METHOD AND APPARATUS FOR FINGERPRINT IDENTIFICATION

• US 20170053149A1
• Filed: 06/09/2016
• Published: 02/23/2017
• Est. Priority Date: 08/21/2015
• Status: Abandoned Application

• Current Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: JIANG, Zhongsheng, TAO, Jun, LIU, Dan
• Application Number:
  US15/177,465
• Publication Number:
  US 20170053149A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06V 40/13 Sensors therefor
• CPC Class Codes: G06V 40/1306 non-optical, e.g. ultrasonic or capacitive sensing
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/1359 Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
• CPC Class Codes: G06V 40/1365 Matching; Classification

Abstract

A method for fingerprint identification includes acquiring a fingerprint image and extracting feature information of the fingerprint image, obtaining current operation information and obtaining a feature threshold corresponding to a security level of fingerprint identification based on the current operation information, and comparing the feature information with verification feature information stored in advance. Fingerprint identification succeeds if the comparison satisfies a comparison threshold and the fingerprint identification fails if the comparison fails to satisfy the comparison threshold.

Claims

1. An electronic device, comprising:

a processor-readable storage medium comprising a set of instructions for image identification; and

a processor in communication with the storage medium, wherein the processor is configured to;

obtain a target image for authorization of a target event though image identification;

obtain a target security requirement associated with the target event from a plurality of levels of security requirements;

determine whether the target image is successfully identified based on the target security requirement; and

operate the target event when the target image is successfully identified.

2. The electronic device of claim 1, further comprising:

a fingerprint identification sensor in communication with the processor,

wherein the processor is further configured to cause the fingerprint identification sensor to scan a fingerprint of a user as the target image.

3. The electronic device of claim 1, wherein the target event comprises at least one of running an application program or running a system operation.

4. The electronic device of claim 1, wherein to obtain the security requirement associated with the target event, the processor is further configured to:

obtain a target security level associated with the target event from a plurality of security levels; and

obtain a target feature threshold associated with the target security level.

5. The electronic device of claim 4, wherein the target security level associated with the target event is predetermined by a user of the mobile terminal.

6. The electronic device of claim 4, wherein the target feature threshold is predetermined by the user of the mobile terminal.

7. The electronic device of claim 4, wherein the processor is further configured to:

extract feature information from the target image,

wherein to determine whether the target image is successfully identified, the processor is further configured to;

determine a similarity value between the feature information with pre-stored verification feature information;

determine the target image is successfully identified when the similarity value is greater than the feature threshold; and

determine the target image is not identified when the similarity value is less than the feature threshold.

8. A method for image identification, comprising:

obtaining, by a mobile terminal, a target image for authorization of a target event though image identification;

selecting, by the mobile terminal, a target security requirement associated with the target event from a plurality of levels of security requirements;

determining, by the mobile terminal, whether the target image is successfully identified based on the selected target security requirement; and

operating, by the mobile terminal, the target event when the target image is successfully identified.

9. The method of claim 8, further comprising:

directing, by the mobile terminal, a fingerprint identification sensor to scan a fingerprint of a user as the target image.

10. The method of claim 8, wherein the target event comprises at least one of running an application program or running a system operation.

11. The method of claim 8, wherein selecting the target security requirement comprises:

obtaining a target security level associated with the target event from a plurality of security levels; and

obtaining a target feature threshold associated with the target security level.

12. The method of claim 11, wherein the target security level associated with the target event is predetermined by a user of the mobile terminal.

13. The method of claim 11, wherein the target feature threshold is predetermined by the user of the mobile terminal.

14. The method of claim 11, further comprising:

extracting, by the mobile terminal, feature information from the target image,

wherein the determining of whether the target image is successfully identified comprises;

determining a similarity value between the feature information with pre-stored verification feature information;

determining the target image is successfully identified when the similarity value is greater than the target feature threshold; and

determining the target image is not identified when the similarity value is less than the target feature threshold.

15. A processor-readable non-transitory storage medium, comprising a set of instruction for image identification, wherein when executed by a processor the set of instruction directs the processor to:

obtain a target image for authorization of a target event though image identification;

obtain a target security requirement associated with the target event from a plurality of levels of security requirements;

determine whether the target image is successfully identified based on the target security requirement; and

operate the target event when the target image is successfully identified.

16. The storage medium of claim 15, wherein the set of instructions further directs the processor to:

direct a fingerprint identification sensor to scan a fingerprint of a user as the target image.

17. The storage medium of claim 15, wherein to obtain the security requirement of image identification the set of instructions further directs the processor to:

select a target security level associated with the target event from a plurality of security levels; and

obtain a target feature threshold associated with the target security level.

18. The storage medium of claim 17, wherein the target security level associated with the target event is predetermined by a user of the mobile terminal

19. The storage medium of claim 17, wherein the target feature threshold is predetermined by the user of the mobile terminal.

20. The storage medium of claim 17, wherein the set of instructions further directs the processor to:

extract, by the mobile terminal, feature information from the target image,

wherein to determine whether the target image is successfully identified the set of instructions further directs the processor to;

determine a similarity value between the feature information with pre-stored verification feature information;

determine the target image is successfully identified when the similarity value is greater than the feature threshold; and

determine the target image is not identified when the similarity value is less than the feature threshold.