BIOMETRIC AUTHENTICATION APPARATUS AND BIOMETRIC AUTHENTICATION METHOD

摘要

A biometric authentication apparatus 10 according to the present invention can be installed in facilities such as airports for the purpose of improving the reliability of biometric authentication and ensuring high-level security. The biometric authentication apparatus 10 includes a radiating part 11 that radiates light onto a human finger; an image acquisition unit 13 that receives light scattered by the human finger from the light radiated by the radiating part 11, converts the received light into brightness information according to the intensity of the light, and acquires a plurality of images showing the brightness levels; a biological information conversion unit 14 that converts the plurality of images acquired by the image acquisition part 13 into biological information indicating pulse waves in the human finger; and a biometric authentication unit 16 that performs biometric authentication when a pulse wave signal, which is the biological information converted by the biological information conversion unit 14, is larger than a predetermined threshold.