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Biometric authentication device, biometric authentication method, and computer readable, non-transitory medium

  • US 9,336,426 B2
  • Filed: 09/11/2014
  • Issued: 05/10/2016
  • Est. Priority Date: 03/28/2012
  • Status: Active Grant
First Claim
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1. A biometric authentication device comprising:

  • a memory configured to store an enrollment feature data;

    a biometric sensor that obtains a biometric image of a user; and

    a circuitry configured to;

    obtain a surface reflection degree of the biometric image;

    extract a comparison-use feature data from the biometric image; and

    perform a comparing based on a similarity between the comparison-use feature data and the enrollment feature data, the similarity being obtained by using a correction coefficient and the surface reflection degree related to a region of the biometric image, the correction coefficient being a weighting coefficient of the similarity.

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