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A Blind Source Separation Based Multi-bit Digital Audio Watermarking Scheme

  • Xiaohong Ma
  • Xiaoyan Ding
  • Chong Wang
  • Fuliang Yin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3973)

Abstract

A multi-bit digital audio watermarking scheme based on blind source separation (BSS) is proposed in this paper. The host audio signal is first permuted and divided into frames equally, and the watermark embedding and extraction procedure are executed frame by frame. In embedding procedure, the embedding watermark signal is generated firstly, and then mixed together with the permuted host audio signal through a BSS model. After that, the obtained mixtures are combined and inverse permuted to form the watermarked audio signal. In extraction procedure, watermarked audio signal is permuted and split into two signals, and then BSS technique is applied to obtain the separated embedding watermark signal, by observing the correlation values between it and the embedding watermark signal, the existence of watermark can be determined. With the secret keys, we can recover the watermark image further more. Experimental results show the effectiveness of the proposed method.

Keywords

Audio Signal Watermark Scheme Blind Source Separation Chaotic Sequence Watermark Embedding 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Xiaohong Ma
    • 1
  • Xiaoyan Ding
    • 1
  • Chong Wang
    • 1
  • Fuliang Yin
    • 1
  1. 1.School of Electronic and Information EngineeringDalian University of TechnologyDalianChina

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