FS、4SS、BBGDS、DS、HS、CDHS、MVFAST、PMVFAST、ARPS、ARPS3等多种运动估计算法的比较及对H.264中估计算法的优化。-Comparison of the FS, 4SS, BBGDS, DS, HS, CDHS, MVFAST, PMVFAST, ARPS, ARPS3 other motion estimation algorithm and H.264 estimation algorithm optimization.