Object Tracker

An optical flow based simple object tracker

I recently developed a tracker as part of an assignment which basically uses optical flow to track an object. The process is as follows:

A bounding box is chosen by the user from the first frame.

After the first frame, for each next frame, the following process is followed:

Calculate gradients in both x and y directions.
Use gaussian filter to create the following matrix

Calculate difference between the last frame and the current frame to calculate the following matrix

Calculate the displacements in x and y directions using the following equation

Draw new bounding box on the current image

Demo

References