抑制漂移误差的多描述视频编码  

Multiple description video coding with drift reduction

作　　者：陈衎[1] 何选森[1] 

机构地区：[1]湖南大学计算机与通信学院

出　　处：《计算机应用研究》2010年第9期3591-3593,共3页Application Research of Computers

基　　金：湖南省湘潭市科技计划资助项目(ZJ20071008)

摘　　要：针对多描述编码的漂移问题,提出一种基于H.264的多描述编码方案。该方案先对原始图像空间域采样形成两个子图像,然后通过相关联的两路H.264编码器,生成包含相同运动信息的描述,并在解码端采用自适应三次线性插值法恢复补偿信息,达到抑制漂移误差的目的。实验结果表明,该方案能有效提高编码效率,同时获得较好的视频传输质量。This paper proposed a novel scheme for multiple description coding based on H. 264 to solve the drift problem in multiple description coding. This scheme transformed the origin image into two child images by space subsampling first,then produced two descriptions which including the same motion information by passing two correlative H. 264 encoders. And used bicubic interpolation method to recover compensation information to reduce the drift-error. The experiment results show that the proposed scheme can improve coding efficiency effectively and achieve good video transmission quality.

关 键 词：多描述编码 H.264 漂移误差 

分 类 号：TN919.8[电子电信—通信与信息系统]