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Hand-based biometric analysis

  • US 9,042,606 B2
  • Filed: 06/18/2007
  • Issued: 05/26/2015
  • Est. Priority Date: 06/16/2006
  • Status: Expired due to Fees
First Claim
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1. A method of determining identity using a computing system that implements a biometric analysis tool, the method comprising:

  • with the computing system that implements the biometric analysis tool, performing biometric analysis on an image of a hand to produce plural feature parameters without requiring a particular orientation of the hand during image capture or for the biometric analysis, wherein the biometric analysis includes;

    determining a silhouette representation from the image of the hand;

    segmenting the silhouette representation into plural segment images representing palm and plural fingers of the hand without using landmark points during the segmenting, the plural fingers including a thumb, wherein the palm is segmented from the thumb;

    determining the plural feature parameters from the plural segment images, respectively, each of the plural feature parameters indicating geometry of a different part among the palm and the plural fingers of the hand; and

    making an identity decision based at least in part on the plural feature parameters and stored descriptors representing one or more previously-analyzed hand images, wherein a different weight is associated with each of the plural feature parameters, respectively.

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