Iris recognition method and system using the same

• US 20030123711A1
• Filed: 12/27/2002
• Published: 07/03/2003
• Est. Priority Date: 12/28/2001
• Status: Active Grant

• Current Assignee: Iris Id
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chae, Jang Jin, Kim, Ho
• Granted Patent: US 7,146,027 B2
• Time in Patent Office: Days
• US Class Current: 382/117
• CPC Class Codes: G06V 40/18 Eye characteristics, e.g. of the iris

Abstract

Disclosed is a method to improve iris recognition success ratio and speed by registering the iris code on location of illuminator. In the present invention, iris codes for a single iris generated as many as the number of a plurality of illuminators are registered on an iris database every area corresponding to the location of the illuminator. The iris codes generated one by one whenever the plurality of illuminators are turned on one by one for recognition are searched on the corresponding areas of the iris database to determine the recognition.

Claims

1. An iris recognition method comprising the steps of:

(a) capturing an iris image from a user'"'"'s iris while one of a plurality of illuminators is turned on, the plurality of illuminators being arranged at different locations;

(b) registering an iris code generated from the captured iris image on a location area of the used one illuminator; and

(c) repeating the step (a) and the step (b) until the iris codes generated as many as the number of the illuminators are all registered on corresponding location areas of the used illuminators.

2. The method according to claim 1, wherein whenever the plurality of illuminators are turned, the location of the corresponding illuminator is grasped.

3. The method according to claim 1, wherein the iris code is IrisCode.

4. An iris recognition method comprising the steps of:

(a) capturing an iris image from a user'"'"'s iris while one of a plurality of illuminators is turned on, the plurality of illuminators being arranged at different locations;

(b) determining whether or not an iris code generated from the iris image exists on an illuminator location area of an iris database; and

(c) reporting a recognition result to the user if the iris code exists on the illuminator location area.

5. The method according to claim 4, further comprising the step of:

(d) repeating the step (a) and the step (b) with changing the locations of the illuminators if the iris code does not exist on the illuminator location area.

6. The method according to claim 4, wherein the iris database comprises the iris codes registered as many as the number of the plurality of illuminators on the corresponding illuminator location areas.

7. The method according to claim 4, wherein the location of the corresponding illuminator is grasped whenever any one of the plurality of illuminators is turned on.

8. The method according to claim 4, wherein the iris code is IrisCode.

9. An iris recognition system comprising:

means for turning on a plurality of illuminators sequentially, the plurality of illuminators being arranged at different locations from each other;

means for capturing a plurality of iris images from a user'"'"'s iris whenever any one of the plurality of illuminators is turned on sequentially; and

means for respectively registering a plurality of iris codes generated from the plurality of iris images on areas corresponding to locations of the plurality of illuminators.

10. An iris recognition system comprising:

means for turning on a plurality of illuminators sequentially, the plurality of illuminators being arranged at different locations from each other;

means for capturing a plurality of iris images from a user'"'"'s iris whenever any one of the plurality of illuminators is turned on sequentially;

means for determining whether a plurality of iris codes generated from the plurality of iris images exists on corresponding illuminator location areas of an iris database; and

means for reporting recognition result to the user if any one of the plurality of iris codes exists on the corresponding illuminator location areas of the iris database.