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Personal identification device and method

  • US 7,266,223 B2
  • Filed: 08/31/2005
  • Issued: 09/04/2007
  • Est. Priority Date: 09/06/2000
  • Status: Expired due to Term
First Claim
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1. A blood vessel pattern extraction apparatus, comprising:

  • a light source;

    a camera which captures light transmitted through a set finger to generate an image; and

    an image processing unit which extracts a blood vessel pattern from the image captured by the camera for personal identification,wherein the image processing unit extracts a finger outline, determines an approximated straight line of the finger outline, and rotationally corrects the image so that the approximated straight line of the finger outline is horizontal to an edge of the image.

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