Tracking is the problem of estimating the position of an object over consecutive image sequences. This is also further divided into single object tracking and multiple object tracking, however, both single and multi-object tracking require slightly different approaches. In this section, we will see the methods for multi-object tracking, as well as single-object tracking.

The methods for image-based tracking are used in several applications, such as action recognition, self-driving cars, security and surveillance, augmented reality apps, motion capture systems, and video compression techniques. In Augmented Reality (AR) apps, for example, if we want to draw a virtual three-dimensional object on a planar surface, we would want to keep track of the planar surface for a feasible output.

In surveillance or traffic monitoring, tracking vehicles and keeping records of number...