一种视频数据错误的自适应处理方法  

A Self-adaptive Error Processing Strategy in Video Transmission

作　　者：路锦正[1] 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010

出　　处：《西南科技大学学报》2006年第4期76-79,共4页Journal of Southwest University of Science and Technology

摘　　要：视频通信中信号的误码、数据的丢失可引起视频图像质量下降、甚至无法解码,必须进行数据恢复、错误掩盖。在分析各种数据错误处理方法的基础上,结合数据传输中各参数对数据恢复的影响,提出了一种自适应错误处理方法:根据视频图像的运动情况及其编码类型,自适应、动态地选择某种错误隐藏技术或它们的加权组合,从而达到最好的错误隐藏效果。通过PSNR图分析和图像主观质量表明该方法行之有效。In the channel of wireless mobile network,error code or noise of signal and loss of data are inevitable,and this can bring the descent of quality of image,furthermore,bit streams can not be decoded correctly.It is necessary to make Error Resilience or Error Concealment.The research is based on various error data processing technologies,and the influence of the data recovery by parameters in data transmission is also considered.A Self-adaptive Error Processing Strategy is put forward,which can choose some Error Concealment means self-adaptively and dynamically according to video motion and coding pattern to achieve the best error concealing effect.The experiment proves the new strategy is very effective according to the PSNR and subjective-quality of image.

关 键 词：视频数据错误 视频通信 视频容错 错误掩盖 

分 类 号：TN919.8[电子电信—通信与信息系统]