def track_single_video(self, tracker, video, v_id=0):
r"""
track frames in single video with VOT rules
Arguments
---------
tracker: PipelineBase
pipeline
video: str
video name
v_id: int
video id
"""
vot_float2str = importlib.import_module(
"videoanalyst.evaluation.vot_benchmark.pysot.utils.region",
package="vot_float2str").vot_float2str
regions = []
scores = []
times = []
video = self.dataset[video]
image_files, gt = video['image_files'], video['gt']
start_frame, end_frame, toc = 0, len(image_files), 0
vw = None
for f, image_file in enumerate(tqdm(image_files)):
im = vot_benchmark.get_img(image_file)
im_show = im.copy().astype(np.uint8)
if self._hyper_params["save_video"] and vw is None:
fourcc = cv2.VideoWriter_fourcc(*'MJPG')
video_path = os.path.join(self.save_video_dir,
video['name'] + ".avi")
width, height = im.shape[1], im.shape[0]
vw = cv2.VideoWriter(video_path, fourcc, 25,
(int(width), int(height)))
tic = cv2.getTickCount()
if f == start_frame: # init
cx, cy, w, h = vot_benchmark.get_axis_aligned_bbox(gt[f])
location = vot_benchmark.cxy_wh_2_rect((cx, cy), (w, h))
tracker.init(im, location)
regions.append(1)
scores.append(None)
elif f > start_frame: # tracking
location = tracker.update(im)
regions.append(location)
scores.append(tracker._state["pscore"])
toc += cv2.getTickCount() - tic
if self._hyper_params["save_video"]:
cv2.rectangle(im_show, (int(location[0]), int(location[1])),
(int(location[0] + location[2]),
int(location[1] + location[3])), (255, 0, 0), 2)
cv2.putText(im_show, str(scores[-1]), (40, 40),
cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 255), 2)
vw.write(im_show)
if vw is not None:
vw.release()
toc /= cv2.getTickFrequency()
# save result
result_dir = join(self.save_root_dir, video['name'])
ensure_dir(result_dir)
result_path = join(result_dir, '{:s}_001.txt'.format(video['name']))
with open(result_path, "w") as fin:
for x in regions:
fin.write("{:d}\n".format(x)) if isinstance(x, int) else \
fin.write(','.join([vot_float2str("%.4f", i) for i in x]) + '\n')
result_path = os.path.join(
result_dir, '{}_001_confidence.value'.format(video['name']))
with open(result_path, 'w') as fin:
for x in scores:
fin.write('\n') if x is None else fin.write(
"{:.6f}\n".format(x))
logger.info(
'({:d}) Video: {:12s} Time: {:02.1f}s Speed: {:3.1f}'.format(
v_id, video['name'], toc, f / toc))
return f / toc
def track_single_video(self, tracker, video, v_id=0):
r"""
track frames in single video with VOT rules
Arguments
---------
tracker: PipelineBase
pipeline
video: str
video name
v_id: int
video id
"""
regions = []
video = self.dataset[video]
image_files, gt = video['image_files'], video['gt']
start_frame, end_frame, lost_times, toc = 0, len(image_files), 0, 0
for f, image_file in enumerate(tqdm(image_files)):
im = vot_benchmark.get_img(image_file)
im_show = im.copy().astype(np.uint8)
tic = cv2.getTickCount()
if f == start_frame: # init
cx, cy, w, h = vot_benchmark.get_axis_aligned_bbox(gt[f])
location = vot_benchmark.cxy_wh_2_rect((cx, cy), (w, h))
tracker.init(im, location)
regions.append(1 if 'VOT' in self.dataset_name else gt[f])
gt_polygon = None
pred_polygon = None
elif f > start_frame: # tracking
location = tracker.update(im)
gt_polygon = (gt[f][0], gt[f][1], gt[f][2], gt[f][3], gt[f][4],
gt[f][5], gt[f][6], gt[f][7])
pred_polygon = (location[0], location[1],
location[0] + location[2], location[1],
location[0] + location[2],
location[1] + location[3], location[0],
location[1] + location[3])
b_overlap = vot_benchmark.vot_overlap(
gt_polygon, pred_polygon, (im.shape[1], im.shape[0]))
gt_polygon = ((gt[f][0], gt[f][1]), (gt[f][2], gt[f][3]),
(gt[f][4], gt[f][5]), (gt[f][6], gt[f][7]))
pred_polygon = ((location[0], location[1]),
(location[0] + location[2],
location[1]), (location[0] + location[2],
location[1] + location[3]),
(location[0], location[1] + location[3]))
if b_overlap:
regions.append(location)
else: # lost
regions.append(2)
lost_times += 1
start_frame = f + 5 # skip 5 frames
else: # skip
regions.append(0)
toc += cv2.getTickCount() - tic
toc /= cv2.getTickFrequency()
# save result
result_dir = join(self.save_root_dir, video['name'])
ensure_dir(result_dir)
result_path = join(result_dir, '{:s}_001.txt'.format(video['name']))
with open(result_path, "w") as fin:
for x in regions:
fin.write("{:d}\n".format(x)) if isinstance(x, int) else \
fin.write(','.join([vot_benchmark.vot_float2str("%.4f", i) for i in x]) + '\n')
logger.info(
'({:d}) Video: {:12s} Time: {:02.1f}s Speed: {:3.1f}fps Lost: {:d} '
.format(v_id, video['name'], toc, f / toc, lost_times))
return lost_times, f / toc
def track_single_video(self, tracker, video, v_id=0):
r"""
track frames in single video with VOT rules
Arguments
---------
tracker: PipelineBase
pipeline
video: str
video name
v_id: int
video id
"""
vot_overlap = importlib.import_module(
"videoanalyst.evaluation.vot_benchmark.pysot.utils.region",
package="vot_overlap").vot_overlap
vot_float2str = importlib.import_module(
"videoanalyst.evaluation.vot_benchmark.pysot.utils.region",
package="vot_float2str").vot_float2str
regions = []
video = self.dataset[video]
if self.test_video != '':
# test one special video
if video['name'] != self.test_video:
return 0, 0
image_files, gt = video['image_files'], video['gt']
start_frame, end_frame, lost_times, toc = 0, len(image_files), 0, 0
for f, image_file in enumerate(tqdm(image_files)):
im = vot_benchmark.get_img(image_file)
im_show = im.copy().astype(np.uint8)
tic = cv2.getTickCount()
if f == start_frame: # init
cx, cy, w, h = vot_benchmark.get_axis_aligned_bbox(gt[f])
location = vot_benchmark.cxy_wh_2_rect((cx, cy), (w, h))
tracker.init(im, location, gt[f])
regions.append(1 if 'VOT' in self.dataset_name else gt[f])
gt_polygon = None
pred_polygon = None
if self.vis:
cv2.destroyAllWindows()
elif f > start_frame: # tracking
location = tracker.update(im)
gt_polygon = (gt[f][0], gt[f][1], gt[f][2], gt[f][3], gt[f][4],
gt[f][5], gt[f][6], gt[f][7])
pred_polygon = (location[0], location[1],
location[0] + location[2], location[1],
location[0] + location[2],
location[1] + location[3], location[0],
location[1] + location[3])
b_overlap = vot_overlap(gt_polygon, pred_polygon,
(im.shape[1], im.shape[0]))
gt_polygon = ((gt[f][0], gt[f][1]), (gt[f][2], gt[f][3]),
(gt[f][4], gt[f][5]), (gt[f][6], gt[f][7]))
pred_polygon = ((location[0], location[1]),
(location[0] + location[2],
location[1]), (location[0] + location[2],
location[1] + location[3]),
(location[0], location[1] + location[3]))
# visualization
if self.vis:
cv2.polylines(im_show, [np.array(gt_polygon, np.int).reshape((-1, 1, 2))],
True, (0, 255, 0), 3)
cv2.polylines(im_show, [np.array(pred_polygon, np.int).reshape((-1, 1, 2))],
True, (0, 255, 255), 3)
cv2.putText(im_show, str(f), (40, 40), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 255), 2)
cv2.putText(im_show, str(lost_times), (40, 80), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)
cv2.imshow(video['name'], im_show)
cv2.waitKey(10)
if b_overlap:
regions.append(location)
else: # lost
regions.append(2)
lost_times += 1
start_frame = f + 5 # skip 5 frames
else: # skip
regions.append(0)
toc += cv2.getTickCount() - tic
toc /= cv2.getTickFrequency()
# save result
result_dir = join(self.save_root_dir, video['name'])
ensure_dir(result_dir)
result_path = join(result_dir, '{:s}_001.txt'.format(video['name']))
with open(result_path, "w") as fin:
for x in regions:
fin.write("{:d}\n".format(x)) if isinstance(x, int) else \
fin.write(','.join([vot_float2str("%.4f", i) for i in x]) + '\n')
logger.info(
'({:d}) Video: {:12s} Time: {:02.1f}s Speed: {:3.1f}fps Lost: {:d} '
.format(v_id, video['name'], toc, f / toc, lost_times))
return lost_times, f / toc