2d, min_cams=3, progress=True)
all_points_picked = p2ds.reshape(n_cams, n_frames, n_joints, 2)
good_points = ~np.isnan(all_points_picked[:, :, :, 0])
num_cams = np.sum(np.sum(picked, axis=0), axis=1)\
.reshape(n_frames, n_joints)\
.astype('float')
else:
points_3d = cgroup.triangulate(points_2d, progress=True)
errors = cgroup.reprojection_error(points_3d, points_2d, mean=True)
good_points = ~np.isnan(all_points_raw[:, :, :, 0])
num_cams = np.sum(good_points, axis=0).astype('float')
all_points_3d = points_3d.reshape(n_frames, n_joints, 3)
all_errors = errors.reshape(n_frames, n_joints)
all_scores[~good_points] = 2
scores_3d = np.min(all_scores, axis=0)
scores_3d[num_cams < 2] = np.nan
all_errors[num_cams < 2] = np.nan
num_cams[num_cams < 2] = np.nan
if 'reference_point' in config['triangulation'] and 'axes' in config['triangulation']:
all_points_3d_adj, M, center = correct_coordinate_frame(config, all_points_3d, bodyparts)
else:
all_points_3d_adj = all_points_3d
M = np.identity(3)
center = np.zeros(3)
dout = pd.DataFrame()
for bp_num, bp in enumerate(bodyparts):
for ax_num, axis in enumerate(['x','y','z']):
dout[bp + '_' + axis] = all_points_3d_adj[:, bp_num, ax_num]
dout[bp + '_error'] = all_errors[:, bp_num]
dout[bp + '_ncams'] = num_cams[:, bp_num]
dout[bp + '_score'] = scores_3d[:, bp_num]
for i in range(3):
for j in range(3):
dout['M_{}{}'.format(i, j)] = M[i, j]
for i in range(3):
dout['center_{}'.format(i)] = center[i]
dout['fnum'] = np.arange(n_frames)
dout.to_csv(output_fname, index=False)