AVS视频标准中的分像素插值算法设计  

Sub-pixel Interpolation Algorithm Design in AVS Video Standard

作　　者：严明[1] 胡国荣[1] 

机构地区：[1]中国传媒大学广芯数字系统集成研究所,北京100024

出　　处：《中国传媒大学学报（自然科学版）》2006年第4期44-48,共5页Journal of Communication University of China：Science and Technology

摘　　要：AVS是我国具备自主知识产权的第二代信源编码标准。在它的视频编码中采用了1/2像素或者1/4像素的运动估计,这样就能提高运动矢量位移的精度,使得帧间剩余误差变小,压缩比就能提高。本文在介绍AVS中的分像素插值原理的基础上,给出了一种在实际应用中可行的算法。AVS standard is the second general digital audio- video source coding standard which is establishing independently in China. Motion estimation and compensation with half - pixel and a quarter of pixel accuracy is supported by AVS video standard, which can improve the accuracy of motion vector. It should be possible to reduce the intra residual error and improve compression performance. This paper introduces the sub-pixel interpolation theory of AVS and gives a feasible algorithm in practical application.

关 键 词：AVS 运动估计 分像素 插值 

分 类 号：TN919.81[电子电信—通信与信息系统]