An information processing apparatus, biometric authentication method and recording medium having a biometric authentication protocol recorded thereon

摘要

An information processing apparatus includes a memory and a processor configured to store registered feature information of a first biometric image acquired by a registrant, dividing a second biometric image acquired by an authentication subject into regions, calculating a degree of clarity indicating a clearness of an image of each of the regions, setting, from the regions, at least a portion of a first region that is a region of clarity greater than a first threshold, as a mask region, in accordance with the degree of clarity of each of the regions; Generating a corrected biometric image by correcting an image of a second region other than the mask region from the regions; Extracting feature information from the corrected biometric image and comparing the registered feature information and the extracted feature information to perform authentication for the authentication subject.