System and method for iris identification using stereoscopic face recognition

• US 20050084137A1
• Filed: 01/15/2003
• Published: 04/21/2005
• Est. Priority Date: 01/16/2002
• Status: Abandoned Application

• Current Assignee: Iritech Incorporated
• Original Assignee: Iritech Incorporated
• Inventors: Kim, Dae-Hoon, Choi, Byung-Ho, Paik, Seung-Min
• Application Number:
  US10/501,569
• Publication Number:
  US 20050084137A1
• Time in Patent Office: Days
• US Class Current: 382/115
• CPC Class Codes: G06V 40/168 Feature extraction; Face representation
• CPC Class Codes: G06V 40/18 Eye characteristics, e.g. of the iris

Abstract

Disclosed herein is a system and method for iris recognition including stereoscopic face recognition, which can recognize irises including stereoscopic face recognition system in order to recognize an authenticatee. The system includes two or more face recognition cameras for photographing two or more face images of an authenticatee; a recognition system for receiving the face images photographed by the face recognition cameras from the face recognition cameras and creating stereoscopic face information on the basis of the face images; and one or more iris recognition cameras controlled by the recognition system to photograph focused irises of the authenticatee using the created stereoscopic face information.

Claims

1. A system for iris recognition using stereoscopic face recognition, comprising:

two or more face recognition cameras for photographing two or more face images of an authenticatee;

a recognition system for receiving the face images photographed by the face recognition cameras from the face recognition cameras and creating stereoscopic face information on the basis of the face images; and

one or more iris recognition cameras controlled by the recognition system to photograph irises of the authenticatee using the created stereoscopic face information.

2. The system for iris recognition using stereoscopic face recognition according to claim 1, wherein the created stereoscopic face information includes information on distance between pupils of the authenticatee and the face recognition cameras.

3. The system for iris recognition using stereoscopic face recognition according to claim 2, further comprising an iris recognition camera driving system for moving the iris recognition cameras on the basis of the distance information to automatically focus the iris recognition cameras on the irises of the authenticatee, the iris recognition cameras being mounted on the driving system.

4. The system for iris recognition using stereoscopic face recognition according to claim 2, wherein the iris recognition cameras have lenses with 5 cm or more focal depth.

5. The system for iris recognition using stereoscopic face recognition according to claim 1, further comprising:

a body provided with a protective glass which is opaque for visible light and transparent to infrared light in a front thereof, and the iris recognition cameras therein, a region with which the irises of the authenticatee are aligned being represented on the protective glass; and

an infrared illumination device disposed around the iris recognition cameras and installed in the body together with the iris recognition cameras.

6. A method for iris recognition using stereoscopic face recognition, comprising the steps of:

photographing two or more face images of an authenticatee using two or more face recognition cameras to stereoscopically photograph a face of the authenticatee;

calculating a location of the face of the authenticatee and a distance to pupils of the authenticatee using a recognition software using the photographed face images; and

photographing irises of the authenticatee using the calculated location of the face and the distance to the pupils.

7. The method for iris recognition using stereoscopic face recognition according to claim 6, wherein the step of photographing irises is performed by photographing irises after iris recognition cameras are moved on a basis of the calculated distance of the pupils.

8. The method for iris recognition using stereoscopic face recognition according to claim 6, wherein the step of photographing irises comprises the steps of:

transmitting a message to the authenticatee so that the authenticatee can move to a certain location on a basis of the calculated distance to the pupils, and position of the face; and

photographing irises if it is determined that the authenticatee has moved to the predetermined location.

9. The method for iris recognition using stereoscopic face recognition according to claim 6, further comprising the steps of:

extracting boundaries of the irises and the pupils from the photographed irises of the authenticatee; and

determining whether the authenticatee has taken a narcotic drug through a parameter analysis process for narcotic detection.

13. The method for iris recognition using stereoscopic face recognition according to claim 6, wherein the step of:

calculating the tilted angle of iris images compared to the registered iris images;

and normalizing the rotation of the captured iris images to reduce the error of iris identification.

10. A method for individual identification using stereoscopic face recognition, comprising the steps of:

photographing two or more face images of an authenticatee using two or more face recognition cameras to stereoscopically photograph a face of the authenticatee;

extracting parts of a face of the authenticatee by a recognition software using the photographed face images; and

determining whether stereoscopic face information created by the extracted parts of the face is the same as specific face information stored in a database.

11. The method for individual identification using stereoscopic face recognition according to claim 10, wherein the specific face information stored in the database is created by the steps of photographing face images and extracting parts of a face of the authenticatee.

12. The method for individual identification using stereoscopic face recognition according to claim 10, wherein the specific face information stored in the database is generated by digitizing a picture of the authenticatee.