Blind audio watermark decoding using independent component analysis


Sener S., Gunsel B.

17th International Conference on Pattern Recognition (ICPR), Cambridge, Canada, 23 - 26 August 2004, pp.875-878 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/icpr.2004.1334398
  • City: Cambridge
  • Country: Canada
  • Page Numbers: pp.875-878

Abstract

This paper proposes an audio watermark extraction technique which adopts Independent Component Analysis (ICA) for blind watermark decoding. Unlike the existing work, our method allows to combine data synchronization and watermark decoding into one optimization procedure, thus robust to transmission over different channels. Watermark encoder is designed as a nonlinear data embedding machine which is compatible to MPEG Layer1 Model 1. It is shown that the proposed ICA based watermark decoding scheme allows decoding watermark info accurately even though the watermark to signal ratio is less than -20 dB. The method is robust to stereo-to-mono conversions and performs very well when the channel noise level is high.