Photographed body authenticating device, face authenticating device, portable telephone, photographed body authenticating unit, photographed body authenticating method and photographed body authenticating program

• US 7,561,791 B2
• Filed: 03/13/2006
• Issued: 07/14/2009
• Est. Priority Date: 03/15/2005
• Status: Active Grant

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Inoue, Tomohiro, Kakiuchi, Takashi
• Primary Examiner(s): FULLER, RODNEY EVAN
• Application Number:
  US11/374,371
• Publication Number:
  US 20060210261A1
• Time in Patent Office: 1,219 Days
• Field of Search: 396/123, 396/155, 396/157, 396/166, 348/156, 348/161, 348/164, 348/239, 382/118
• US Class Current: 396/155
• CPC Class Codes: G06V 40/166 using acquisition arrangements
• CPC Class Codes: G06V 40/40 Spoof detection, e.g. liveness detection

Abstract

A photographed body authenticating unit includes a control unit for executing solid judgment processing for judging whether a photographed body is solid or not based on an entire brightness changing amount of an entirety of a photographed body and a partial brightness changing amount of a part of the photographed body. The entire and partial brightness changing amounts are acquired by a difference between photographed image data obtained in different illuminating states. The control unit also executes photographed body collation processing for collating whether the photographed body is already registered with respect to at least one photographing image or not and authentication processing for authenticating that the photographed body is true when the solid judgment processing determines that the photographed body is solid and the collation processing determines that the photographed body is already registered.

Claims

1. 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.

2. The photographed body authenticating device according to claim 1, wherein said plural times photographing processing is constructed so as to be continuously executed at a time interval determined in advance.

3. The photographed body authenticating device according to claim 1, wherein the photographed body is a face.

4. A portable telephone 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 the 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.

5. A photographed body authenticating unit comprising control means for executing:

solid judgment processing for judging whether a 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 collation processing that it is the photographed body already registered.

6. A photographed body authenticating method for authenticating a photographed body based on a photographic image provided by photographing the photographed body by photographing means;

wherein illuminating states using illuminating means are differently set, and a plurality of photographings are executed by photographing means;

whether the photographed body is solid or not is judged 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 the partial brightness changing amounts are acquired by a difference between photographed image data obtained in different illuminating states;

it is collated by photographed body collation processing whether it is the photographed body already registered with respect to at least one photographic image or not; and

it is authenticated 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.

7. A computer-readable medium comprising a photographed body authenticating program for executing:

solid judgment processing for judging whether a 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 the 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 photographic 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.