A region data describing method for describing, over a plurality of frames, region data about the region of an arbitrary object in a video, the method specifying the object region in the video with at least either of an approximate figure approximating the region or characteristic points of the region,...http://www.google.de/patents/US7242792?utm_source=gb-gplus-sharePatent US7242792 - Method of describing object region data, apparatus for generating object region data, video processing apparatus and video processing method
