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Method for preventing false acceptance of latent fingerprint images

  • US 20030202687A1
  • Filed: 04/29/2002
  • Published: 10/30/2003
  • Est. Priority Date: 04/29/2002
  • Status: Active Grant
First Claim
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1. A method for preventing false acceptance of latent biometric information provided to a biometric information input device having a platen, comprising the steps of:

  • a) sensing first biometric information provided to the biometric information input device from a first portion of a biometric information source;

    b) sensing second biometric information provided to the biometric information input device from a second portion of the biometric information source, each of the first and second portions including an overlapping same portion of the biometric information source, the first and second biometric information received at a different time one from the other;

    c) analyzing at least one of the first and second biometric information to identify a feature within the overlapping same portion for determining a global reference frame for use in characterizing the at least one of the first and second biometric information;

    d) determining first data relating to the feature within the first biometric information and determining second data relating to the same feature within the second biometric information;

    e) comparing the first and second data to detect a difference between the first and second biometric information; and

    , f) determining the biometric information source as a live biometric information source in dependence upon the detected difference.

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