LOGIN INDIVIDUAL AUTHENTICATION METHOD, LOGIN INDIVIDUAL AUTHENTICATION DEVICE AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a login individual authentication method, an authentication device and a recording medium, allowing authentication without requiring a user's authentication information input action in login to a system, capable of certainly managing security, and stably collating and authenticating an individual from a user's face image.;SOLUTION: A photographing means 20 photographs the user's face image, and a two-dimensional face image generation means 12 extracts characteristic points of a face to generate a two-dimensional face image. A measurement means 14 sets a base line and a calculation reference distance with respect to longitudinal and lateral axial lines of the face and calculates a ratio of distances to the respective characteristic points from the base line and the calculation reference distance to generate a plurality of face characteristic data. A collation means 16 collates the face characteristic data with previously stored face characteristic data in a face characteristic database, and an authentication means 18 authenticates permission or rejection of the login to the user.;COPYRIGHT: (C)2003,JPO