An Improved Watermarking Extraction Algorithm

  • Ning Chen
  • Jie Zhu

Abstract

Echo hiding is one of the prevailing techniques in audio watermarking due to its good perceptual quality. However, the detection ratio of this method is relatively low and its robustness against many common signal-processing operations is not satisfactory. In this paper, an improved watermarking extraction algorithm, which is based on auto-power-cepstrum, is proposed. Computer simulation results prove that the new method achieves higher detection ratio when compared with conventional auto-complex-cepstrum based algorithm and its robustness against various signal processing manipulations, such as Mp3 compression, re-sampling, cropping, re-quantization, filtering, amplitude amplifying, noise addition and time delay, is great.

Keywords

Recombination Autocorrelation Acoustics Aliasing 

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Copyright information

© Springer 2007

Authors and Affiliations

  • Ning Chen
    • 1
  • Jie Zhu
    • 1
  1. 1.School of Electronic, Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghaiChina, 200030

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