Error Detection and Concealment of Transmission Error Using Watermark 


Vol. 29,  No. 2, pp. 262-271, Feb.  2004


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  Abstract

There are channel errors when video data are transmitted between encoder and decoder. These channel errors would make decoded image incorrect, so it is very important to detect and recover channel errors. This paper proposes a method of error detection and recovery by hiding specific information into video bitstream using fragile watermark and checking it later. The proposed method requires no additional bits into compressed bitstream since it embeds a user-specific data pattern in the least significant bits of LEVELs in VLC codewords. The decoder and extract the information to check whether the received bitstream bas an error or not. We also propose to use this method to embed essential data such as motion vectors that can be used for error recovery. The proposed method can detect corrupted MBs that usually escape the conventional syntax-based error detection scheme. This proposed method is quite simple and of low complexity. So the method can be applied to multimedia communication system in low bitrate wireless channel.

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  Cite this article

[IEEE Style]

W. Park and B. Jeon, "Error Detection and Concealment of Transmission Error Using Watermark," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 2, pp. 262-271, 2004. DOI: .

[ACM Style]

Woonki Park and Byeungwoo Jeon. 2004. Error Detection and Concealment of Transmission Error Using Watermark. The Journal of Korean Institute of Communications and Information Sciences, 29, 2, (2004), 262-271. DOI: .

[KICS Style]

Woonki Park and Byeungwoo Jeon, "Error Detection and Concealment of Transmission Error Using Watermark," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 2, pp. 262-271, 2. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880