Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2004, Vol. 27 ›› Issue (3): 73-77.

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Watermark Constructing Method Based on Host Signal

ZHANG Li-he, DAI Yuan-jun, YANG Yi-xian, HU Zheng-ming   

  1. The Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2003-03-12 Online:2004-03-28

Abstract: According to the linear prediction theory, a host signal-based watermark construction method used with the noise shaping characteristic of linear prediction filter was presented. The theoretical analysis shows that the envelope of watermark signals was similar to that of the host signals, after which it was verified by experiments. So that we get a conclusion: the work we have done on watermark has strong imperceptibility and robustness.

Key words: digital watermark, linear prediction, visual model, auditory model

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