MOTION DETECTION METHOD, VIDEO COMPRESSION METHOD, AND MOTION ESTIMATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a video compression technique that enhances the performance of a digital signal processor(DSP). SOLUTION: The video compression technique is provided which reduces motion estimation computation. A digital signal processing system (processor 400) employs external memory (external memory device 422). Detection speed is improved by loading a succession of refined search windows, which are loaded on-chip. By so doing, the search involves fewer accesses to external memory (422) and so completes in a shorter amount of time.