JeVoisBase  1.18
JeVois Smart Embedded Machine Vision Toolkit Base Modules
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demo.py
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1 # This file is part of OpenCV Zoo project.
2 # It is subject to the license terms in the LICENSE file found in the same directory.
3 #
4 # Copyright (C) 2021, Shenzhen Institute of Artificial Intelligence and Robotics for Society, all rights reserved.
5 # Third party copyrights are property of their respective owners.
6 
7 import argparse
8 
9 import numpy as np
10 import cv2 as cv
11 
12 from dasiamrpn import DaSiamRPN
13 
14 def str2bool(v):
15  if v.lower() in ['on', 'yes', 'true', 'y', 't']:
16  return True
17  elif v.lower() in ['off', 'no', 'false', 'n', 'f']:
18  return False
19  else:
20  raise NotImplementedError
21 
22 parser = argparse.ArgumentParser(
23  description="Distractor-aware Siamese Networks for Visual Object Tracking (https://arxiv.org/abs/1808.06048)")
24 parser.add_argument('--input', '-i', type=str, help='Path to the input video. Omit for using default camera.')
25 parser.add_argument('--model_path', type=str, default='object_tracking_dasiamrpn_model_2021nov.onnx', help='Path to dasiamrpn_model.onnx.')
26 parser.add_argument('--kernel_cls1_path', type=str, default='object_tracking_dasiamrpn_kernel_cls1_2021nov.onnx', help='Path to dasiamrpn_kernel_cls1.onnx.')
27 parser.add_argument('--kernel_r1_path', type=str, default='object_tracking_dasiamrpn_kernel_r1_2021nov.onnx', help='Path to dasiamrpn_kernel_r1.onnx.')
28 parser.add_argument('--save', '-s', type=str2bool, default=False, help='Set true to save results. This flag is invalid when using camera.')
29 parser.add_argument('--vis', '-v', type=str2bool, default=True, help='Set true to open a window for result visualization. This flag is invalid when using camera.')
30 args = parser.parse_args()
31 
32 def visualize(image, bbox, score, isLocated, fps=None, box_color=(0, 255, 0),text_color=(0, 255, 0), fontScale = 1, fontSize = 1):
33  output = image.copy()
34  h, w, _ = output.shape
35 
36  if fps is not None:
37  cv.putText(output, 'FPS: {:.2f}'.format(fps), (0, 30), cv.FONT_HERSHEY_DUPLEX, fontScale, text_color, fontSize)
38 
39  if isLocated and score >= 0.6:
40  # bbox: Tuple of length 4
41  x, y, w, h = bbox
42  cv.rectangle(output, (x, y), (x+w, y+h), box_color, 2)
43  cv.putText(output, '{:.2f}'.format(score), (x, y+20), cv.FONT_HERSHEY_DUPLEX, fontScale, text_color, fontSize)
44  else:
45  text_size, baseline = cv.getTextSize('Target lost!', cv.FONT_HERSHEY_DUPLEX, fontScale, fontSize)
46  text_x = int((w - text_size[0]) / 2)
47  text_y = int((h - text_size[1]) / 2)
48  cv.putText(output, 'Target lost!', (text_x, text_y), cv.FONT_HERSHEY_DUPLEX, fontScale, (0, 0, 255), fontSize)
49 
50  return output
51 
52 if __name__ == '__main__':
53  # Instantiate DaSiamRPN
54  model = DaSiamRPN(
55  model_path=args.model_path,
56  kernel_cls1_path=args.kernel_cls1_path,
57  kernel_r1_path=args.kernel_r1_path
58  )
59 
60  # Read from args.input
61  _input = args.input
62  if args.input is None:
63  device_id = 0
64  _input = device_id
65  video = cv.VideoCapture(_input)
66 
67  # Select an object
68  has_frame, first_frame = video.read()
69  if not has_frame:
70  print('No frames grabbed!')
71  exit()
72  first_frame_copy = first_frame.copy()
73  cv.putText(first_frame_copy, "1. Drag a bounding box to track.", (0, 15), cv.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0))
74  cv.putText(first_frame_copy, "2. Press ENTER to confirm", (0, 35), cv.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0))
75  roi = cv.selectROI('DaSiamRPN Demo', first_frame_copy)
76  print("Selected ROI: {}".format(roi))
77 
78  # Init tracker with ROI
79  model.init(first_frame, roi)
80 
81  # Track frame by frame
82  tm = cv.TickMeter()
83  while cv.waitKey(1) < 0:
84  has_frame, frame = video.read()
85  if not has_frame:
86  print('End of video')
87  break
88  # Inference
89  tm.start()
90  isLocated, bbox, score = model.infer(frame)
91  tm.stop()
92  # Visualize
93  frame = visualize(frame, bbox, score, isLocated, fps=tm.getFPS())
94  cv.imshow('DaSiamRPN Demo', frame)
95  tm.reset()
dasiamrpn.DaSiamRPN
Definition: dasiamrpn.py:10
demo.str2bool
str2bool
Definition: demo.py:43
demo.int
int
Definition: demo.py:37
demo.visualize
def visualize(image, results, box_color=(0, 255, 0), text_color=(0, 0, 255), fps=None)
Definition: demo.py:46