Patent Document ID: 8509497
Application ID: 12845413
Patent Status: 1

Claim One:
1. A person recognition method for comparing a photographic image showing a face of a person to be recognized with face images of a plurality of registrants registered in a database, the person recognition method comprising the steps of: determining a date of taking a photograph of a person to be recognized; subtracting a date of taking a registrant's face image from the date of taking the photographic image of the person to be recognized, and calculating a number of elapsed years from the date of taking the registrant's face image; selecting one of a plurality of image comparison methods for comparing the photographic image with the registrant's face image in accordance with the number of elapsed years; comparing the photographic image with the registrant's face image by the selected image comparison method, and calculating a degree of resemblance between the photographic image and the registrant's face image using the selected image comparison method; and displaying personal data of the one or more registrants, the personal data with the higher degree of resemblance being given a high priority to be displayed.