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.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0712106-194302 |
| Date | 12 July 2006 |
| Creators | Huang, Yan-Huei |
| Contributors | Yun-Lung Chang, Shun-Ren Jheng, John-Y Chiang, Chung-nan Lee |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0712106-194302 |
| Rights | off_campus_withheld, Copyright information available at source archive |
Page generated in 0.0021 seconds