PERSONAL AUTHENTICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a personal authentication device capable of preventing unjust authentication by a forged finger or the like since authentication has to be inhibited for the unjust attempt of utilizing the forged finger or sticking a vein pattern to a living body finger or the like by a malicious user.

SOLUTION: The finger vein images of different wavelengths imaged in a finger vein image input device 1 are inputted to a different wavelength finger vein image input means 3. A different wavelength finger vein image difference detection means 4 detects the difference of the finger vein images of the different wavelengths inputted to the different wavelength finger vein image input means 3. A finger vein image determination means 5 determines whether or not the finger vein image is the finger vein image of a living body by comparing the difference detected in the different wavelength finger vein image difference detection means 4 and finger vein image determination data 6. A personal authentication means 7 is executed when it is determined that the finger vein image is the finger vein image of the living body in the finger vein image determination means 5.

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