一种高性能高清视频编码分像素插值滤波算法  

High Performance Fractional-pel Interpolation Algorithm for High Definition Video Coding

作　　者：李朝晖[1] 张琦[1] 李冬梅[1] 

机构地区：[1]中国传媒大学数字视频技术研究所,北京100024

出　　处：《电视技术》2008年第5期10-13,共4页Video Engineering

基　　金：国家广播电影电视总局科技基金项目(BG9904);亚洲传媒研究中心科研项目(BD07001)

摘　　要：为提高高清晰度视频编码的效率,基于一维立方卷积滤波原理提出了一种新的分像素插值滤波算法。实验结果表明,该插值算法与H.264/AVC标准中规定的6抽头插值滤波相比,在相同码率下,对高清晰度视频的编码信噪比可以提高0.5 dB;同时,解码端存储复杂度降低了19%,计算复杂度相当。In order to improve high definition video coding efficiency, a new fractional-pel interpolation algorithm based on onedimensional cubic convolution filer is proposed. The experimental results show that compared with the 6-tap interpolation filter in H.264/AVC, the Y-PSNR of the proposed algorithm is improved 0.5 dB when coding the high definition video at the same bitrate. Meanwhile, the storage complexity of decoding end is also reduced 19% with approximately computation complexities.

关 键 词：分像素插值 运动补偿预测 立方卷积 高清晰度视频 H.264/AVC标准 

分 类 号：TP919.81[自动化与计算机技术]