Biometric authentication device and method using veins patterns

摘要

An authentication device includes: an image acquisition unit configured to acquire a plurality of images with regard to a certain living body; an extraction unit configured to extract first biometric information from each of the plurality of images; an alignment unit configured to perform alignment between the plurality of images, based on the first biometric information; a calculation unit configured to calculate a coefficient based on feature of the certain living body, the feature being identified by a result of the alignment; and a normalization unit configured to generate a normalized image by normalizing at least one image from among the plurality of images based on the coefficient.