def infer_on_stream(args):
"""
Initialize the inference network, stream video to network,
and output stats and video.
:param args: Command line arguments parsed by `build_argparser()`
:return: None
"""
try:
logging.basicConfig(level=logging.INFO,
format="%(asctime)s [%(levelname)s] %(message)s",
handlers=[
logging.FileHandler("gaze-app.log"),
logging.StreamHandler()
])
# Initialise the class
mc = MouseController("low", "fast")
#mc.move(100,100)
fdnet = FaceDetection(args.fdmodel)
lmnet = FacialLandmarks(args.lmmodel)
hpnet = HeadPoseEstimation(args.hpmodel)
genet = GazeEstimation(args.gemodel)
### Load the model through ###
logging.info("============== Models Load time ===============")
start_time = time.time()
fdnet.load_model()
logging.info("Face Detection Model: {:.1f}ms".format(
1000 * (time.time() - start_time)))
fdnet.check_model()
logging.info("Face Detection estimation layers loaded correctly")
start_time = time.time()
lmnet.load_model()
logging.info("Facial Landmarks Detection Model: {:.1f}ms".format(
1000 * (time.time() - start_time)))
lmnet.check_model()
logging.info("Facial Landmarks estimation layers loaded correctly")
start_time = time.time()
hpnet.load_model()
logging.info("Headpose Estimation Model: {:.1f}ms".format(
1000 * (time.time() - start_time)))
hpnet.check_model()
logging.info("Head pose estimation layers loaded correctly")
start_time = time.time()
genet.load_model()
logging.info("Gaze Estimation Model: {:.1f}ms".format(
1000 * (time.time() - start_time)))
genet.check_model()
logging.info("Gaze estimation layers loaded correctly")
logging.info("============== End =====================")
# Get and open video capture
feeder = InputFeeder('video', args.input)
feeder.load_data()
# FPS = feeder.get_fps()
# Grab the shape of the input
# width = feeder.get_width()
# height = feeder.get_height()
# init scene variables
frame_count = 0
### Loop until stream is over ###
fd_infertime = 0
lm_infertime = 0
hp_infertime = 0
ge_infertime = 0
while True:
# Read the next frame
try:
frame = next(feeder.next_batch())
except StopIteration:
break
key_pressed = cv2.waitKey(60)
frame_count += 1
#print(int((frame_count) % int(FPS)))
# face detection
fd_process_time = time.time()
p_frame = fdnet.preprocess_input(frame)
start_time = time.time()
fnoutput = fdnet.predict(p_frame)
fd_infertime += time.time() - start_time
out_frame, fboxes = fdnet.preprocess_output(
fnoutput, frame, args.print)
logging.info(
"Face Detection Model processing time : {:.1f}ms".format(
1000 * (time.time() - fd_process_time)))
#for each face
for fbox in fboxes:
# fbox = (xmin,ymin,xmax,ymax)
# get face landmarks
# crop face from frame
face = frame[fbox[1]:fbox[3], fbox[0]:fbox[2]]
lm_process_time = time.time()
p_frame = lmnet.preprocess_input(face)
start_time = time.time()
lmoutput = lmnet.predict(p_frame)
lm_infertime += time.time() - start_time
out_frame, left_eye_point, right_eye_point = lmnet.preprocess_output(
lmoutput, fbox, out_frame, args.print)
logging.info(
"Landmarks model processing time : {:.1f}ms".format(
1000 * (time.time() - lm_process_time)))
# get head pose estimation
hp_process_time = time.time()
p_frame = hpnet.preprocess_input(face)
start_time = time.time()
hpoutput = hpnet.predict(p_frame)
hp_infertime += time.time() - start_time
out_frame, headpose_angels = hpnet.preprocess_output(
hpoutput, out_frame, face, fbox, args.print)
logging.info(
"Headpose estimation model processing time : {:.1f}ms".
format(1000 * (time.time() - hp_process_time)))
# get gaze estimation
gaze_process_time = time.time()
out_frame, left_eye, right_eye = genet.preprocess_input(
out_frame, face, left_eye_point, right_eye_point,
args.print)
start_time = time.time()
geoutput = genet.predict(left_eye, right_eye, headpose_angels)
ge_infertime += time.time() - start_time
out_frame, gazevector = genet.preprocess_output(
geoutput, out_frame, fbox, left_eye_point, right_eye_point,
args.print)
logging.info(
"Gaze estimation model processing time : {:.1f}ms".format(
1000 * (time.time() - gaze_process_time)))
if (not args.no_video):
cv2.imshow('im', out_frame)
if (not args.no_move):
mc.move(gazevector[0], gazevector[1])
#consider only first detected face in the frame
break
# Break if escape key pressed
if key_pressed == 27:
break
#logging inference times
if (frame_count > 0):
logging.info(
"============== Models Inference time ===============")
logging.info("Face Detection:{:.1f}ms".format(1000 * fd_infertime /
frame_count))
logging.info("Facial Landmarks Detection:{:.1f}ms".format(
1000 * lm_infertime / frame_count))
logging.info("Headpose Estimation:{:.1f}ms".format(
1000 * hp_infertime / frame_count))
logging.info("Gaze Estimation:{:.1f}ms".format(
1000 * ge_infertime / frame_count))
logging.info("============== End ===============================")
# Release the capture and destroy any OpenCV windows
feeder.close()
cv2.destroyAllWindows()
except Exception as ex:
logging.exception("Error in inference:" + str(ex))
def main():
args = build_argparser().parse_args()
device_name = args.device
prob_threshold = args.prob_threshold
logger_object = log.getLogger()
# Initialize variables with the input arguments
model_path_dict = {
'FaceDetectionModel': args.faceDetectionModel,
'FacialLandmarkModel': args.facialLandmarksModel,
'HeadPoseEstimationModel': args.headPoseEstimationModel,
'GazeEstimationModel': args.gazeEstimationModel
}
# Instantiate model
face_model = FaceDetection(model_path_dict['FaceDetectionModel'], device_name, threshold=prob_threshold)
landmark_model = FacialLandmarksDetection(model_path_dict['FacialLandmarkModel'], device_name,
threshold=prob_threshold)
head_pose_model = HeadPoseEstimation(model_path_dict['HeadPoseEstimationModel'], device_name,
threshold=prob_threshold)
gaze_model = GazeEstimation(model_path_dict['GazeEstimationModel'], device_name, threshold=prob_threshold)
mouse_controller = MouseController('medium', 'fast')
# Load Models and get time
start_time = time.time()
face_model.load_model()
logger_object.error("Face detection model loaded: time: {:.3f} ms".format((time.time() - start_time) * 1000))
first_mark = time.time()
landmark_model.load_model()
logger_object.error(
"Facial landmarks detection model loaded: time: {:.3f} ms".format((time.time() - first_mark) * 1000))
second_mark = time.time()
head_pose_model.load_model()
logger_object.error("Head pose estimation model loaded: time: {:.3f} ms".format((time.time() - second_mark) * 1000))
third_mark = time.time()
gaze_model.load_model()
logger_object.error("Gaze estimation model loaded: time: {:.3f} ms".format((time.time() - third_mark) * 1000))
load_total_time = time.time() - start_time
logger_object.error("Total loading time: time: {:.3f} ms".format(load_total_time * 1000))
logger_object.error("All models are loaded successfully..")
# Check extention of these unsupported layers
face_model.check_model()
landmark_model.check_model()
head_pose_model.check_model()
gaze_model.check_model()
preview_flags = args.previewFlags
input_filename = args.input
output_path = args.output_path
prob_threshold = args.prob_threshold
if input_filename.lower() == 'cam':
input_feeder = InputFeeder(input_type='cam')
else:
if not os.path.isfile(input_filename):
logger_object.error("Unable to find specified video file")
exit(1)
input_feeder = InputFeeder(input_type='video', input_file=input_filename)
for model_path in list(model_path_dict.values()):
if not os.path.isfile(model_path):
logger_object.error("Unable to find specified model file" + str(model_path))
exit(1)
input_feeder.load_data()
width = int(input_feeder.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(input_feeder.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = int(input_feeder.cap.get(cv2.CAP_PROP_FPS))
out_video = cv2.VideoWriter(os.path.join('output_video.mp4'), cv2.VideoWriter_fourcc(*'avc1'), fps,
(width, height), True)
frame_counter = 0
start_inf_time = time.time()
for ret, frame in input_feeder.next_batch():
if not ret:
break
frame_counter += 1
key = cv2.waitKey(60)
try:
cropped_image, face_cords = face_model.predict(frame, prob_threshold)
if type(cropped_image) == int:
print("Unable to detect the face")
if key == 27:
break
continue
left_eye, right_eye, eye_cords = landmark_model.predict(cropped_image)
pose_output = head_pose_model.predict(cropped_image)
x, y, z = gaze_model.predict(left_eye, right_eye, pose_output, cropped_image, eye_cords)
mouse_controller.move(x, y)
except Exception as e:
print(str(e) + " for frame " + str(frame_counter))
continue
image = cv2.resize(frame, (width, height))
if not len(preview_flags) == 0:
preview_frame = frame.copy()
if 'fd' in preview_flags:
if len(preview_flags) != 1:
preview_frame = cropped_image
cv2.rectangle(frame, (face_cords[0], face_cords[1]), (face_cords[2], face_cords[3]), (0, 0, 255), 3)
if 'hp' in preview_flags:
cv2.putText(
frame,
"Pose Angles: yaw= {:.2f} , pitch= {:.2f} , roll= {:.2f}".format(
pose_output[0], pose_output[1], pose_output[2]),
(20, 40),
cv2.FONT_HERSHEY_DUPLEX,
1, (255, 0, 0), 3)
if 'ge' in preview_flags:
cv2.putText(
frame,
"Gaze vector: x= {:.2f} , y= {:.2f} , z= {:.2f}".format(
x, y, z),
(15, 100),
cv2.FONT_HERSHEY_COMPLEX,
1, (0, 255, 0), 3)
image = np.hstack((cv2.resize(frame, (500, 500)), cv2.resize(preview_frame, (500, 500))))
cv2.imshow('preview', image)
out_video.write(image)
if frame_counter % 5 == 0:
mouse_controller.move(x, y)
if key == 27:
break
inference_time = round(time.time() - start_inf_time, 1)
fps = int(frame_counter) / inference_time
logger_object.error("counter {} seconds".format(frame_counter))
logger_object.error("total inference time {} seconds".format(inference_time))
logger_object.error("fps {} frame/second".format(fps))
with open(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'stats.txt'), 'w') as f:
f.write('inference time : ' + str(inference_time) + '\n')
f.write('fps: ' + str(fps) + '\n')
f.write('Models Loading: '+ str(load_total_time) + '\n')
logger_object.error('Video stream ended')
cv2.destroyAllWindows()
input_feeder.close()
head_pose_time = (time.time() - head_start_time) * 1000
facial_landmark_start = time.time()
facial_landmark_model.load_model()
facial_landmark_time = (time.time() - facial_landmark_start) * 1000
gaze_model_start = time.time()
gaze_estimation_model.load_model()
gaze_model_time = (time.time() - gaze_model_start) * 1000
total_loading_time = (time.time() - start_time) * 1000
face_model.check_model()
head_pose_model.check_model()
facial_landmark_model.check_model()
gaze_estimation_model.check_model()
if input_file.lower() == 'cam':
input_feeder = InputFeeder(input_type='cam')
else:
if not os.path.isfile(input_file):
logger.error("Unable to find video file for input")
exit(1)
input_feeder = InputFeeder(input_type='video', input_file=input_file)
input_feeder.load_data()
width = int(input_feeder.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(input_feeder.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = int(input_feeder.cap.get(cv2.CAP_PROP_FPS))
writer = None