AUTHENTICATION DEVICE AND CONTROL METHOD THEREFOR, ELECTRONIC EQUIPMENT PROVIDED WITH AUTHENTICATION DEVICE, CONTROL PROGRAM FOR AUTHENTICATION DEVICE, AND RECORDING MEDIUM WITH THE PROGRAM THEREON

摘要

PPROBLEM TO BE SOLVED: To effectively prevent spoofing in authentication, and to maintain convenience for a user. PSOLUTION: A face image collation part 32 calculates a matching degree by collating a face image of a person to be authenticated acquired by a face image acquisition part 31 via a photographing part 13, with face feature information included in a face feature DB 40 of a storage part 21, in a face authentication part 30 of a cellular phone. A threshold value determination part 35 retrieves an evaluation DB 41 to determine a threshold value, based on its own positional information acquired by a positional information acquisition part 33 via a reception part 14 for a GPS. An authentication part 36 compares the matching degree calculated by the face image collation part 32 with the threshold value determined by the threshold value determination part 35, to determine the success or failure of face authentication. PCOPYRIGHT: (C)2007,JPO&INPIT