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Reducing Watermark Perceptibility and Extending Detection Distortion Tolerances

  • US 20110216936A1
  • Filed: 03/07/2011
  • Published: 09/08/2011
  • Est. Priority Date: 03/05/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving data representing video captured from a display rendering such video;

    searching the data for hidden indicia, the indicia providing information to allow a determination of video capture distance and video capture perspective;

    upon encountering the hidden indicia, using the information to warp the data to compensate for distortion caused by video capture distance or video capture perspective;

    provided the warped data to an electronic processor programmed as a steganographic indicia decoder, said decoder analyzes the warped data to decode steganographic indicia hidden in video captured from the video display.

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