Patent ID: 7561791

Claim:
A photographed body authenticating device comprising photographing means for photographing a photographed body, and authenticating the photographed body based on a photographic image provided by photographing the photographed body by the photographing means; the photographed body authenticating device further comprising: illuminating means for illuminating said photographed body; and control means for controlling the operations of the illuminating means and said photographing means; wherein the control means is constructed so as to execute: plural times photographing processing for differently setting illuminating states using said illuminating means, and executing a plurality of photographings by said photographing means; solid judgment processing for judging whether the photographed body is solid or not based on an entire brightness changing amount of an entirety of the photographed body and a partial brightness changing amount of a part of the photographed body, wherein the entire and partial brightness changing amounts are acquired by a difference between photographed image data obtained in different illuminating states; photographed body collation processing for collating whether it is the photographed body already registered with respect to at least one photographing image or not; and authentication processing for authenticating that the photographed body is true when it is judged by said solid judgment processing that the photographed body is solid, and it is judged by said photographed body collation processing that it is the photographed body already registered.