H.264/AVC快速帧间模式选择算法  

Fast inter mode selection algorithm for H.264/AVC

作　　者：丁媛媛[1] 司玉娟[1,2] 董海兵[3] 

机构地区：[1]吉林大学通信工程学院,长春130022 [2]吉林大学珠海学院,电子信息系,广东珠海519041 [3]中国人民解放军某部,长春130000

出　　处：《吉林大学学报（工学版）》2009年第S1期332-336,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划项目(20050515);珠海市科技发展计划项目(PC20051011;PC20061009)

摘　　要：提出了一种针对H.264的快速帧间模式选择算法。该算法从三个方面提高编码效率:SKIP模式提前判决;引入视频分割算法分离前景和背景,确定候选模式;提出了快速帧内模式选择方法。该算法避免了不必要的运动估计和率失真代价(RDO)的计算,节省了编码时间,同时保证了编码质量。A novel inter mode decision algorithm was presented.Three methods were adopted by the algorithm to improve coding efficiency.Firstly, early skip mode decision was employed.Secondly,foreground and background were separated by video segmentation algorithm,so the candidate modes can be decided.Thirdly,a fast intra mode decision algorithm was proposed.It can omit some unnecessary computation of Motion Estimation(ME) and rate distortion optimization(RDO).Thus,the new algorithm saves the encoding time without loss of image quality.

关 键 词：信息处理技术 H.264/AVC 帧间预测 率失真优化 帧内预测 图像分割 运动估计 

分 类 号：TN919.81[电子电信—通信与信息系统]