UMHexagonS算法的优化研究

Research and Optimization of UMHexagonS algorithm

研究了H.264视频压缩标准中的UMHexagonS算法,根据宏块特征、搜索范围以及预测运动矢量等的相关性,提出了简化搜索过程的改进方法。仿真实验表明,改进后的算法有效降低了H.264运动估计的运算量,使快速运动估计比UMHexagonS算法平均提高50%以上的效率。

This paper introduces the UMHexagonS algorithm and presents an optimal algorithm based on the correlation of the block feature,search range and forecast motion vector.The experimental results show that the efficiency of this optimized algorithm reduces the amount of computation and outperforms UMHexagonS algorithm from H.264 more than 50%.