def load_image_sample(self, idx):
frame = json.load(open(self.label_name[idx], 'r'))
pd_name = self.label_name[idx].replace('data', 'output')
pd_name = pd_name.replace('label', 'pred')
if os.path.isfile(pd_name):
frame_pd = json.load(open(pd_name, 'r'))
else:
# No prediction json file found
frame_pd = {'prediction': []}
n_box = len(frame['labels'])
if n_box > self.n_box_limit:
# print("n_box ({}) exceed the limit {}, clip up to
# limit.".format(n_box, self.n_box_limit))
n_box = self.n_box_limit
# Frame level annotations
im_path = os.path.join(self.IM_PATH, frame['name'])
endvid = int(idx + 1 in self.seq_accum)
cam_rot = np.array(frame['extrinsics']['rotation'])
cam_loc = np.array(frame['extrinsics']['location'])
cam_calib = np.array(frame['intrinsics']['cali'])
#cam_focal = np.array(frame['intrinsics']['focal'])
#cam_near_clip = np.array(frame['intrinsics']['nearClip'])
#cam_fov_h = np.array(frame['intrinsics']['fov'])
pose = tu.Pose(cam_loc, cam_rot, not self.use_kitti)
# Object level annotations
if self.phase in ['train', 'val']:
labels = frame['labels'][:n_box]
predictions = frame_pd['prediction'][:n_box]
# Random shuffle data
np.random.seed(777)
np.random.shuffle(labels)
else:
labels = frame['labels']
predictions = frame_pd['prediction']
rois_pd = bh.get_box2d_array(predictions).astype(float)
rois_gt = bh.get_box2d_array(labels).astype(float)
tid = bh.get_label_array(labels, ['id'], (0)).astype(int)
# Dim: H, W, L
dim = bh.get_label_array(labels, ['box3d', 'dimension'],
(0, 3)).astype(float)
# Alpha: -pi ~ pi
alpha = bh.get_label_array(labels, ['box3d', 'alpha'],
(0)).astype(float)
# Location in cam coord: x-right, y-down, z-front
location = bh.get_label_array(labels, ['box3d', 'location'],
(0, 3)).astype(float)
# Center
# f_x, s, cen_x, ext_x
# 0, f_y, cen_y, ext_y
# 0, 0, 1, ext_z
ext_loc = np.hstack([location, np.ones([len(location), 1])]) # (B, 4)
proj_loc = ext_loc.dot(cam_calib.T) # (B, 4) dot (3, 4).T => (B, 3)
center_gt = proj_loc[:, :2] / proj_loc[:, 2:3] # normalize
if self.phase in ['train', 'val']:
# For depth training
#center_pd = center_gt.copy()
# For center training
cenx = (rois_gt[:, 0:1] + rois_gt[:, 2:3]) / 2
ceny = (rois_gt[:, 1:2] + rois_gt[:, 3:4]) / 2
center_pd = np.concatenate([cenx, ceny], axis=1)
else:
center_pd = bh.get_cen_array(predictions)
# Depth
depth = np.maximum(0, location[:, 2])
ignore = bh.get_label_array(labels, ['attributes', 'ignore'],
(0)).astype(int)
# Get n_box_limit batch
rois_gt = np.vstack([rois_gt, np.zeros([self.n_box_limit,
5])])[:self.n_box_limit]
if self.phase in ['train', 'val']:
rois_pd = rois_gt.copy()
rois_pd[:, :4] += np.random.rand(rois_gt.shape[0], 4) * 3
else:
rois_pd = np.vstack([rois_pd,
np.zeros([self.n_box_limit,
5])])[:self.n_box_limit]
tid = np.hstack([tid, np.zeros(self.n_box_limit)])[:self.n_box_limit]
alpha = np.hstack([alpha,
np.zeros(self.n_box_limit)])[:self.n_box_limit]
depth = np.hstack([depth,
np.zeros(self.n_box_limit)])[:self.n_box_limit]
center_pd = np.vstack([center_pd,
np.zeros([self.n_box_limit,
2])])[:self.n_box_limit]
center_gt = np.vstack([center_gt,
np.zeros([self.n_box_limit,
2])])[:self.n_box_limit]
dim = np.vstack([dim, np.zeros([self.n_box_limit,
3])])[:self.n_box_limit]
ignore = np.hstack([ignore,
np.zeros(self.n_box_limit)])[:self.n_box_limit]
# objects center in the world coordinates
loc_gt = tu.point3dcoord(center_gt, depth, cam_calib, pose)
# Load images
img = cv2.imread(im_path)
assert img is not None, "Cannot read {}".format(im_path)
h, w, _ = img.shape
p_h = self.H - h
p_w = self.W - w
assert p_h >= 0, "target hight - image hight = {}".format(p_h)
assert p_w >= 0, "target width - image width = {}".format(p_w)
img = copy_border_reflect(img, p_h, p_w)
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
img_patch = np.rollaxis(img, 2, 0)
img_patch = img_patch.astype(float) / 255.0
# Normalize
if self.is_normalizing:
img_patch = (img_patch - self.mean) / self.std
bin_cls = np.zeros((self.n_box_limit, 2))
bin_res = np.zeros((self.n_box_limit, 2))
for i in range(n_box):
if alpha[i] < np.pi / 6. or alpha[i] > 5 * np.pi / 6.:
bin_cls[i, 0] = 1
bin_res[i, 0] = alpha[i] - (-0.5 * np.pi)
if alpha[i] > -np.pi / 6. or alpha[i] < -5 * np.pi / 6.:
bin_cls[i, 1] = 1
bin_res[i, 1] = alpha[i] - (0.5 * np.pi)
box_info = {
'im_path': im_path,
'rois_pd': torch.from_numpy(rois_pd).float(),
'rois_gt': torch.from_numpy(rois_gt).float(),
'dim_gt': torch.from_numpy(dim).float(),
'bin_cls_gt': torch.from_numpy(bin_cls).long(),
'bin_res_gt': torch.from_numpy(bin_res).float(),
'alpha_gt': torch.from_numpy(alpha).float(),
'depth_gt': torch.from_numpy(depth).float(),
'cen_pd': torch.from_numpy(center_pd).float(),
'cen_gt': torch.from_numpy(center_gt).float(),
'loc_gt': torch.from_numpy(loc_gt).float(),
'tid_gt': torch.from_numpy(tid).int(),
'ignore': torch.from_numpy(ignore).int(),
'n_box': n_box,
'endvid': endvid,
'cam_calib': torch.from_numpy(cam_calib).float(),
'cam_rot': torch.from_numpy(pose.rotation).float(),
'cam_loc': torch.from_numpy(pose.position).float(),
}
return torch.from_numpy(img_patch).float(), box_info
def plot_3D_box(info_gt, info_pd, args, session_name):
if args.draw_bev: print("BEV: {}".format(session_name))
if args.draw_2d or args.draw_3d: print("3D: {}".format(session_name))
# Variables
fig, ax = plt.subplots(figsize=(5, 5), dpi=100)
# set output video
if args.is_save:
vid_trk = cv2.VideoWriter(
'{}_{}_{}_{}.mp4'.format(
session_name, args.box_key, 'tracking',
'_'.join([str(n) for n in args.select_seq])), FOURCC, args.fps,
(resW, resH))
vid_bev = cv2.VideoWriter(
'{}_{}_{}_{}.mp4'.format(
session_name, args.box_key, 'birdsview',
'_'.join([str(n) for n in args.select_seq])), FOURCC, args.fps,
(resH, resH))
else:
vid_trk = None
vid_bev = None
# Iterate through all objects
for n_seq, (pd_seq, gt_seq) in enumerate(zip(info_pd, info_gt)):
id_to_color = {}
cmap = pu.RandomColor(len(gt_seq['frames']))
np.random.seed(777)
if n_seq not in args.select_seq:
continue
for n_frame, (pd_boxes, gt_boxes) in enumerate(
zip(pd_seq['frames'], gt_seq['frames'])):
if n_frame % 100 == 0:
print(n_frame)
# Get objects
if args.draw_3d or args.draw_2d:
rawimg = cv2.imread(gt_boxes['im_path'][0])
cv2.putText(rawimg, '{}'.format(n_frame), (0, 30), FONT, 1,
(0, 0, 0), 2, cv2.LINE_AA)
if len(gt_boxes['annotations']) > 0:
cam_coords = np.array(gt_boxes['annotations'][0]['cam_loc'])
cam_rotation = np.array(gt_boxes['annotations'][0]['cam_rot'])
cam_calib = np.array(gt_boxes['annotations'][0]['cam_calib'])
cam_pose = tu.Pose(cam_coords, cam_rotation)
boxes_pd = [
hypo[args.box_key] for hypo in pd_boxes['hypotheses']
]
for i, anno in enumerate(gt_boxes['annotations']):
tid = anno['id']
box_gt = np.array(anno['box']).astype(int)
h_gt, w_gt, l_gt = anno['dim']
depth_gt = anno['depth']
alpha_gt = anno['alpha']
xc_gt, yc_gt = anno['xc'], anno['yc']
center_gt = np.hstack([
(xc_gt - W // 2) * depth_gt / FOCAL_LENGTH, depth_gt
])
rot_y_gt = tu.alpha2rot_y(alpha_gt, xc_gt - W // 2,
FOCAL_LENGTH)
vol_box_gt = get_3d_box_from_2d(np.array([[xc_gt, yc_gt]]),
np.array([depth_gt]), rot_y_gt,
(h_gt, w_gt, l_gt), cam_calib,
cam_pose)
# Match gt and pd
has_match = len(boxes_pd) != 0
if has_match:
_, idx, valid = tu.matching(
np.array(anno['box']).reshape(-1, 4),
np.array(boxes_pd).reshape(-1, 5)[:, :4], 0.8)
has_match = has_match and valid.item()
hypo = pd_boxes['hypotheses'][idx[0]]
# Get information of gt and pd
box_pd = np.array(hypo[args.box_key]).astype(int)
h_pd, w_pd, l_pd = hypo['dim']
depth_pd = hypo['depth']
alpha_pd = hypo['alpha']
xc_pd, yc_pd = hypo['xc'], hypo['yc']
center_pd = np.hstack([
(xc_pd - W // 2) * depth_pd / FOCAL_LENGTH, depth_pd
])
rot_y_pd = tu.alpha2rot_y(alpha_pd, xc_pd - W // 2,
FOCAL_LENGTH)
vol_box_pd = get_3d_box_from_2d(np.array([[xc_pd, yc_pd]]),
np.array([depth_pd]),
roy_y_pd,
(h_pd, w_pd, l_pd),
cam_calib, cam_pose)
# Get box color
# color is in BGR format (for cv2), color[:-1] in RGB format
# (for plt)
if tid not in list(id_to_color):
id_to_color[tid] = [cmap.get_random_color(scale=255), 10]
else:
id_to_color[tid][1] = 10
color, life = id_to_color[tid]
# Make rectangle
if args.draw_3d:
# Make rectangle
rawimg = tu.draw_3d_cube(rawimg,
vol_box_gt,
tid,
cam_calib,
cam_pose,
line_color=(color[0],
color[1] * 0.7,
color[2] * 0.7),
line_width=2)
if has_match:
rawimg = tu.draw_3d_cube(rawimg,
vol_box_pd,
tid,
cam_calib,
cam_pose,
line_color=color)
if args.draw_2d:
#text_gt = 'GT:{}° {}m'.format(
# int(alpha_gt / np.pi * 180),
# int(depth_gt))
cv2.rectangle(rawimg, (box_gt[0], box_gt[1]),
(box_gt[2], box_gt[3]),
(color[0], color[1] * 0.7, color[2] * 0.7),
8)
if has_match:
#text_pd = 'PD:{}° {}m'.format(
# int(alpha_pd / np.pi * 180),
# int(depth_pd))
cv2.rectangle(rawimg, (box_pd[0], box_pd[1]),
(box_pd[2], box_pd[3]), color, 10)
if args.draw_bev:
# Change BGR to RGB
color_bev = [c / 255.0 for c in color[::-1]]
if has_match:
plot_bev_obj(center_pd, 'PD', rot_y_pd, l_pd, w_pd,
plt, color_bev)
plot_bev_obj(center_gt, 'GT', rot_y_gt, l_gt, w_gt, plt,
color_bev)
if args.draw_bev:
# Make plot
ax.set_aspect('equal', adjustable='box')
plt.axis([-60, 60, -10, 100])
# plt.axis([-80, 80, -10, 150])
plt.plot([0, 0], [0, 3], 'k-')
plt.plot([-1, 0], [2, 3], 'k-')
plt.plot([1, 0], [2, 3], 'k-')
for tid in list(id_to_color):
id_to_color[tid][1] -= 1
if id_to_color[tid][1] < 0:
del id_to_color[tid]
# Plot
if vid_trk:
vid_trk.write(cv2.resize(rawimg, (resW, resH)))
elif args.draw_3d or args.draw_2d:
#draw_img = rawimg[:, :, ::-1]
#fig = plt.figure(figsize=(18, 9), dpi=50)
#plt.imshow(draw_img)
key = 0
while (key not in [ord('q'), ord(' '), 27]):
cv2.imshow('preview', cv2.resize(rawimg, (resW, resH)))
key = cv2.waitKey(1)
if key == 27:
cv2.destroyAllWindows()
return
# Plot
if vid_bev:
fig_data = pu.fig2data(plt.gcf())
vid_bev.write(cv2.resize(fig_data, (resH, resH)))
plt.clf()
elif args.draw_bev:
plt.show()
plt.clf()
if args.is_save:
vid_trk.release()
vid_bev.release()
def update(self, data):
# frame information here
ret = []
self.frame_count += 1
self.cam_rot = data['cam_rot'].squeeze() # In rad
self.cam_coord = data['cam_loc'].squeeze()
if self.frame_count == 1:
self.init_coord = self.cam_coord.copy()
self.cam_coord -= self.init_coord
self.cam_calib = data['cam_calib'].squeeze()
self.cam_pose = tu.Pose(self.cam_coord, self.cam_rot)
# process information
dets, feats, dims, alphas, single_depths, cens, roty, world_coords = \
self.process_info(
data,
det_thresh=self.det_thresh,
max_depth=self.max_depth,
_nms=self.dataset=='gta',
_valid=self.dataset=='gta',
)
# save to current frame
self.current_frame = {
'bbox': dets,
'feat': feats,
'dim': dims,
'alpha': alphas, # in deg
'roty': roty, # in rad
'depth': single_depths,
'center': cens,
'location': world_coords,
'n_obj': len(alphas),
}
# get predicted locations from existing trackers.
trk_dim = self.feat_dim + self.det_dim
trks = np.zeros((len(self.trackers), trk_dim))
# Prediction
for t, trk in enumerate(trks):
if self.kf2d:
pos = self.trackers[t].predict()[0]
else:
pos = self.trackers[t].predict_no_effect()[0]
trk[:self.det_dim] = [pos[0], pos[1], pos[2], pos[3], 1.0]
trk[self.det_dim:] = self.trackers[t].feat
# Association
self.affinity = np.zeros((len(dets), len(trks)), dtype=np.float32)
for d, det in enumerate(dets):
for t, trk in enumerate(trks):
self.affinity[d,
t] += self.iou_affinity_weight * tu.compute_iou(
det[:4], trk[:4])
if self.deep_sort and len(dets) * len(trks) > 0:
self.affinity += self.feat_affinity_weight * tu.compute_cos_dis(
feats, trks[:, 5:])
matched, unmatched_dets, unmatched_trks = \
tu.associate_detections_to_trackers(
dets, trks, self.affinity,
self.affinity_threshold)
# update matched trackers with assigned detections
for t, trk in enumerate(self.trackers):
if t in unmatched_trks:
trk.lost = True
continue
d = matched[np.where(matched[:, 1] == t)[0], 0]
trk.update(dets[d, :][0])
trk.det = dets[d, :][0]
trk.feat = self.current_frame['feat'][d[0]]
trk.dim = self.current_frame['dim'][d[0]]
trk.alpha = self.current_frame['alpha'][d[0]]
trk.depth = self.current_frame['depth'][d[0]]
trk.cen = self.current_frame['center'][d[0]]
trk.rot = self.current_frame['roty'][d[0]]
# create and initialise new trackers for unmatched detections
for i in unmatched_dets:
trk = KalmanBoxTracker(dets[i, :])
trk.det = dets[i, :]
trk.feat = self.current_frame['feat'][i]
trk.dim = self.current_frame['dim'][i]
trk.alpha = self.current_frame['alpha'][i]
trk.depth = self.current_frame['depth'][i]
trk.cen = self.current_frame['center'][i]
trk.rot = self.current_frame['roty'][i]
self.trackers.append(trk)
# Check if boxes are correct
if self.visualize:
img = cv2.imread(data['im_path'][0])
h, w, _ = img.shape
img = cv2.putText(img, str(self.frame_count), (20, 30),
cv2.FONT_HERSHEY_COMPLEX, 1, (200, 200, 200), 2)
for idx, trk in enumerate(self.trackers):
box_color = (0, 150, 150) if trk.lost else (0, 255, 0)
box_bold = 2 if trk.lost else 4
box = trk.get_state()[0].astype('int')
print(
trk.id + 1,
'Lost' if trk.lost else 'Tracked',
#trk.aff_value,
trk.depth,
)
if trk.depth < 0 or trk.depth > self.max_depth:
continue
img = cv2.rectangle(img, (box[0], box[1]), (box[2], box[3]),
box_color, box_bold - 1)
img = cv2.putText(img, str(int(trk.id + 1)),
(int(box[0]), int(box[1]) + 20),
cv2.FONT_HERSHEY_COMPLEX, 1, (0, 0, 255), 2)
img = cv2.putText(img, str(int(trk.depth)),
(int(box[2]) - 14, int(box[3])),
cv2.FONT_HERSHEY_COMPLEX, 0.8, (0, 0, 255),
2)
xc = int(trk.cen[0])
yc = int(trk.cen[1])
img = cv2.rectangle(img, (xc - 1, yc - 1), (xc + 1, yc + 1),
(0, 0, 255), box_bold)
for idx, (det, cen) in enumerate(zip(dets, cens)):
det = det.astype('int')
cen = cen.astype('int')
img = cv2.rectangle(img, (det[0], det[1]), (det[2], det[3]),
(255, 0, 0), 2)
img = cv2.rectangle(img, (cen[0] - 1, cen[1] - 1),
(cen[0] + 1, cen[1] + 1), (255, 0, 0), 4)
key = 0
while (key not in [ord('q'), ord(' '), 27]):
cv2.imshow('preview', cv2.resize(img, (0, 0), fx=0.5, fy=0.5))
key = cv2.waitKey(1)
if key == 27:
cv2.destroyAllWindows()
exit()
# Get output returns and remove dead tracklet
i = len(self.trackers)
for trk in reversed(self.trackers):
trk_box = trk.get_state()[0]
if (trk.time_since_update <
1) and (trk.hit_streak >= self.min_hits
or self.frame_count <= self.min_hits):
# +1 as MOT benchmark requires positive
height = float(trk.det[3] - trk.det[1])
width = float(trk.det[2] - trk.det[0])
hypo = {
'height': height,
'width': width,
'trk_box': trk_box.tolist(),
'det_box': trk.det.tolist(),
'id': trk.id + 1,
'x': int(trk.cen[0]),
'y': int(trk.cen[1]),
'dim': trk.dim.tolist(),
'alpha': trk.alpha.item(),
'roty': trk.rot.item(),
'depth': trk.depth.item()
}
ret.append(hypo)
i -= 1
# remove dead tracklet
if trk.time_since_update > self.max_age:
self.trackers.pop(i)
return ret
def update(self, data):
# frame information here
ret = []
self.frame_count += 1
self.cam_rot = data['cam_rot'].squeeze() # In rad
self.cam_coord = data['cam_loc'].squeeze()
if self.frame_count == 1:
self.init_coord = self.cam_coord.copy()
self.cam_coord -= self.init_coord
self.cam_calib = data['cam_calib'].squeeze()
self.cam_pose = tu.Pose(self.cam_coord, self.cam_rot)
# process information
dets, feats, dims, alphas, single_depths, cens, roty, world_coords = \
self.process_info(
data,
det_thresh=self.det_thresh,
max_depth=self.max_depth,
_nms=self.dataset=='carla',
_valid=self.dataset=='carla',
_center=self.dataset=='kitti'
)
# save to current frame
self.current_frame = {
'bbox': dets,
'feat': feats,
'dim': dims,
'alpha': alphas, # in deg
'roty': roty, # in rad
'depth': single_depths,
'center': cens,
'location': world_coords,
'n_obj': len(alphas),
}
# Prediction
# get predicted locations from existing trackers.
trk_locs = np.zeros((len(self.trackers), 3))
trk_dets = np.zeros((len(self.trackers), 5))
trk_dims = np.zeros((len(self.trackers), 3))
trk_rots = np.zeros((len(self.trackers), 1))
trk_feats = np.zeros((len(self.trackers), self.feat_dim))
for t in range(len(trk_locs)):
trk_locs[t] = self.trackers[t].predict().squeeze()
trk_dets[t] = self.trackers[t].det
trk_dims[t] = self.trackers[t].dim
trk_rots[t] = self.trackers[t].rot
trk_feats[t] = self.trackers[t].feat
trk_cen = tu.projection3d(self.cam_calib, self.cam_pose, trk_locs[t:t+1])
self.trackers[t].cen = trk_cen.squeeze()
# Generate 2D boxes from 3D estimated location
trkboxes, trkdepths, trkpoints = tu.construct2dlayout(trk_locs, trk_dims, trk_rots,
self.cam_calib,
self.cam_pose)
detboxes, detdepths, detpoints = tu.construct2dlayout(world_coords, dims, roty,
self.cam_calib,
self.cam_pose)
# Association
idxes_order = np.argsort(trkdepths)
boxes_order = []
for idx in idxes_order:
if self.use_occ:
# Check if trk box has occluded by others
if boxes_order != []:
# Sort boxes
box = trkboxes[idx]
ious = []
for bo in boxes_order:
ious.append(tu.compute_iou(bo, box))
# Check if occluded
self.trackers[idx].occ = (max(ious) > self.occ_iou_thresh)
boxes_order.append(trkboxes[idx])
trk_depths_order = np.array(trkdepths)[idxes_order]
trk_feats_order = trk_feats[idxes_order]
trk_dim_order = trk_dims[idxes_order]
coord_affinity = np.zeros((len(detboxes), len(boxes_order)),
dtype=np.float32)
feat_affinity = np.zeros((len(detboxes), len(boxes_order)),
dtype=np.float32)
if self.use_occ:
for d, det in enumerate(detboxes):
if len(boxes_order) != 0:
coord_affinity[d, :] = \
tu.compute_boxoverlap_with_depth(
dets[d],
[det[0], det[1], det[2], det[3], 1.0],
detdepths[d],
dims[d],
trk_dets[idxes_order],
boxes_order,
trk_depths_order,
trk_dim_order,
H=self.H,
W=self.W)
else:
for d, det in enumerate(detboxes):
for t, trk in enumerate(boxes_order):
coord_affinity[d, t] += tu.compute_iou(trk, det[:4])
# Filter out those are not overlaped at all
location_mask = (coord_affinity>0)
if self.deep_sort and len(detboxes) * len(boxes_order) > 0:
feat_affinity += location_mask * \
tu.compute_cos_dis(feats, trk_feats_order)
self.affinity = self.coord_3d_affinity_weight * coord_affinity + \
self.feat_affinity_weight * feat_affinity
# Assignment
matched, unmatched_dets, unmatched_trks = \
tu.associate_detections_to_trackers(
detboxes, boxes_order, self.affinity,
self.affinity_threshold)
# update matched trackers with assigned detections
for t, trkidx in enumerate(idxes_order):
if t in unmatched_trks:
self.trackers[trkidx].lost = True
self.trackers[trkidx].aff_value *= 0.9
continue
d = matched[np.where(matched[:, 1] == t)[0], 0]
if self.kf3d:
self.trackers[trkidx].update(world_coords[d[0]])
elif self.lstm3d or self.lstmkf3d:
self.trackers[trkidx].update(world_coords[d[0]])
self.trackers[trkidx].lost = False
self.trackers[trkidx].aff_value = self.affinity[d, t].item()
self.trackers[trkidx].det = dets[d, :][0]
self.trackers[trkidx].trk_box = boxes_order[t]
feat_alpha = 1 - feat_affinity[d, t].item()
self.trackers[trkidx].feat += feat_alpha * (self.current_frame['feat'][d[0]] - self.trackers[trkidx].feat)
self.trackers[trkidx].dim = self.current_frame['dim'][d[0]]
self.trackers[trkidx].alpha = self.current_frame['alpha'][d[0]]
self.trackers[trkidx].depth = self.current_frame['depth'][d[0]]
self.trackers[trkidx].cen = self.current_frame['center'][d[0]]
self.trackers[trkidx].rot = self.current_frame['roty'][d[0]]
# create and initialise new trackers for unmatched detections
for i in unmatched_dets:
if self.kf3d:
trk = KalmanBox3dTracker(world_coords[i])
elif self.lstm3d:
trk = LSTM3dTracker(self.device,
self.lstm,
world_coords[i])
elif self.lstmkf3d:
trk = LSTMKF3dTracker(self.device,
self.lstm,
world_coords[i])
trk.det = dets[i, :]
trk.trk_box = detboxes[i]
trk.feat = self.current_frame['feat'][i]
trk.dim = self.current_frame['dim'][i]
trk.alpha = self.current_frame['alpha'][i]
trk.depth = self.current_frame['depth'][i]
trk.cen = self.current_frame['center'][i]
trk.rot = self.current_frame['roty'][i]
self.trackers.append(trk)
# Check if boxes are correct
if self.visualize:
img = cv2.imread(data['im_path'][0])
_h, _w, _ = img.shape
img = cv2.putText(img, str(self.frame_count), (20, 30),
cv2.FONT_HERSHEY_COMPLEX, 1,
(200, 200, 200), 2)
lost_color = (0, 150, 150)
occ_color = (150, 0, 150)
trk_color = (0, 255, 0)
det_color = (255, 0, 0)
gt_color = (0, 0, 255)
cb = 5
for idx, (box, po, trk) in enumerate(zip(trkboxes, trkpoints, self.trackers)):
box_color = lost_color if trk.lost else trk_color
box_color = occ_color if trk.occ else box_color
box_bold = 2 if trk.lost or trk.occ else 4
box = box.astype('int')
print(trk.id+1,
'Lost' if trk.lost else 'Tracked',
'{:2d}'.format(trk.time_since_update),
'{:.02f} {:.02f}'.format(trk.aff_value, trkdepths[idx]),
trk.get_history()[-1].flatten(),
trk.get_state()
)
if trkdepths[idx] < 0 or trkdepths[idx] > self.max_depth:
continue
'''
for (ii,jj) in po:
img = cv2.line(img, (int(ii[0]), int(ii[1])),
(int(jj[0]), int(jj[1])), box_color, box_bold)
#'''
img = cv2.rectangle(img, (box[0], box[1]), (box[2], box[3]), box_color, box_bold-1)
img = cv2.rectangle(img, (int(trk.cen[0])-cb, int(trk.cen[1])-cb),
(int(trk.cen[0])+cb, int(trk.cen[1])+cb), box_color, box_bold)
img = cv2.putText(img, '{}'.format(trk.id+1), (int(box[0]), int(box[1])+20),
cv2.FONT_HERSHEY_COMPLEX, 1, box_color, box_bold)
img = cv2.putText(img, '{:.02f}'.format(trk.aff_value), (int(box[0]-14), int(box[3])+20),
cv2.FONT_HERSHEY_COMPLEX, 0.8, box_color, box_bold)
img = cv2.putText(img, str(int(trkdepths[idx])), (int(box[2])-14, int(box[3])),
cv2.FONT_HERSHEY_COMPLEX, 0.8, box_color, box_bold)
if len(data['alpha_gt']) > 0:
valid_rots = np.zeros_like(data['alpha_gt'])[:, np.newaxis]
for idx, (alpha, det, center) in enumerate(
zip(data['alpha_gt'], data['rois_gt'], data['center_gt'])):
valid_rots[idx] = tu.alpha2rot_y(
alpha,
center[0] - self.W//2,
FOCAL_LENGTH=self.cam_calib[0][0])
loc_gt = tu.point3dcoord(data['center_gt'], data['depth_gt'], self.cam_calib, self.cam_pose)
if self.dataset == 'kitti':
loc_gt[:, 2] += data['dim_gt'][:, 0] / 2
#bbgt, depgt, ptsgt = tu.construct2dlayout(loc_gt, data['dim_gt'], valid_rots,
# self.cam_calib,
# self.cam_pose)
for idx, (tid, boxgt, cengt) in enumerate(zip(data['tid_gt'], data['rois_gt'], data['center_gt'])):
detgt = boxgt.astype('int')
cengt = cengt.astype('int')
img = cv2.rectangle(img, (detgt[0], detgt[1]), (detgt[2], detgt[3]), gt_color, 2)
img = cv2.rectangle(img, (cengt[0]-cb, cengt[1]-cb), (cengt[0]+cb, cengt[1]+cb), gt_color, 4)
'''
for (ii,jj) in ptsgt[idx]:
img = cv2.line(img, (int(ii[0]), int(ii[1])),
(int(jj[0]), int(jj[1])), gt_color, 2)
#'''
for idx, (det, detbox, detpo, cen) in enumerate(zip(dets, detboxes, detpoints, cens)):
#det = det.astype('int')
detbox = detbox.astype('int')
cen = cen.astype('int')
'''
for (ii,jj) in detpo:
img = cv2.line(img, (int(ii[0]), int(ii[1])),
(int(jj[0]), int(jj[1])), det_color, 2)
#'''
#img = cv2.rectangle(img, (det[0], det[1]), (det[2], det[3]), det_color, 2)
img = cv2.rectangle(img, (detbox[0], detbox[1]), (detbox[2], detbox[3]), det_color, 2)
img = cv2.rectangle(img, (cen[0]-cb, cen[1]-cb), (cen[0]+cb, cen[1]+cb), det_color, 4)
img = cv2.putText(img, str(int(detdepths[idx])), (int(detbox[2])-14, int(detbox[3])),
cv2.FONT_HERSHEY_COMPLEX, 0.8, det_color, 4)
key = 0
while(key not in [ord('q'), ord(' '), 27]):
_f = 0.5 if _h > 600 else 1.0
cv2.imshow('preview', cv2.resize(img, (0, 0), fx=_f, fy=_f))
key = cv2.waitKey(1)
if key == 27:
cv2.destroyAllWindows()
exit()
# Get output returns and remove dead tracklet
i = len(self.trackers)
for trk in reversed(self.trackers):
if self.kf3d:
dep_ = tu.worldtocamera(trk.kf.x[:3].T,
self.cam_pose)[0, 2]
elif self.lstm3d or self.lstmkf3d:
dep_ = tu.worldtocamera(trk.x[:3][np.newaxis],
self.cam_pose)[0, 2]
if (trk.time_since_update < 1) and not trk.occ and (
trk.hit_streak >= self.min_hits or self.frame_count <=
self.min_hits):
# +1 as MOT benchmark requires positive
height = float(trk.det[3] - trk.det[1])
width = float(trk.det[2] - trk.det[0])
hypo = {'height': height,
'width': width,
'trk_box': trk.trk_box.tolist(),
'det_box': trk.det.tolist(),
'id': trk.id + 1,
'x': int(trk.cen[0]),
'y': int(trk.cen[1]),
'dim': trk.dim.tolist(),
'alpha': trk.alpha.item(),
'roty': trk.rot.item(),
'depth': float(dep_)
}
ret.append(hypo)
i -= 1
# remove dead tracklet
if dep_ <= self.occ_min_depth or dep_ >= self.occ_max_depth or \
(trk.time_since_update > self.max_age and not trk.occ):
self.trackers.pop(i)
return ret
