Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2002.07a
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- Pages.152-155
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- 2002
Digital Watermark Based Error Detection for MPEG-4 Bitstream Error
- Hiroyuki Okada (Digital Information Appliances Development Center, Sharp Corporation, Department of Information Systems Engineering, Osaka University) ;
- Shiitev, Altan-Erdene (Department of Information Systems Engineering, Osaka University) ;
- Song, Hak-Sop (Department of Information Systems Engineering, Osaka University) ;
- Gen Fujita (Department of Information Systems Engineering, Osaka University) ;
- Takao Onoye (Department of Information Systems Engineering, Osaka University) ;
- Isao Shirakawa (Department of Information Systems Engineering, Osaka University)
- Published : 2002.07.01
Abstract
In this paper, a new approach is proposed for the error detection dedicated to MPEG-4 video coding by using the digital watermarking. In the process of encoding, the proposed scheme abstracts the macroblock features of headers, motion vectors, and Discrete Cosine Transform (DCT) coefficients, which are embedded in the quantized DCT coefficients as the digital watermarks. The decoder performs the accurate error detection through the watermark extraction. Simulation results demonstrate that the error detection ability of the proposed approach can be significantly enhanced, and that digital watermark embedding incurs little degradation to the picture quality.
Keywords