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Multibit Forensic Watermark with Encrypted Detection Key

  • US 20080310629A1
  • Filed: 11/10/2006
  • Published: 12/18/2008
  • Est. Priority Date: 11/24/2005
  • Status: Abandoned Application
First Claim
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1. Method of embedding auxiliary data in a host signal, the method comprising the steps of:

  • providing a reference watermark (wR),generating an encrypted detection key (hi) associated with the reference watermark,generating a multibit watermark by encoding (1) a multibit payload (wP) into the reference mark,embedding (3) the multibit watermark into the host signal (y).

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