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Fingerprint unlocking method and mobile terminal

A mobile terminal, fingerprint unlocking technology, applied in the direction of acquiring/organizing fingerprints/palmprints, matching and classification, character and pattern recognition, etc., can solve the problem of low unlocking success rate, achieve the effect of expanding the area and improving the success rate

Active Publication Date: 2021-04-13
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a fingerprint unlocking method and a mobile terminal to solve the problem of low success rate of unlocking

Method used

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  • Fingerprint unlocking method and mobile terminal
  • Fingerprint unlocking method and mobile terminal
  • Fingerprint unlocking method and mobile terminal

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Embodiment Construction

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The technical solutions provided by various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] figure 1 It is a schematic flowchart of a fingerprint unlocking method according to an embodiment of the present invention. Such as figure 1 As shown, the methods of fingerprint unloc...

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Abstract

The invention discloses a fingerprint unlocking method and a mobile terminal. The method comprises: acquiring a first fingerprint image based on a first fingerprint collection center point in response to a pressing operation; Match; if the matching fails, match the second fingerprint image with the pre-stored fingerprint image template, the second fingerprint image corresponds to the second fingerprint collection center point, and the second fingerprint collection center point is based on the first fingerprint The acquisition center point and the preset offset are determined; if the second fingerprint image matches the pre-stored fingerprint image template successfully, an unlocking operation is performed. In this scheme, the position of the fingerprint acquisition central point of the second fingerprint image is different from that of the first fingerprint image, and the second fingerprint image and the first fingerprint image partially overlap or do not overlap at all, which expands the difference with the pre-stored fingerprint image. The region on the user's finger that the template matches improves the success rate of fingerprint unlocking.

Description

technical field [0001] The invention relates to the technical field of terminals, in particular to a fingerprint unlocking method and a mobile terminal. Background technique [0002] Biometrics are changing rapidly. In particular, fingerprint recognition technology is developing rapidly. From capacitive fingerprints to screen fingerprints, screen fingerprint technology is gradually maturing, and is transitioning from small areas to large areas. The basic principle of fingerprint recognition is to obtain a fingerprint image through the fingerprint sensor, then perform image preprocessing, and then extract feature points and compare them with the registered template. If the fingerprint image matches the registered template, the mobile terminal is unlocked; if the fingerprint image does not match the registered template, the mobile terminal is not unlocked. [0003] In the prior art, when the user presses on the screen, the screen of the mobile terminal senses the user's pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/32G06K9/00
CPCG06F21/32G06V40/1365
Inventor 张晗玉刘伟
Owner VIVO MOBILE COMM CO LTD
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