运动估计是视频编码的关键技术，其最基本的原理是利用相邻帧间的时间 相关性，通过预测来减少时间冗余度。在实际编码中，为了节省码率，并不传 输每一帧的全部数据，而是利用运动估计求出每一帧与其预测参考帧之间的差 值。运动估计越准确，差值的分布越趋近与零，差值块的能量越小，经过变换、 量化和熵编码后所产生的码流的比特位率也越少。因此，运动估计搜索的准确 程度直接影响到了编码的压缩性能。 -Motion estimation is the key to video encodin

mathworks网站上下的mpeg视频编码程序能正常运行，我对此进行了改进，可以正常运行，已经运行试验过多次。-mathworks site from top to bottom mpeg video encoding programs to resume normal operation, and I had improved, can be normal operation, has been running tests on many occasions.

Video Compression using Content-Based Motion Compensation --------------------------------------------------------- This demo Requires MATLAB (and the Image Processing Toolbox) Tested on MATLAB 7.0 (R14). Run one of the following thr

Context-adaptive binary arithmetic coding (CABAC) is a form of entropy encoding used in the H.264/MPEG-4 AVC and High Efficiency Video Coding (HEVC) standards. It is a lossless compression technique, although the video coding standards in which it is