分数像素运动估计 meaning in Chinese
fme
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- More specifically , this dissertation includes following contents : firstly , based on the analysis of h . 264 , the effect on coding efficiency by the key modules of h . 264 is analyzed . secondly , for the purpose of improving the efficiency of h . 264 encoder , we optimized the h . 264 arithmetic . especially fast motion estimation is improved by using hucmhgs ( hybrid unsymmetrical - cross multi - hexagon - grid search ) for integer pel motion estimation and using cbfps ( center biased fractional pel search ) for fractional pel motion estimation
主要工作包括: ( 1 )研究h . 264标准,分析编码器各模块及其采用的技术细节的计算复杂度,寻求提高编码速度的途经; ( 2 )对h . 264的jm82软件进行算法总体优化处理,尤其对于编码速度的瓶颈? ?运动估计进行改进,采用不对称多六边形网格混合搜索算法hucmhgs进行整数像素运动估计,采用带金字塔搜索模式的中心偏置分数像素搜索算法cbfps进行分数像素运动估计; ( 3 )结合tms320c6416的结构特点,在研究并行优化实现方法的基础之上,对h . 264算法的各个具体模块进行汇编语言编程实现。