METHOD OF UPDATING BIOMETRIC FEATURE PATTERN AND ELECTRONIC DEVICE FOR SAME

• US 20160171280A1
• Filed: 12/14/2015
• Published: 06/16/2016
• Est. Priority Date: 12/15/2014
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Han, Young-Eun, Lee, Ki-Huk, Jeon, Bo-Seul, Kim, Moon-Soo, Son, Kwang-Sub
• Application Number:
  US14/968,604
• Publication Number:
  US 20160171280A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/1365 Matching; Classification
• CPC Class Codes: G06V 40/18 Eye characteristics, e.g. of the iris
• 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: G06V 40/50 Maintenance of biometric data or enrolment thereof

Abstract

Disclosed is a method of updating a biometric feature pattern by an electronic device. The method includes acquiring a plurality of biometric images. The method also includes comparing each of the plurality of biometric images with a pre-registered feature pattern. The method further includes determining a biometric image that matches the pre-registered feature pattern among the plurality of biometric images. In addition, the method includes updating the pre-registered feature pattern by adding at least one feature point of a biometric image that does not match the pre-registered feature pattern among the plurality of biometric images to the pre-registered feature pattern.

Claims

1. A method of updating a biometric feature pattern comprising:

acquiring a plurality of biometric images;

comparing each of the plurality of biometric images with a pre-registered feature pattern;

determining a biometric image that matches the pre-registered feature pattern among the plurality of biometric images; and

updating the pre-registered feature pattern by adding at least one feature point of a biometric image that does not match the pre-registered feature pattern among the plurality of biometric images to the pre-registered feature pattern.

2. The method of claim 1, wherein the pre-registered feature pattern corresponds to at least a part or an entirety of whole feature pattern of the biometric image.

3. The method of claim 1, wherein the biometric image is one of an iris image or a fingerprint image.

4. The method of claim 1, wherein the updating of the pre-registered feature pattern includes adding at least one feature point of the biometric image, that matches the pre-registered feature pattern, to the pre-registered feature pattern.

5. The method of claim 1, wherein the pre-registered feature pattern is one of an iris code or template.

6. The method of claim 1, wherein the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image having a time difference within a threshold among the plurality of biometric images, the time difference being between a time point when the biometric image that matches the pre-registered feature pattern is acquired and a time point when the biometric image that does not match the pre-registered feature pattern is acquired.

7. The method of claim 1, wherein the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image having a sensor data difference within a threshold among the plurality of biometric images, the sensor data difference being between sensor data when the biometric image that matches the pre-registered feature pattern is acquired and sensor data when the biometric image that does not match the pre-registered feature pattern is acquired.

8. The method of claim 1, wherein the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image having a difference from another piece of biometric information on a user when the biometric image that matches the pre-registered feature pattern is acquired among the plurality of biometric images.

9. The method of claim 1, wherein the plurality of biometric images corresponds to a plurality of a series of successive biometric images.

10. The method of claim 1, wherein the biometric image that matches the pre-registered feature pattern among the plurality of biometric images corresponds to a biometric image, that matches the pre-registered feature pattern by a predetermined ratio or more, based on a comparison with the pre-registered feature pattern, and the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image, that matches the pre-registered image by a ratio smaller than the predetermined ratio, based on the comparison with the pre-registered feature pattern.

11. The method of claim 10, further comprising temporarily storing the biometric image, that matches the pre-registered feature pattern by the ratio smaller than the predetermined ratio, based on a result of the comparison with the pre-registered feature pattern.

12. The method of claim 11, wherein, when the biometric image that matches the pre-registered feature pattern is determined, the updating of the pre-registered feature pattern comprises updating the pre-registered feature pattern by using the temporarily stored biometric image that matches the pre-registered image by the ratio smaller than the predetermined ratio.

13. The method of claim 1, further comprising performing a function corresponding to biometric authentication success when the biometric image that matches the pre-registered feature pattern is determined.

14. An electronic device for updating a biometric feature pattern, the electronic device comprising:

a memory configured to store a pre-registered feature pattern on a user;

a sensor configured to receive an input of a biometric image; and

a controller configured to;

compare each of the plurality of biometric images with a pre-registered feature pattern,

determine a biometric image that matches the pre-registered feature pattern among the plurality of biometric images, and

update the pre-registered feature pattern by adding at least one feature point of a biometric image that does not match the pre-registered feature pattern among the plurality of biometric images to the pre-registered feature pattern.

15. The electronic device of claim 14, wherein the pre-registered feature pattern corresponds to at least a part or an entirety of whole feature pattern of the biometric image.

16. The electronic device of claim 14, wherein the sensor includes at least one of a camera module that receives an iris image or a fingerprint sensor that receives a fingerprint image.

17. The electronic device of claim 14, wherein the controller is configured to add at least one feature point of the biometric image, that matches the pre-registered feature pattern, to pre-registered feature pattern.

18. The electronic device of claim 14, wherein the pre-registered feature pattern is one of an iris code or template.

19. The electronic device of claim 14, wherein the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image having a time difference within a threshold among the plurality of biometric images, the time difference being between a time point when the biometric image that matches the pre-registered feature pattern is acquired and a time point when the biometric image that does not match the pre-registered feature pattern is acquired.

20. The electronic device of claim 14, wherein the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image having a sensor data difference within a threshold among the plurality of biometric images, the sensor data difference being between sensor data when the biometric image that matches the pre-registered feature pattern is acquired and sensor data when the biometric image that does not match the pre-registered feature pattern is acquired.

21. The electronic device of claim 14, wherein the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image having a difference from another piece of biometric information on a user when the biometric image that matches the pre-registered feature pattern is acquired among the plurality of biometric images.

22. The electronic device of claim 14, wherein the plurality of biometric images corresponds to a plurality of a series of successive biometric images.

23. The electronic device of claim 14, wherein the biometric image that matches the pre-registered feature pattern among the plurality of biometric images corresponds to a biometric image, that matches the pre-registered feature pattern by a predetermined ratio or more, based on a comparison with the pre-registered feature pattern, and the biometric image that does not match the pre-registered feature pattern corresponds to a biometric image, that matches the pre-registered image by a ratio smaller than the predetermined ratio, based on the comparison with the pre-registered feature pattern.

24. The electronic device of claim 23, wherein the controller is configured to temporarily store the biometric image, that matches the pre-registered feature pattern by the ratio smaller than the predetermined ratio, based on the comparison with the pre-registered feature pattern.

25. The electronic device of claim 24, wherein, when the biometric image that matches the pre-registered feature pattern is determined, the controller is configured to update the pre-registered feature pattern by using the temporarily stored biometric image that matches the pre-registered image by the ratio smaller than the predetermined ratio.

26. The electronic device of claim 14, wherein, when the biometric image that matches the pre-registered feature pattern is determined, the controller is configured to perform a function corresponding to biometric authentication success.