Mp @ Ml Bit-rate Mpeg-2-based Transformation Algorithm

Image compression is a well progressional and prosperous study field, where technology's breakthroughs will bring out further impact on both communication and multimedia fields. For resource limited, the motion-video data stream with high bit-rate value used in MPEG-2 standard can not forward exactly by media. Or for the sake of resource more efficiently utilized, more multi-pass program streams can be forwarded in certain bandwidth. The core technology to resolve all these problems is the bit-rate control of the motion video data-stream used in MPEG-2 standard. The algorithm study is in detail that one channel of video-stream is recompressed by MPEG-2 standard so that its bit-rate will be changed lower. Then, multi-date streams will be processed by the technology of statistical remultiplex. The dynamic signals of every single data-stream' output can drive the values of bit-rate of the corresponding single data-stream.The dissertation relates mainly to the algorithm of bit-rate control and the technology of statistical remultiplex. The technologies in the dissertation mostly include:* The systemic architecture of both video encoding and video decoding principles;* The TV principles and the video part of MPEG-2 standard;* The analysis and the comparison of the algorithm of bit-rate control;* The realization of the algorithm and the evaluation of its results;...