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Statistical quality assessment of fingerprints

  • US 20050069179A1
  • Filed: 08/06/2004
  • Published: 03/31/2005
  • Est. Priority Date: 08/07/2003
  • Status: Active Grant
First Claim
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1. A method to analyze a fingerprint image, the fingerprint image including ridges and valleys, said method comprising:

  • receiving a fingerprint image corresponding to a human fingerprint;

    determining image distortion associated with the fingerprint image;

    adjusting the fingerprint image to compensate for the image distortion;

    segmenting the fingerprint image into at least a plurality of subsets; and

    for each of the subsets;

    determining a measure associated with fingerprint ridges and fingerprint valleys in the subset; and

    based on the measure assigning the subset to at least one of a plurality of categories.

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