METHODS AND SYSTEMS FOR ENHANCING USER LIVENESS DETECTION

• US 20180046852A1
• Filed: 09/14/2016
• Published: 02/15/2018
• Est. Priority Date: 08/09/2016
• Status: Active Grant

• Current Assignee: Corporation DAON Technology
• Original Assignee: Mircea Ionita
• Inventors: IONITA, Mircea
• Granted Patent: US 10,210,380 B2
• Time in Patent Office: Days
• CPC Class Codes: G06V 10/17 using hand-held instruments
• CPC Class Codes: G06V 40/161 Detection; Localisation; Normalisation
• CPC Class Codes: G06V 40/166 using acquisition arrangements
• CPC Class Codes: G06V 40/167 using comparisons between temporally consecutive images
• CPC Class Codes: G06V 40/45 Detection of the body part being alive

Abstract

A method for enhancing user liveness detection is provided that includes calculating, by a computing device, parameters for each frame in a video of captured face biometric data. Each parameter results from movement of at least one of the computing device and the biometric data during capture of the biometric data. The method also includes creating a signal for each parameter and calculating a similarity score. The similarity score indicates the similarity between the signals. Moreover, the method includes determining the user is live when the similarity score is at least equal to a threshold score.

Claims

1. A method for enhancing user liveness detection comprising:

calculating, by a computing device, parameters for frames included in a video of captured face biometric data, each parameter resulting from movement of at least one of the computing device and the biometric data during capture of the biometric data;

creating a signal for each parameter;

calculating a similarity score, the similarity score indicating the similarity between the signals; and

determining the user is live when the similarity score is at least equal to a threshold score.

2. A method for enhancing user liveness detection in accordance with claim 1, said calculating parameters step further comprising calculating, for each frame, an angle of light illuminating the biometric data.

3. A method for enhancing user liveness detection in accordance with claim 2, said calculating parameters step further comprising calculating a second angle for each frame, the second angle being between a plane defined by a front face of the computing device and a vertical axis.

4. A method for enhancing user liveness detection in accordance with claim 1, said calculating parameters step further comprising:

calculating a perpendicular distance for each point of interest within a field of view of the computing device; and

calculating an angle for each frame, the angle being between a plane defined by a front face of the computing device and a vertical axis.

5. A computing device for enhancing user liveness detection comprising:

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;

calculate parameters for frames included in a video of captured face biometric data, each parameter resulting from movement of at least one of the computing device and the biometric data during capture of the biometric data;

create a signal for each parameter;

calculate a similarity score, the similarity score indicating the similarity between the signals; and

determine the user is live when the similarity score is at least equal to a threshold score.

6. A computing device for enhancing user liveness detection in accordance with claim 5, wherein the instructions when read and executed by said processor, cause said computer device to calculate, for each frame, an angle of light illuminating the biometric data.

7. A computing device for enhancing user liveness detection in accordance with claim 6, wherein the instructions when read and executed by said processor, cause said computer device to calculate a second angle for each frame, the second angle being between a plane defined by a front face of the computing device and a vertical axis.

8. A computing device for enhancing user liveness detection in accordance with claim 6, wherein the instructions when read and executed by said processor, cause said computer device to:

calculate a perpendicular distance for each point of interest within a field of view of the computing device; and

calculate an angle for each frame, the angle being between a plane defined by a front face of the computing device and a vertical axis.

9. A method for enhancing user liveness detection comprising:

calculating, by a computing device, an illumination-based parameter for frames included in a video of captured face biometric data, the parameter resulting from movement of at least one of the computing device and the biometric data during capture of the biometric data;

creating a signal for the parameter;

calculating a total change in the signal and incremental changes between sequential frames; and

determining the user is live when the signal is monotonous, the total change is less than ten percent, and the incremental change between all sequential frames is less than twenty percent of the total change.