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Fingerprint identification method and related device

A fingerprint identification and fingerprint feature technology, applied in the field of fingerprint identification methods and related devices, can solve the problems of high rejection rate, texture distortion, and low resolution of regional fingerprint images, and achieve the effect of increasing the degree of influence and reducing the degree of influence

Active Publication Date: 2021-06-01
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finger texture distortion will occur under conditions such as immersion and low temperature, and the image resolution of regional fingerprints is low. If the original local feature matching algorithm is used, the rejection rate will be high.

Method used

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  • Fingerprint identification method and related device
  • Fingerprint identification method and related device
  • Fingerprint identification method and related device

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Experimental program
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Effect test

Embodiment Construction

[0023] Fingerprint identification technology corresponds a person with his fingerprints, and by comparing his fingerprints with pre-saved fingerprints and identifying them through the detailed feature points of different fingerprints, his true identity can be verified. Feature points refer to breakpoints, bifurcation points and turning points where fingerprint lines often appear interrupted, bifurcated or turned. Each person's fingerprint lines are unique in their patterns, breakpoints, bifurcation points and turning points. And its uniqueness is invariable throughout life. It is by virtue of this uniqueness and stability that we can create fingerprint recognition technology. Fingerprint recognition technology has the advantages of fast recognition speed, convenient collection and low price, and is widely used in image processing, pattern recognition, computer vision and many other disciplines. Such as figure 1 as shown, figure 1 A schematic diagram of collecting fingerprin...

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Abstract

The embodiment of the present application discloses a fingerprint identification method and a related device. The method includes: collecting a first fingerprint image of a user's finger through a fingerprint module; converting the first fingerprint image into a second fingerprint image, and each of the second fingerprint images pixel points are determined according to multiple pixel points in the first fingerprint image; multiple fingerprint feature sets of the user's finger are generated according to the second fingerprint image, and each fingerprint feature set includes fingerprint feature points and associated texture features of fingerprint feature points And feature point matching weights and texture matching weights, the associated texture features include description information for reflecting the outline of the pattern where the fingerprint feature points are located; fingerprint comparison operations are performed for multiple fingerprint feature sets to obtain the comparison of each fingerprint feature set Matching result; determine the fingerprint recognition result according to the comparing result of multiple fingerprint feature sets. The embodiments of the present application are beneficial to reduce the rejection rate FRR of fingerprint identification, and improve the accuracy of fingerprint identification performed by electronic devices.

Description

technical field [0001] The present application relates to the technical field of electronic equipment, in particular to a fingerprint identification method and a related device. Background technique [0002] The current unlocking methods for electronic devices such as full-screen mobile phones mainly include 3D structured light and under-screen fingerprint solutions. Due to the limitation of the sensing area of ​​the single-point under-screen fingerprint, the user must press the designated position when unlocking, which is not good for the unlocking speed and user experience. A larger sensing area is what users want, and regional fingerprints or even full-screen fingerprints are the development trend of under-screen fingerprint solutions. The fingerprint under the screen uses the OLED display as the original light source. Due to the difference in reflection of light by the valleys and ridges of the fingerprint on the contact surface of the finger and the glass, the photosen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor 占文喜
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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