Track

A track is a continuous sequence of object states, representing the object's states over some time period. It typically involves three key stages:

1. Initialization: The track begins when an object is first detected.
2. Update: The track is updated in each subsequent timestep by combining the object's predicted state with new detections that can be linked to the track.
3. Termination: The track ends when the object is no longer detected, has exited the scene, or cannot be tracked further.