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Quantization-based data embedding in mapped data

  • US 7,376,242 B2
  • Filed: 12/19/2003
  • Issued: 05/20/2008
  • Est. Priority Date: 03/22/2001
  • Status: Expired due to Term
First Claim
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1. A method for quantization based data embedding into a host signal comprising:

  • mapping the host signal from a first domain into a mapped signal in a second domain that is robust to a class of amplitude modifications that are order preserving; and

    performing quantization based embedding of auxiliary data into the host signal using quantization bins derived from the second domain that are robust to the amplitude modifications.

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