| 2. | Afterwards , the simulation of the frequently - used search algorithms will be undertaken , for instance , three step search algorithm , four step search algorithm , new three step search algorithm , diamond search algorithm etc . after the comparison between those search algorithms in terms of accurateness of search and complexity metrics of calculation , it is shown that the diamond search algorithm has the best performance
主要内容有:首先,从mpeg - 4视频编码的核心模块运动估计入手,对常用的四种搜索算法进行了仿真,从搜索准确度和计算复杂度两方面给出对比结果。优化了菱形搜索算法的搜索流程,避免了重复计算。 sad计算时采用提前退出策略,减小了计算量而没有损失搜索准确度。 |
