Next: Response Fusion Approach
According to Fig. , a tracking
sequence should be initiated by detecting the target object.
In  it is proposed that selectors should be
employed which are defined as heuristics that selects regions possibly
occupied by the target. Based on this ideas, color and image
differences are used to detect the target in the first image. These
two cues are also used in cases where the target has either i) left
the field of view, or ii) it was occluded for a few frames.