A method of tracking a region of interest in a sequence of video frames

摘要

A method of tracking a region of interest in a sequence of video frames, the method comprising performing a search to locate a region of interest (52) in a first frame (50) of the sequence and performing a search to locate a corresponding region of interest in a subsequent frame (60) of the sequence, characterised in that the search in the subsequent frame (60) is commenced in an area of the subsequent frame (60) which relates to an area in the first frame (50) in which a region of interest (52) was identified by the search of the first frame (50).