IRIS BIOMETRIC RECOGNITION MODULE AND ACCESS CONTROL ASSEMBLY

• US 20150098629A1
• Filed: 10/08/2014
• Published: 04/09/2015
• Est. Priority Date: 10/08/2013
• Status: Active Grant

• Current Assignee: Princeton Identity Inc.
• Original Assignee: SRI International, Inc.
• Inventors: Margicin, John M., Kim, Jongjin, Mapen, Barry E., Ackerman, David Alan, Davis, Timothy J., Bergen, James R., Perna, Steven N., Clifton, Mark A., Varma, Bobby S., Piro, Stephen J., Richards, Kevin P., Lanzillotto, Ann-Marie, Wade, David J., Fleisch, Michael P., Bhangley, Jitendra J., Van Sant, Glen J.
• Granted Patent: US 9,836,647 B2
• Time in Patent Office: Days
• US Class Current: 382/117
• CPC Class Codes: E05B 49/006 actuating opto-electronic devices
• CPC Class Codes: E05B 63/00 Locks or fastenings with special structural characteristics
• CPC Class Codes: E05B 65/00 Locks or fastenings for special use
• CPC Class Codes: G06V 40/19 Sensors therefor
• CPC Class Codes: G06V 40/193 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/197 Matching; Classification
• CPC Class Codes: G07C 9/00563 using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
• CPC Class Codes: G07C 9/37 using biometric data, e.g. fingerprints, iris scans or voice recognition
• CPC Class Codes: Y10T 70/625 Operation and control

Abstract

An iris biometric recognition module includes technology for capturing images of an iris of an eye of a person, whether the person is moving or stationary, and whether the person is located near the iris image capture device or at a distance from the iris image capture device. The iris biometric recognition technology can perform an iris matching procedure for, e.g., authentication or identity verification purposes. The iris biometric recognition module can be incorporated into, for example, a door lock assembly and other access controlled devices, mechanisms, and systems.

Claims

1. An iris biometric recognition module comprising:

a base;

an iris imager assembly supported by the base;

a processor supported by the base and in electrical communication with the iris imager assembly; and

a non-transitory storage medium supported by the base and readable by the processor, the non-transitory storage medium having embodied therein a plurality of instructions executable by the processor to cause the iris biometric recognition module to;

with the iris imager assembly, capture an iris image, the iris image depicting at least a portion of an iris of an eye of a human subject detected in a capture zone, wherein the capture zone is to include an area that is spaced from the iris biometric recognition module by a distance in the range of at least about forty-five centimeters;

with the processor, compare data indicative of the captured iris image to reference iris data; and

with the processor, based on the comparison of the data indicative of the captured iris image to the reference iris data, output a signal indicative of an iris match determination.

2. The iris biometric recognition module of claim 1, wherein the capture zone includes an area having a vertical height in the range of about three feet to about seven feet above a ground plane.

3. The iris biometric recognition module of claim 1, wherein the instructions are executable to cause the iris biometric recognition module to capture the iris image while the human subject is in motion, compare data indicative of the iris image captured while the human subject is in motion to reference iris data;

and based on the comparison of the data indicative of the iris image captured while the human subject is in motion to the reference iris data, output a signal indicative of an iris match determination.

4. The iris biometric recognition module of claim 1, wherein the iris imager assembly comprises a narrow field of view imager, and the instructions are executable to configure the narrow field of view imager to focus on the iris of the eye of the human subject.

5. The iris biometric recognition module of claim 1, wherein the iris imager assembly is pivotably coupled to the base, and the instructions are executable to cause the iris imager assembly to pivot relative to the base.

6. The iris biometric recognition module of claim 5, wherein the iris imager assembly comprises a wide field of view imager and the instructions are executable to cause the wide field of view imager to detect the face of the human subject, estimate a location of the face of the human subject in relation to a ground plane, and, based on the estimated location of the face of the human subject in relation to the ground plane, determine an amount by which to pivot the iris imager assembly.

7. The iris biometric recognition module of claim 1, wherein the iris imager assembly comprises an illuminator and an imager, and the instructions are executable to substantially synchronize pulsed illumination by the illuminator and iris image capture by the imager using a focal sweep technique.

8. An iris biometric recognition module comprising:

a base;

an iris imaging subsystem supported by the base;

a processor in electrical communication with the iris imaging subsystem;

a non-transitory storage medium readable by the processor, the non-transitory storage medium having embodied therein a plurality of instructions executable by the processor to cause the iris biometric recognition module to;

capture an image of an iris of an eye of a human subject in a capture zone;

compare data indicative of the captured iris image to reference iris data; and

output a signal indicative of an iris match determination.

9. The iris biometric recognition module of claim 8, wherein the iris imaging subsystem comprises an iris imager assembly supported by the base.

10. The iris biometric recognition module of claim 9, wherein the iris imager assembly comprises an infrared iris illuminator assembly and a narrow field of view imager adjacent the iris illuminator assembly.

11. The iris biometric recognition module of claim 10, wherein the infrared iris illuminator assembly comprises a plurality of infrared light emitting diodes.

12. The iris biometric recognition module of claim 11, comprising a baffle disposed between the infrared light emitting diodes and the narrow field of view imager.

13. The iris biometric recognition module of claim 12, comprising a diffuser covering the infrared light emitting diodes of the infrared iris illuminator assembly.

14. The iris biometric recognition module of claim 10, wherein the infrared iris illuminator assembly comprises first and second arrangements of infrared light emitting diodes, and the narrow field of view imager is disposed between the first and second arrangements of infrared light emitting diodes.

15. The iris biometric recognition module of claim 10, wherein the iris imager assembly comprises a visual cue illuminator adjacent the narrow field of view imager.

16. The iris biometric recognition module of claim 9, wherein the iris imager assembly is pivotably coupled to the base.

17. The iris biometric recognition module of claim 16, comprising a motor coupled to the iris imager assembly by a pivot linkage.

18. The iris biometric recognition module of claim 8, wherein the iris imaging subsystem comprises an iris imager assembly supported by the base and a face imager assembly supported by the base.

19. The iris biometric recognition module of claim 18, wherein the face imager assembly comprises an infrared face illuminator assembly and a wide field of view imager adjacent the infrared face illuminator assembly.

20. The iris biometric recognition module of claim 19, wherein the infrared face illuminator assembly comprises a plurality of infrared light emitting diodes supported by a concavely shaped mount base.

21. The iris biometric recognition module of claim 18, wherein the face imager assembly is adjacent the iris imager assembly, the iris imager assembly is pivotably coupled to the base and the face imager assembly is non-pivotably coupled to the base.

22. The iris biometric recognition module of claim 18, wherein the face imager assembly and the iris imager assembly are embodied in a single imaging device.