Method of host-directed illumination and system for conducting host-directed illumination

• US 10,503,991 B2
• Filed: 11/27/2018
• Issued: 12/10/2019
• Est. Priority Date: 08/15/2011
• Status: Active Grant

• Current Assignee: Corporation DAON Technology
• Original Assignee: Daon Holdings Limited
• Inventors: Langley, Richard Jay, Peirce, Michael, Sezille, Nicolas Jacques Jean
• Primary Examiner(s): Werner, Brian
• Application Number:
  US16/200,695
• Publication Number:
  US 20190114498A1
• Time in Patent Office: 378 Days
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06V 10/141 Control of illumination
• CPC Class Codes: G06V 40/168 Feature extraction; Face representation
• CPC Class Codes: G06V 40/172 Classification, e.g. identification
• CPC Class Codes: G06V 40/45 Detection of the body part being alive
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231
• CPC Class Codes: H04W 12/065 Continuous authentication
• CPC Class Codes: H04W 12/12 Detection or prevention of fraud
• CPC Class Codes: H04W 12/65 Environment-dependent, e.g. using captured environmental data

Abstract

A method of host-directed illumination for verifying the validity of biometric data of a user is provided that includes capturing biometric data from a user with an authentication device during authentication and directing illumination of the biometric data from a host authentication system during the capturing operation. Moreover, the method includes comparing illumination characteristics of the captured biometric data against illumination characteristics expected to result from the directing operation, and determining that the user is a live user when the illumination characteristics of the captured biometric data match the illumination characteristics expected to result from the directing operation.

Claims

1. A method for detecting user liveness comprising:

capturing, by a computing device, a sequence of discrete images of the face of a user while a display screen included in the computing device turns on and off to apply illumination to the face of the user;

transmitting over a network, by the computing device, the sequence of discrete images to an authentication computer system;

recognizing, by the authentication computer system, reflections in a plurality of the images, the reflections resulting from the illumination applied during said capturing step; and

determining, by the authentication computer system, the user is live when the reflections recognized in each image included in the plurality of images correspond to the illumination applied during said capturing step.

2. A method for detecting user liveness in accordance with claim 1 further comprising authenticating, by the authentication computer system, the user based on one of the discrete images and a record user image.

3. A method for detecting user liveness in accordance with claim 1, further comprising illuminating the face of the user with light outside the visible spectrum.

4. A method for detecting user liveness in accordance with claim 1 further comprising transmitting over the network, by the authentication computer system, an illumination instruction to the computing device.

5. A method for detecting user liveness in accordance with claim 1 further comprising tracking movement of an illuminated region on the face of the user, the illuminated region being illuminated with light outside the visible spectrum.

6. An authentication computer system for detecting user liveness comprising:

a processor; and

a memory for storing data, said authentication computer system being associated with a network and said memory being in communication with said processor and having instructions stored thereon which, when read and executed by said processor cause said authentication computer system to;

recognize reflections in a plurality of images included in a sequence of discrete images, the sequence of discrete images being captured by a computing device and being transmitted to said authentication computer system over the network, the reflections resulting from turning on and off a display screen included in the computing device to apply illumination to the face of the user while capturing the sequence of discrete images; and

determine the user is live when the reflections recognized in each image included in the plurality of images correspond to the illumination applied while capturing the respective image.

7. An authentication computer system for detecting user liveness in accordance with claim 6, wherein the instructions when read and executed by said processor further cause said authentication computer system to authenticate the user based on one of the plurality of images and a record user image.

8. A method for detecting user liveness comprising:

capturing, by a computing device, a sequence of discrete images of the face of a user while a display screen included in the computing device turns on and off to apply illumination to the face of the user;

recognizing, by the computing device, reflections in a plurality of the images, the reflections resulting from the illumination applied during said capturing step; and

determining, by the computing device, the user is live when the reflections recognized in each image included in the plurality of images correspond to the illumination applied during said capturing step.

9. A method for detecting user liveness in accordance with claim 8 further comprising authenticating the user based on one of the discrete images and a record user image.

10. A method for detecting user liveness in accordance with claim 8, further comprising illuminating the face of the user with light outside the visible spectrum.

11. A method for detecting user liveness in accordance with claim 8 further comprising tracking movement of an illuminated region on the face of the user, the illuminated region being illuminated with light outside the visible spectrum.

12. A computing device for detecting user liveness comprising:

a display screen;

a processor; and

a memory configured to store data, said computing device being associated with a network and said memory being in communication with said processor and having instructions stored thereon which, when read and executed by said processor cause said computing device to;

capture a sequence of discrete images of the face of a user while said display screen turns on and off to apply illumination to the face of the user;

recognize reflections in a plurality of the images, the reflections resulting from the illumination applied during capture; and

determine the user is live when the reflections recognized in each image included in the plurality of images correspond to the illumination applied during said capturing step.

13. A computing device for detecting user liveness in accordance with claim 12, wherein the instructions when read and executed by said processor further cause said computing device to authenticate the user based on one of the discrete images and a record user image.

14. A computing device for detecting user liveness in accordance with claim 12, wherein the instructions when read and executed by said processor further cause said computing device to illuminate the face of the user with light outside the visible spectrum.

15. A computing device for detecting user liveness in accordance with claim 12, wherein the instructions when read and executed by said processor further cause said computing device to track movement of an illuminated region on the face of the user, the illuminated region being illuminated with light outside the visible spectrum.