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Watermarking in the time-frequency domain

  • US 20040267533A1
  • Filed: 01/05/2004
  • Published: 12/30/2004
  • Est. Priority Date: 09/14/2000
  • Status: Active Grant
First Claim
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1. A method of watermarking a media signal with a temporal component, the method comprising:

  • dividing the media signal into segments, transforming each segment into a time-frequency spectrogram, computing a time-frequency domain watermark signal based on the time frequency spectrogram, combining the time-frequency domain watermark signal with the media signal to produce a watermarked media signal.

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