Optical fingerprint identification method and device, terminal equipment and storage medium

A fingerprint identification and optical technology, which is applied in the field of image processing, can solve the problems such as the reduction of fingerprint matching accuracy

Pending Publication Date: 2021-09-17
CHIPONE TECH BEIJINGCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing fingerprint identification process, when the collected fingerprints are matched with the entered fingerprints, if the collected fingerprints are affected by the collection environment and become incomplete, the accuracy of the fingerprint matching that relies on the collected fingerprints will be reduced.

Method used

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  • Optical fingerprint identification method and device, terminal equipment and storage medium
  • Optical fingerprint identification method and device, terminal equipment and storage medium
  • Optical fingerprint identification method and device, terminal equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] see figure 1 , figure 1 It is a schematic flowchart of an optical fingerprint identification method disclosed in the embodiment of the present application. Such as figure 1 As shown, the optical fingerprint identification method of the embodiment of the present application includes steps:

[0064] 101. Acquire the first fingerprint image of the fingerprint collection area, and the finger detection information formed by the user's finger in the fingerprint collection area and the surrounding areas of the fingerprint collection area;

[0065] 102. Identify the pressing angle of the user's finger according to the finger detection information;

[0066] 103. Rotate the pre-registered second fingerprint image and the first fingerprint image to the same direction according to the pressing angle;

[0067] 104. Perform fingerprint matching on the first fingerprint image and the second fingerprint image in the same direction, and obtain a matching result.

[0068] In this em...

Embodiment 2

[0091] see Figure 9 , Figure 9 It is a schematic structural diagram of an optical fingerprint identification device disclosed in the embodiment of the present application. Such as Figure 9 As shown, the optical fingerprint identification device of the embodiment of the present application includes:

[0092] The collection module 201 is used to obtain the first fingerprint image of the fingerprint collection area, and the finger detection information formed by the user's finger in the fingerprint collection area and the surrounding areas of the fingerprint collection area;

[0093] The identification module 202 is configured to identify the pressing angle of the user's finger according to the finger detection information;

[0094] An image processing module 203, configured to rotate the pre-registered second fingerprint image and the first fingerprint image to the same direction according to the pressing angle;

[0095] The matching module 204 is configured to perform fi...

Embodiment 3

[0113] see Figure 10 , Figure 10 It is a schematic structural diagram of a terminal device disclosed in the embodiment of this application. Such as Figure 10 As shown, the embodiment of the present application discloses a terminal device, including a memory 301 and a processor 302. The memory 301 stores computer-readable instructions. When the computer-readable instructions are executed by the processor 302, the processor 302 executes the implementation of the present application. Example 1 of the optical fingerprint recognition method.

[0114] The terminal device of the embodiment of the present application can identify the pressing angle of the finger through the finger detection information formed by the user's finger in the fingerprint collection area and the surrounding area of ​​the fingerprint collection area by implementing the optical fingerprint recognition method, and then can pre-rotate the rotation according to the pressing angle. The entered second fingerp...

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PUM

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Abstract

The invention provides an optical fingerprint identification method and device, terminal equipment and a storage medium, and the method comprises the steps: obtaining a first fingerprint image of a fingerprint collection region, and finger detection information formed by a finger of a user in the fingerprint collection region and a peripheral region of the fingerprint collection region; identifying a pressing angle of a finger of the user according to the finger detection information; rotating a pre-recorded second fingerprint image and the first fingerprint image to the same direction according to the pressing angle; and performing fingerprint matching on the first fingerprint image and the second fingerprint image in the same direction, and obtaining a matching result. According to the fingerprint recognition method and device, the fingerprint recognition accuracy can be improved, and particularly, when fingerprints collected in extreme environments such as poor light are recognized, the higher recognition accuracy is achieved.

Description

technical field [0001] The present application relates to the field of image processing, in particular, to an optical fingerprint identification method, device, terminal equipment, and storage medium. Background technique [0002] In the existing fingerprint recognition process, when the collected fingerprint is matched with the entered fingerprint, if the collected fingerprint is affected by the collection environment and becomes incomplete, the accuracy of fingerprint matching dependent on the collected fingerprint will be reduced. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide an optical fingerprint identification method, device, terminal device, and storage medium, which are used to improve the accuracy of user fingerprint identification. [0004] To this end, the first aspect of the present application discloses an optical fingerprint identification method, the method comprising: [0005] Acquiring the first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/20G06K9/32
Inventor 冯继雄田志民陈子轩王长海李保梁宋子明陈世林
Owner CHIPONE TECH BEIJINGCO LTD
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