A Robust Watermarking for MPEG-2

  • Huang Li
  • Jian Li
  • Hongmei Liu
Conference paper

DOI: 10.1007/978-3-642-03688-0_9

Part of the Lecture Notes in Computer Science book series (LNCS, volume 5703)
Cite this paper as:
Li H., Li J., Liu H. (2009) A Robust Watermarking for MPEG-2. In: Ho A.T.S., Shi Y.Q., Kim H.J., Barni M. (eds) Digital Watermarking. IWDW 2009. Lecture Notes in Computer Science, vol 5703. Springer, Berlin, Heidelberg

Abstract

Motion information is special to video. It provides enough space for watermark embedding. However, the watermark embedded in motion information is usually not robust. In this paper, a robust watermarking algorithm which embeds watermark in motion vectors of P frames is proposed. The reason why the watermark embedded in motion vector is not robust to recompression is that the watermarked motion vector will be changed when the video is recompressed. In order to improve the watermark robustness to recompression, we present to modify the pixel of the current block while embedding watermark bit in its motion vector. In order to minimize the perceptual degradation of video quality, we adopt our previously proposed geometrical method. The experimental results demonstrate the strong robustness of the scheme against common signal processing operations.

Keywords

Video Watermark MPEG-2 Motion Vector 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Huang Li
    • 1
  • Jian Li
    • 1
  • Hongmei Liu
    • 1
  1. 1.School of Information Science and TechnologySun Yat-sen UniversityGuangzhouChina

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