Methods and systems for authenticating users

• US 9,519,820 B2
• Filed: 05/06/2013
• Issued: 12/13/2016
• Est. Priority Date: 01/20/2011
• Status: Active Grant

• Current Assignee: Corporation DAON Technology
• Original Assignee: Daon Holdings Limited
• Inventors: Sezille, Nicolas Jacques Jean
• Primary Examiner(s): Patel, Jayesh A
• Application Number:
  US13/887,395
• Publication Number:
  US 20130243267A1
• Time in Patent Office: 1,317 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06V 10/245 by locating a pattern; Special marks for positioning
• CPC Class Codes: G06V 40/13 Sensors therefor
• CPC Class Codes: G06V 40/1365 Matching; Classification

Abstract

A method of authenticating users is provided that includes capturing biometric authentication data of a user and processing the captured biometric data into an image. Moreover, the method includes determining a region of interest of the image and a gray scale image from the image, determining an optimum transformation parameter set within the region of interest, and aligning the gray scale image with an enrollment gray scale image generated during enrollment of the user using results of the optimum transformation parameter set determination. Furthermore, the method includes extracting biometric feature data from the gray scale image and verifying an identity of the user with extracted biometric feature data included in a region of agreement.

Claims

1. A method of authenticating users comprising:

generating, by a processor, an authentication mask from captured biometric data, the biometric data being captured from a user during an authentication matching transaction;

generating a gray scale image from the captured biometric data;

aligning the authentication mask with a user enrollment mask and the gray scale image with a second user gray scale image;

generating a biometric template from the aligned gray scale image;

comparing, by the processor, the authentication mask against the user enrollment mask to determine a region common to both; and

authenticating, by the processor, the user with biometric data, included in the biometric template, within the common region.

2. A method of authenticating users in accordance with claim 1 said aligning step further comprising applying a transformation against the authentication mask and the gray scale image.

3. A computing device for authenticating users comprising:

a processor; and

a memory configured to store at least enrollment masks and gray scale images, said computing device being associated with a network and said memory being in communication with said processor and having instructions stored thereon which, when executed by said processor, cause said computing device to;

generate an authentication mask from captured biometric data, the biometric data being captured from a user during an authentication matching transaction;

generate a gray scale image from the captured biometric data;

align the authentication mask with a user enrollment mask and the generated gray scale image with a user gray scale image;

generate a biometric template from the aligned gray scale image;

compare the authentication mask against the user enrollment mask to determine a region common to both; and

authenticate the user with biometric data, included in the biometric template, within the common region.

4. A computing device for authenticating users in accordance with claim 3, wherein when executed by said processor, the instructions further cause said computing device to apply a transformation against the authentication mask and the generated gray scale image to align the masks and gray scale images.

5. A computer program recorded on a non-transitory computer-readable recording medium included in a computing device for authenticating users, the computer program being comprised of instructions, which when read and executed by the computing device, cause the computing device to:

generate an authentication mask from captured biometric data, the biometric data being captured from a user during an authentication matching transaction;

generate a gray scale image from the captured biometric data;

align the authentication mask with a user enrollment mask and the generated gray scale image with a user gray scale image;

generate a biometric template from the aligned gray scale image;

compare the authentication mask against the user enrollment mask to determine a region common to both; and

authenticate the user with biometric data, included in the biometric template, within the common region.

6. A computer program in accordance with claim 5 further comprising instructions, which when read and executed by the computing device, cause the computing device to apply a transformation against the authentication mask and the generated gray scale image to align the masks and gray scale images.