Tracing feature points in a video

We learned in previous chapters that analyzing an image through some of its most distinctive points can lead to effective and efficient computer vision algorithms. This is also true for image sequences in which the motion of some interest points can be used to understand how the different elements of a captured scene move. In this recipe, you will learn how to perform a temporal analysis of a sequence by tracking feature points as they move from frame to frame.

How to do it...

To start the tracking process, the first thing to do is to detect the feature points in an initial frame. You then try to track these points in the next frame. Obviously, since we are dealing with a video sequence, there is a good chance that ...

Get OpenCV 3 Computer Vision Application Programming Cookbook - Third Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.