def predict_video(detector,
reid_model,
video_file,
scaled,
threshold,
output_dir,
save_images=True,
save_mot_txts=True,
draw_center_traj=False,
secs_interval=10,
do_entrance_counting=False,
camera_id=-1):
video_name = 'mot_output.mp4'
if camera_id != -1:
capture = cv2.VideoCapture(camera_id)
else:
capture = cv2.VideoCapture(video_file)
video_name = os.path.split(video_file)[-1]
# Get Video info : resolution, fps, frame count
width = int(capture.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(capture.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = int(capture.get(cv2.CAP_PROP_FPS))
frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
print("fps: %d, frame_count: %d" % (fps, frame_count))
if not os.path.exists(output_dir):
os.makedirs(output_dir)
out_path = os.path.join(output_dir, video_name)
if not save_images:
video_format = 'mp4v'
fourcc = cv2.VideoWriter_fourcc(*video_format)
writer = cv2.VideoWriter(out_path, fourcc, fps, (width, height))
frame_id = 0
timer = MOTTimer()
results = defaultdict(list)
id_set = set()
interval_id_set = set()
in_id_list = list()
out_id_list = list()
prev_center = dict()
records = list()
entrance = [0, height / 2., width, height / 2.]
video_fps = fps
while (1):
ret, frame = capture.read()
if not ret:
break
timer.tic()
ori_image_shape = list(frame.shape[:2])
pred_dets, pred_xyxys = detector.predict([frame], ori_image_shape,
threshold, scaled)
if len(pred_dets) == 1 and np.sum(pred_dets) == 0:
print('Frame {} has no object, try to modify score threshold.'.
format(frame_id))
timer.toc()
im = frame
else:
# reid process
crops = reid_model.get_crops(pred_xyxys, frame)
tracking_outs = reid_model.predict(crops, pred_dets)
online_tlwhs = tracking_outs['online_tlwhs']
online_scores = tracking_outs['online_scores']
online_ids = tracking_outs['online_ids']
results[0].append(
(frame_id + 1, online_tlwhs, online_scores, online_ids))
# NOTE: just implement flow statistic for one class
result = (frame_id + 1, online_tlwhs, online_scores, online_ids)
statistic = flow_statistic(result, secs_interval,
do_entrance_counting, video_fps,
entrance, id_set, interval_id_set,
in_id_list, out_id_list, prev_center,
records)
id_set = statistic['id_set']
interval_id_set = statistic['interval_id_set']
in_id_list = statistic['in_id_list']
out_id_list = statistic['out_id_list']
prev_center = statistic['prev_center']
records = statistic['records']
timer.toc()
fps = 1. / timer.duration
im = plot_tracking(frame,
online_tlwhs,
online_ids,
online_scores,
frame_id=frame_id,
fps=fps,
do_entrance_counting=do_entrance_counting,
entrance=entrance)
if save_images:
save_dir = os.path.join(output_dir, video_name.split('.')[-2])
if not os.path.exists(save_dir):
os.makedirs(save_dir)
cv2.imwrite(os.path.join(save_dir, '{:05d}.jpg'.format(frame_id)),
im)
else:
writer.write(im)
frame_id += 1
print('detect frame:%d, fps: %f' % (frame_id, fps))
if camera_id != -1:
cv2.imshow('Tracking Detection', im)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
if save_mot_txts:
result_filename = os.path.join(output_dir,
video_name.split('.')[-2] + '.txt')
write_mot_results(result_filename, results)
result_filename = os.path.join(
output_dir,
video_name.split('.')[-2] + '_flow_statistic.txt')
f = open(result_filename, 'w')
for line in records:
f.write(line)
print('Flow statistic save in {}'.format(result_filename))
f.close()
if save_images:
save_dir = os.path.join(output_dir, video_name.split('.')[-2])
cmd_str = 'ffmpeg -f image2 -i {}/%05d.jpg {}'.format(
save_dir, out_path)
os.system(cmd_str)
print('Save video in {}.'.format(out_path))
else:
writer.release()
def predict_video(detector,
video_file,
threshold,
output_dir,
save_images=True,
save_mot_txts=True,
draw_center_traj=False,
secs_interval=10,
do_entrance_counting=False,
camera_id=-1):
video_name = 'mot_output.mp4'
if camera_id != -1:
capture = cv2.VideoCapture(camera_id)
else:
capture = cv2.VideoCapture(video_file)
video_name = os.path.split(video_file)[-1]
# Get Video info : resolution, fps, frame count
width = int(capture.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(capture.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = int(capture.get(cv2.CAP_PROP_FPS))
frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
print("fps: %d, frame_count: %d" % (fps, frame_count))
if not os.path.exists(output_dir):
os.makedirs(output_dir)
out_path = os.path.join(output_dir, video_name)
if not save_images:
video_format = 'mp4v'
fourcc = cv2.VideoWriter_fourcc(*video_format)
writer = cv2.VideoWriter(out_path, fourcc, fps, (width, height))
frame_id = 0
timer = MOTTimer()
results = defaultdict(list) # support single class and multi classes
num_classes = detector.num_classes
data_type = 'mcmot' if num_classes > 1 else 'mot'
ids2names = detector.pred_config.labels
center_traj = None
entrance = None
records = None
if draw_center_traj:
center_traj = [{} for i in range(num_classes)]
if num_classes == 1:
id_set = set()
interval_id_set = set()
in_id_list = list()
out_id_list = list()
prev_center = dict()
records = list()
entrance = [0, height / 2., width, height / 2.]
video_fps = fps
while (1):
ret, frame = capture.read()
if not ret:
break
timer.tic()
online_tlwhs, online_scores, online_ids = detector.predict([frame],
threshold)
timer.toc()
for cls_id in range(num_classes):
results[cls_id].append((frame_id + 1, online_tlwhs[cls_id],
online_scores[cls_id], online_ids[cls_id]))
fps = 1. / timer.duration
# NOTE: just implement flow statistic for one class
if num_classes == 1:
result = (frame_id + 1, online_tlwhs[0], online_scores[0],
online_ids[0])
statistic = flow_statistic(result, secs_interval,
do_entrance_counting, video_fps,
entrance, id_set, interval_id_set,
in_id_list, out_id_list, prev_center,
records, data_type, num_classes)
id_set = statistic['id_set']
interval_id_set = statistic['interval_id_set']
in_id_list = statistic['in_id_list']
out_id_list = statistic['out_id_list']
prev_center = statistic['prev_center']
records = statistic['records']
elif num_classes > 1 and do_entrance_counting:
raise NotImplementedError(
'Multi-class flow counting is not implemented now!')
im = plot_tracking_dict(frame,
num_classes,
online_tlwhs,
online_ids,
online_scores,
frame_id=frame_id,
fps=fps,
ids2names=ids2names,
do_entrance_counting=do_entrance_counting,
entrance=entrance,
records=records,
center_traj=center_traj)
if save_images:
save_dir = os.path.join(output_dir, video_name.split('.')[-2])
if not os.path.exists(save_dir):
os.makedirs(save_dir)
cv2.imwrite(os.path.join(save_dir, '{:05d}.jpg'.format(frame_id)),
im)
else:
writer.write(im)
frame_id += 1
print('detect frame: %d, fps: %f' % (frame_id, fps))
if camera_id != -1:
cv2.imshow('Tracking Detection', im)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
if save_mot_txts:
result_filename = os.path.join(output_dir,
video_name.split('.')[-2] + '.txt')
write_mot_results(result_filename, results, data_type, num_classes)
if num_classes == 1:
result_filename = os.path.join(
output_dir,
video_name.split('.')[-2] + '_flow_statistic.txt')
f = open(result_filename, 'w')
for line in records:
f.write(line)
print('Flow statistic save in {}'.format(result_filename))
f.close()
if save_images:
save_dir = os.path.join(output_dir, video_name.split('.')[-2])
cmd_str = 'ffmpeg -f image2 -i {}/%05d.jpg {}'.format(
save_dir, out_path)
os.system(cmd_str)
print('Save video in {}.'.format(out_path))
else:
writer.release()
def predict_video(self, video_file, camera_id):
video_out_name = 'mot_output.mp4'
if camera_id != -1:
capture = cv2.VideoCapture(camera_id)
else:
capture = cv2.VideoCapture(video_file)
video_out_name = os.path.split(video_file)[-1]
# Get Video info : resolution, fps, frame count
width = int(capture.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(capture.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = int(capture.get(cv2.CAP_PROP_FPS))
frame_count = int(capture.get(cv2.CAP_PROP_FRAME_COUNT))
print("fps: %d, frame_count: %d" % (fps, frame_count))
if not os.path.exists(self.output_dir):
os.makedirs(self.output_dir)
out_path = os.path.join(self.output_dir, video_out_name)
video_format = 'mp4v'
fourcc = cv2.VideoWriter_fourcc(*video_format)
writer = cv2.VideoWriter(out_path, fourcc, fps, (width, height))
frame_id = 1
timer = MOTTimer()
results = defaultdict(list) # support single class and multi classes
num_classes = self.num_classes
data_type = 'mcmot' if num_classes > 1 else 'mot'
ids2names = self.pred_config.labels
center_traj = None
entrance = None
records = None
if self.draw_center_traj:
center_traj = [{} for i in range(num_classes)]
if num_classes == 1:
id_set = set()
interval_id_set = set()
in_id_list = list()
out_id_list = list()
prev_center = dict()
records = list()
entrance = [0, height / 2., width, height / 2.]
video_fps = fps
while (1):
ret, frame = capture.read()
if not ret:
break
if frame_id % 10 == 0:
print('Tracking frame: %d' % (frame_id))
frame_id += 1
timer.tic()
seq_name = video_out_name.split('.')[0]
mot_results = self.predict_image([frame],
visual=False,
seq_name=seq_name)
timer.toc()
online_tlwhs, online_scores, online_ids = mot_results[0]
for cls_id in range(num_classes):
results[cls_id].append(
(frame_id + 1, online_tlwhs[cls_id], online_scores[cls_id],
online_ids[cls_id]))
# NOTE: just implement flow statistic for single class
if num_classes == 1:
result = (frame_id + 1, online_tlwhs[0], online_scores[0],
online_ids[0])
statistic = flow_statistic(result, self.secs_interval,
self.do_entrance_counting,
video_fps, entrance, id_set,
interval_id_set, in_id_list,
out_id_list, prev_center, records,
data_type, num_classes)
records = statistic['records']
fps = 1. / timer.duration
im = plot_tracking_dict(
frame,
num_classes,
online_tlwhs,
online_ids,
online_scores,
frame_id=frame_id,
fps=fps,
ids2names=ids2names,
do_entrance_counting=self.do_entrance_counting,
entrance=entrance,
records=records,
center_traj=center_traj)
writer.write(im)
if camera_id != -1:
cv2.imshow('Mask Detection', im)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
if self.save_mot_txts:
result_filename = os.path.join(
self.output_dir,
video_out_name.split('.')[-2] + '.txt')
write_mot_results(result_filename, results, data_type, num_classes)
if num_classes == 1:
result_filename = os.path.join(
self.output_dir,
video_out_name.split('.')[-2] + '_flow_statistic.txt')
f = open(result_filename, 'w')
for line in records:
f.write(line)
print('Flow statistic save in {}'.format(result_filename))
f.close()
writer.release()