Abstract: Based on fast interger pixel block motion estimation algorithm and its improvement algorithms in H.264, this paper proposes a new Fast Adaptive Multi-Rings Search algorithm(FAMRS). The adaptive multi-rings search rings are made from the motion vector which is gained from motion estimation modes, combining with the small hexagon pattern in center. Experimental results show that the efficiency of this optimized algorithm outperforms UMHexagonS algorithm in H.264.

Key words: motion estimation, optimization, motion vector

摘要： 在H.264中快速整像素运动估计算法及其改进算法的基础上，提出一种快速自适应多环搜索算法。根据多种预测模式获得预测矢量，并以此构造自适应的多圈搜索环，结合中心小六边形模板进行快速运动矢量搜索。实验结果证明，该算法的搜索效率优于H.264现有的UMHexagonS算法。

关键词: 运动估计, 优化, 运动矢量

CLC Number: 

• TP391