Patent ID: 8180117

Claim:
An individual identification data register comprising: a camera that captures an image of a face of a person; a storage device; and an arithmetic processing device, wherein said storage device stores projection matrix data showing a projection matrix generated from first image data obtained by capturing images of faces of a plurality of persons, and individual identification data showing a component value that indicates a facial feature of a person registered, said arithmetic processing unit executes the processing of (A) calculating a component value showing a facial feature of the person based on second image data showing the face of the person obtained by said camera and on said projection matrix data stored in said storage device, (B) determining whether or not individual identification data showing a component value generating an error smaller than a predetermined threshold value when compared with the component value calculated in said processing (A) is stored in said storage device, and (C) storing component value data showing the component value calculated in said processing (A), as individual identification data, into said storage device, when determining in said processing (B) that the individual identification data is not stored in said storage device, and said processing (B) is the processing of (B-1) determining a minimum value among respective errors, the respective errors being calculated by comparing the component value calculated in said processing (A) with said respective individual identification data stored in said storage device, (B-2) determining whether or not said minimum value determined in said processing (B-1) is equal to or more than the predetermined threshold value, and (B-3) determining that individual identification data showing a component value generating an error smaller than the predetermined threshold value when compared with the component value calculated in said processing (A) is not stored in said storage device, when determining in said processing (B-2) that said minimum value is equal to or more than the predetermined threshold value.