Living body guidance control method for a biometric authentication device, and biometric authentication device

摘要

A biometric authentication device identifies characteristics of the body from captured images of the body and performs individual authentication. The device guides a user, at the time of verification, to the image capture state at the time of registration of biometric characteristic data. At the time of registration of biometric characteristic data, body image capture state data is extracted from an image captured by an image capture unit (1) and is registered in a storage unit (4), and at the time of verification the registered image capture state data is read from the storage unit (4) and is compared with image capture state data extracted at the time of verification, and guidance of the body is provided. Alternatively, an outline of the body at the time of registration, taken from image capture state data at the time of registration, is displayed. The present invention prevents verification failures occurring even when the person is the individual in question, and the time required for verification can be shortened, contributing to improve the reliability of biometric authentication.