The Research And The Realization Of MPEG-4' Video Compression Algorithm

Recently, MPEG - 4 has become a very promising technology for video compression, which could enhance the system's quality and capacity. This thesis begins with the introduction and compare of the video compression standard in common use, as well as the explanation of the new technique in MPEG-4. Secondly, the algorithms used in MPEG-4 video compression standard are explored in detail, and we deeply study the algorithms including motion estimation, DCT transform and quantification. In theory, we improve on the algorithm of diamond search in aim to reduce the count amount in the same quality. Meanwhile taking the hardware resource in account we optimize the algorithms of DCT transform and quantification and gain the better performance of the system. And then, realize the MPEG-4 video compression system by the program of C language in VC environment, and use the standard testing sequence to validate well. Finally, replant the program to the DSP, and simulate the algorithm based on the TMS320C6201' core by CCS .