基于数据隐藏的H.264视频传输抗误码方法研究  

An Error Recovery Approach for H.264 Video Transmission Based on Data Hiding

作　　者：陈海波[1] 董育宁[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003

出　　处：《南京邮电大学学报（自然科学版）》2012年第2期33-38,共6页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家自然科学基金(60972038);教育部博士点科研基金(20103223110001)资助项目

摘　　要：针对如何改善H.264无线视频传输抗误码性能,提出了一种基于数据隐藏的H.264视频传输I帧误码恢复方法。该方法在编码端自适应地提取I帧宏块的重要数据,并将提取的重要数据隐藏到下一帧RTP报文的扩展头部,然后在解码端提取重要数据并采用空时自适应算法对I帧进行误码恢复。实验结果表明,该方法相比于同类方法显著提高了I帧的误码恢复效果。In order to improve the quality of H.264 video transmission,this paper proposed an I frame error recovery approach for H.264 video transmission based on data hiding.At the encoder,for an H.264 intra-coded I frame,the important data for each macroblock（MB） are extracted adaptively and hidden into the RTP header of the next frame by the proposed data hiding mehod.At the decoder,if the important data for a corrupted MB can be correctly extracted,the extracted important data will be used for error recovery;Otherwise,a simple algorithm is used to recover the corrupted MB.Simulation results show that the performance of the proposed approach is better than existing approaches.

关 键 词：误码恢复 数据隐藏 H.264 视频传输 

分 类 号：TN919.33[电子电信—通信与信息系统]