This scheme firstly determined the operating mode of coded video stream in nal layer according to the current channel state before they were packed . the coded video stream operated under ssm in error - free channel so as to reduce the packing tradeoff and increase the coding efficiency . while in error - prone channel , they operated under dpm combined with improved unequal error protection ( uep ) scheme based on human eyes characteristic in order to elevate their robustness to channel error 该方案中编码视频信息在进行打包封装前,首先根据当前信道状态信息自适应地确定其在nal层中的工作模式,在无丢包信道中采用单数据片模式以降低编码视频流的打包开销,提高编码效率;而在丢包信道中采用数据分区模式以提高编码视频流对信道误码的鲁棒性能,同时基于人眼视觉特性,提出了一种改进的uep策略。
编码: encoded; code; coded; encryp ...视频: video frequency; vision freq ...信息: information; message; news编码视频比特流: coded video bit stream视频信息: video information视频信息板: video information panel视频信息流: video stream视频信号编码: video signal coding彩色视频信息: color video information; colour video information视频信息系统: videotext; vis video information system视频信号编码器: video coder高级视频信息显示: avid advanced visual information display交互视频信息系统: ivis interactive video information system视频信息高速公路: vih视频信息交换窗口: view video information exchange window视频信息提供商: vi video information provider; vivideo information provider视频信息提供者: vivideo information provider彩色视频信号的数字编码: digital coading of color video signals数码视频广播: digital video broadcasting (dvb)多媒体音频视频信息交换: mavix multimedia audio video information exchange数码视频录像机: dvr数码视频效应装置: dve unitsq视频信号: q video signal视频信道: video chain; video channel; video frequency channel视频信号: vision signal; video signal◇视频信号检波 video rectification; video detection; 视频信号接收 video reception; 视频信号增益 video gain; 视频信号振幅 amplitude of video signal; 视频信号周期 video interval