Registration device and registration method for biometric authentication, authentication device and authentication method for biometric authentication

摘要

A registering device, a registering method, an authentication device and an authentication method that can perform authentication with high speed while reducing an increase in the storage capacity are proposed. From a living-body image for authentication, a feature area included in the living-body image is detected. Further, a part having the same shape and the same size as those of the feature area is cut out from each of a plurality of living-body information items that are stored in a storage means based on position information associated with the living-body information item. A candidate for verification against the living-body image for authentication is selected from the plurality of living-body information items based on the resemblance between each of these cut-out parts and the feature area of the living-body image for authentication, and it is determined whether or not a registered person based on the result of verification of a living body indicated by a selected living-body information item against a living body shown in the living-body image for authentication.