摘要
为了减小移动视频编码标准(AVS-M)中运动估计模块的复杂度,提出了一种快速、有效的块匹配运动估计算法。该算法充分利用了视频图像中运动矢量场的中心偏置特性和时空相关性,根据运动类型自适应的选择搜索起点和搜索策略,结合改进的搜索模板和高效搜索中止准则,有效地降低了运动估计的运算量。实验结果表明,该算法在保证搜索精度的同时,大大减少了搜索点数。
Motion estimation is the most computationally intensive module in an AVS-M video codecs.A new fast and efficient search algorithm for block motion estimation is proposed in this paper to reduce the computational complexity of the motion estimation.It is composed of the prediction of initial search points,adaptive search modes,and effective half-stop criteria.The algorithm well exploits the spatial-temporal correlation of the video sequences and the motion vector statistic characteristics. Experimental resul...
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2009年第4期550-554,共5页
Journal of Optoelectronics·Laser
