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Biometric authentication apparatus, biometric authentication method, and program

  • US 20110188710A1
  • Filed: 01/21/2011
  • Published: 08/04/2011
  • Est. Priority Date: 01/29/2010
  • Status: Active Grant
First Claim
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1. A biometric authentication apparatus comprising:

  • a vein image extraction unit for emitting a light having a predetermined wavelength to a finger portion and extracting a vein image showing positions of veins from an image including veins in the obtained finger portion;

    a vein image dividing unit for dividing the vein image extracted by the vein image extraction unit into a plurality of partial regions;

    a vein pixel counting unit for counting the number of pixels corresponding to the veins in each of the partial regions divided by the vein image dividing unit;

    a vector generation unit for arranging, in a predetermined order, count results of the respective partial regions provided by the vein pixel counting unit, and generating a vein distribution vector, which is a numerical sequence representing a degree of distribution of the veins in the vein image; and

    an authentication unit for authenticating the vein distribution vector generated by the vector generation unit, based on a registered vein distribution vector, which is a vein distribution vector registered in advance.

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