A VLSI system for difference picture-based motion analysis

A VLSI architecture for a difference picture-based dynamic scene analysis technique that can perform the analysis in real time is proposed. To analyze a dynamic scene, a difference picture is generated for two (previous and current) image frames of the scene taken at contiguous time instants. The entries in difference pictures are assumed to be caused by motion in the scene. Motion-related information about dynamic objects in a scene can be obtained by analyzing the characteristics of the connected region in the corresponding difference picture. The architecture of each processor is simple and can be organized as a multistage linear pipeline with no feedback logic. Regarding the layout space required for the processor logic, simple estimates show that up to 30 processors can be laid out within a single chip