Biometric information processing apparatus, biometric information processing method

摘要

A biometric information processing apparatus includes a biometric sensor configured to acquire biometric information of a first instance, a second instance and a third instance; an authentication feature extraction unit configured to extract an authentication feature used for matching from the biometric information of each of the second instance and the third instance; a normalization unit configured to normalize a relative positions of authentication features of the second instance and the third instance by using the biometric information of the first instance; and a relative feature extraction unit configured to extract a relative feature indicating a relative positional relationship between the authentication features of the second instance and the third instance normalized by the normalization unit.