Tracking pedestrians

Up to this point, we have familiarized ourselves with the concepts of motion detection, object detection, and object tracking. You are probably anxious to put this newfound knowledge to good use in a real-life scenario. Let's do just that by tracking pedestrians in a video from a surveillance camera.

You can find a surveillance video inside the OpenCV repository at samples/data/vtest.avi. A copy of this video is located inside this book's GitHub repository at chapter08/pedestrians.avi.

Let's lay out a plan and then implement the application!

Planning the flow of the application

The application will adhere to the following logic:

1. Capture frames from a video file.
2. Use the first 20 frames...