Patent ID: 9070025
Filing Date: 2015-06-30
Classification: G06K

Abstract:
1. A biometric information processing apparatus, comprising: a biometric sensor configured to acquire biometric information of a first instance, a second instance and a third instance; a processor configured to execute a process, the process comprising: extracting an authentication feature used for matching from the biometric information of each of the second instance and the third instance; normalizing relative positions of authentication features of the second instance and the third instance by using the biometric information of the first instance; extracting a relative feature indicating a relative positional relationship between the authentication features of the second instance and the third instance after the relative positions of the authentication features of the second instance and the third instance have been normalized; narrowing out a matching candidate from a plurality of users registered in a database by matching relative features of the plurality of users with the extracted relative feature; and authenticating a user according to a result of matching the authentication feature and the relative feature for the matching candidate narrowed in the narrowing, among the authentication features and the relative features of the plurality of users registered in the database, with the authentication feature extracted in the extracting of the authentication feature and the relative feature extracted in the extracting of the relative feature.