Eye tracking system with biometric identification

• US 10,201,274 B2
• Filed: 10/18/2017
• Issued: 02/12/2019
• Est. Priority Date: 10/20/2016
• Status: Active Grant

• Current Assignee: Oculogica, Inc.
• Original Assignee: Oculogica, Inc.
• Inventors: Samadani, Rosina, Sanderson, Daniel O.
• Primary Examiner(s): Blouin, Mark S
• Application Number:
  US15/786,759
• Publication Number:
  US 20180110410A1
• Time in Patent Office: 482 Days
• Field of Search: 340 582
• CPC Class Codes: A61B 2503/12 Healthy persons not otherwise provided for, e.g. subjects of a marketing survey
• CPC Class Codes: A61B 3/0041 characterised by display arrangements
• CPC Class Codes: A61B 3/0083 provided with means for patient positioning
• CPC Class Codes: A61B 3/113 for determining or recording eye movement
• CPC Class Codes: A61B 5/004 adapted for image acquisition of a particular organ or body part A61B5/0082 takes precedence; arrangements for optical scanning A61B5/0062
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/1171 based on the shapes or appearances of their bodies or parts thereof
• CPC Class Codes: A61B 5/163 by tracking eye movement, gaze, or pupil change
• CPC Class Codes: A61B 5/168 Evaluating attention deficit, hyperactivity
• CPC Class Codes: A61B 5/40 Detecting, measuring or recording for evaluating the nervous system A61B5/4806, A61B5/4821, A61B5/4824 take precedence
• CPC Class Codes: A61B 5/4064 Evaluating the brain A61B5/031, A61B5/369, A61B5/14553 take precedence
• CPC Class Codes: A61B 5/7264 Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems neural networks per se G06N3/00; expert systems per se G06N5/00
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick

Abstract

A method for measuring eye tracking in a patient and capturing ocular biometric identifying information from the patient may involve: displaying a video to the patient on a stimulus screen of an eye tracking and biometric identification system; tracking movement of the patient'"'"'s eyes during display of the video via an eye tracking camera of the eye tracking and biometric identification system; capturing ocular biometric identifying information from the patient with an ocular biometric capture device of the eye tracking and biometric identification system; generating, with a computer processor of the eye tracking and biometric identification system, a score representing an ability of the patient'"'"'s eyes to track the video; and confirming, with the computer processor, an identity of the patient, based on the captured ocular biometric identifying information.

Claims

1. A system for measuring eye tracking in a patient and identifying the patient by capturing ocular biometric identifying information from the patient and matching the captured ocular biometric identifying information with a record of biometric data, the system comprising:

a head rest assembly for stabilizing the patient'"'"'s head;

an operator console for receiving user inputs to control the system;

a stimulus screen on the headrest assembly, for displaying a video to the patient;

an eye tracking camera on the headrest assembly;

an ocular biometric capture device coupled with the headrest assembly, for capturing the ocular biometric identifying information from the patient;

a central processing unit for controlling the stimulus screen, data processing and other functions of the system; and

a biometric matching engine and database in communication with the central processing unit for matching the captured ocular biometric identifying information with a record of biometric data.

2. The system of claim 1, wherein the eye tracking camera is positioned below the stimulus screen, and the ocular biometric capture device is attached to the head rest assembly above the stimulus screen.

3. The system of claim 1, wherein the ocular biometric capture device is separate from the eye tracking camera.

4. The system of claim 1, wherein the ocular biometric capture device is incorporated into the eye tracking camera.

5. The system of claim 1, wherein the biometric matching engine and database comprises ocular biometric scans of multiple patients, and wherein the central processing unit is configured to check the captured ocular biometric identifying information from the patient against the ocular biometric scans of the multiple patients.

6. The system of claim 1, further comprising at least one light source for illuminating the patient'"'"'s eyes, wherein the ocular biometric capture device is configured to capture reflections of light emitted by the at least one light source after they are reflected by the patient'"'"'s eyes.

7. The system of claim 6, wherein the at least one light source is selected from the group consisting of an infrared light source, a near infrared light source and a visible light source.

8. The system of claim 7, wherein the ocular biometric capture device is selected from the group consisting of an infrared camera, a near infrared camera, and a visible light camera.

9. The system of claim 6, wherein the at least one light source comprises a light emitting diode.

10. A method for measuring eye tracking in a patient and identifying the patient by capturing ocular biometric identifying information from the patient and matching it with a record of biometric data, the method comprising:

adjusting a vertical height of a head rest assembly of an eye tracking system;

displaying a video to the patient on a stimulus screen on the head rest assembly of the eye tracking system, according to a video selection made by the patient;

tracking movement of the patient'"'"'s eyes during display of the video via an eye tracking camera on the head rest assembly of the eye tracking system;

capturing ocular biometric identifying information from the patient with an ocular biometric capture device coupled with the head rest assembly of the eye tracking system;

generating, with a computer processor of the eye tracking system, a score representing an ability of the patient'"'"'s eyes to track the video; and

confirming, with the computer processor, an identity of the patient, by matching the captured ocular biometric identifying information with the record of biometric data.

11. The method of claim 10, further comprising:

receiving user information input by a user via a touchscreen interface of the eye tracking system;

receiving patient information input by the user via the touchscreen interface; and

receiving a video selection from the patient via the stimulus screen of the eye tracking system.

12. The method of claim 10, wherein displaying the video to the patient comprises displaying images associated with a time stamp driven by a system clock.

13. The method of claim 10, wherein confirming the identity of the patient comprises comparing, with the computer processor, the captured ocular biometric identifying information with multiple patient scans stored on a database operatively coupled with the computer processor.

14. The method of claim 13, wherein the database is located in the cloud, and wherein the method further comprises transmitting the captured ocular biometric identifying information to the database in the cloud.

15. The method of claim 14, further comprising using a cloud-based computing service to search the database.

16. The method of claim 15, wherein the captured ocular biometric identifying information, if returned from the cloud-based computing service, causes an association to be established between the patient and a previously enrolled patient.

17. The method of claim 15, wherein if the captured ocular biometric identifying information is not returned from the cloud-based computing service, the computer processor causes the captured ocular biometric identifying information to be enrolled in the cloud-based computing service, unless the eye-tracking session is still ongoing, wherein a new biometric sample is captured and sent to the cloud-based service.

18. The method of claim 10, wherein the capturing and confirming steps are performed before the video is displayed.

19. The method of claim 10, wherein the capturing and confirming steps are performed while the video is displayed.

20. The method of claim 10, wherein the ocular biometric capture device is incorporated into the eye tracking camera.