Detection and Localization of Transmission Error in MPEG-4 Video*
The growth in mobile communication and Internet usage has lead to increase in demand for robust transmission of compressed video over error prone channels. The quality of decoded video in erroneous environment depends on efficient detection, localization and concealment of errors. In fact, the role of error detection and localization is very important because undetected erroneous macroblocks (MBs) are not concealed and correct MBs may be termed as erroneous. However, traditional error detection method isn’t enough for detection. A novel detection method proposed recently can detect some special errors, but can’t make precise localization. In this paper, an improved error detection and localization technique using syntactic, semantic and statistical information in MPEG-4 is proposed. This scheme can detect most types of transmission error and locate the exact position of the first error. Experimental results show the proposed technique can achieve high error detection ratio, usually more than 90％, and increase the decoding video quality efficiently.
MPEG-4 error detection error localization decoding bit error ratio
Ding Xuewen Yang Zhaoxuan Wu Jiapeng Chen Yang Yu Yuan
School of Electronic Information Engineering,Tianjin University,Tianjin,China,300072;School of Elect School of Electronic Information Engineering,Tianjin University,Tianjin,China,300072
国际会议
武汉
英文
2006-09-01（万方平台首次上网日期，不代表论文的发表时间）