Abstract
Some requirements for MPEG-2 video watermarking, such as invisibility, robustness, unchanged bitstream size and real time processing, are desirable. We firstly apply a DC-based embedding strategy to MPEG-2 compressed domain and embed the watermark by modifying the DC coefficients. The strategy has three advantages over the AC-based one. Then a MPEG-2 bitstream video watermarking scheme is proposed. The watermark is embedded in DC coefficients in I frames. Because these DC coefficients are differentially coded, error caused by watermark embedding will be propagated. In order to decrease the distortion to video quality caused by error propagation, we develop a compensation algorithm worked in bit-stream, which improves the quality of the watermarked video effectively. We also give a simple control scheme to ensure that the MPEG-2 bitstream keeps its original size after watermarking. The experimental results show that the watermark is robust while guaranteeing the invisibility and real-time processing.
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© 2006 Springer-Verlag Berlin Heidelberg
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Liu, H., Shao, F., Huang, J. (2006). A MPEG-2 Video Watermarking Algorithm with Compensation in Bit Stream. In: Safavi-Naini, R., Yung, M. (eds) Digital Rights Management. Technologies, Issues, Challenges and Systems. DRMTICS 2005. Lecture Notes in Computer Science, vol 3919. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11787952_10
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DOI: https://doi.org/10.1007/11787952_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-35998-2
Online ISBN: 978-3-540-35999-9
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