Realization Of Video Compression With H.263 Based On DSP

With the development of multimedia information technology, some new technologies such as video phone and video conference, are taken on much interest instead of speech communications. The establishment of H.26x and MPEG video compression standard directs a broad way for the development of multimedia communication industry.H.263 is video standards established by ITU-T for video applications with low bit rate. Besides, Digital Signal Processors (DSP) are used in more and more fields in recent years as a result of developing semiconductor technique and improving computer structure. ADSP-TS101 is one of TigerSHARC series high-performance DSP chip, which is produced by AD. Compared with special image processing chips, the video processing system constructed with DSP is flexible, and the system updates conveniently.This paper introduces the main contents of Recommendation H.263, improves the motion estimation in algorithm, and develops a new method that has less searching points and higher precision. According to the structure and characteristics of high-performance DSP ADSP-TS101, several methods are used to optimize the code program.