Method and apparatus for identifying an imaging device

  • US 20090154809A1
  • Filed: 05/19/2006
  • Published: 06/18/2009
  • Est. Priority Date: 12/16/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method for determining whether digital images are derived from the same electronic imager, comprising the steps of analyzing the images to determine whether an inferred noise pattern represented therein is consistent with a noise pattern attributable to a common imager, and outputting an indicia of that determined consistency.

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