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Video Error Detection And Concealment Using Fragile And Robust Watermarks

When video transmits over error-prone channels, the fragile property of compressed stream makes it sensitive to bit error. Often even a slight error can make video unable to correctly decode. Therefore, there is a need for a good error control method to solve the problem. This paper presents a novel error detection and concealment strategy along with watermark technique. The proposed watermark-based scheme utilizes two kinds of watermark technique, a fragile watermark is used to detect and localize errors, and a robust watermark is used to reconstruct error areas when errors exist. Experimental results show the proposed watermark-based scheme has good error detection capabilities and complete error recovery information, therefore significant improves video quality after errors happened, especially in the case of higher loss probabilities.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0712106-194302
Date12 July 2006
CreatorsHuang, Yan-Huei
ContributorsYun-Lung Chang, Shun-Ren Jheng, John-Y Chiang, Chung-nan Lee
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0712106-194302
Rightsoff_campus_withheld, Copyright information available at source archive

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