1. A method of analyzing multiple image frames, each frame being represented by a matrix of pixels fed serially from a source for processing, said method comprising: transforming a first frame of pixels in at least one serial neighborhood transformation stage to detect spatial locations associated with a given object therein; retaining indicia of the transformation of the first frame associated with the spatial locations of said object; subsequently transforming a second frame of pixels in at least one serial neighborhood transformation stage to detect spatial locations associated with said object therein; and analyzing the difference between the transformation of the first and second frames to thereby detect changes of said object between frames.