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Fingerprint identification method and related equipment

A technology of fingerprint identification and fingerprint collection, which is applied in the electronic field, can solve problems affecting fingerprint identification, etc., and achieve the effect of improving quality and fingerprint identification rate

Active Publication Date: 2019-01-18
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the strong light scene, because the external infrared light and red light are too strong, they can penetrate the finger and affect the collected fingerprint image, which in turn affects the subsequent fingerprint recognition.

Method used

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  • Fingerprint identification method and related equipment
  • Fingerprint identification method and related equipment
  • Fingerprint identification method and related equipment

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the solutions of the application, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

[0026] Detailed descriptions are given below.

[0027] The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, not to describe a specific order . In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For exam...

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Abstract

A fingerprint identification method and related equipment are disclosed, applied to a mobile terminal comprising a touch control screen, a processor and a fingerprint sensor. The touch control screencomprises a fingerprint acquisition area and the fingerprint sensor is arranged below the fingerprint acquisition area. The method comprises the following steps: when detecting a touch operation of afinger on the fingerprint acquisition area, determining a central touch point of the fingerprint acquisition area by the processor; controlling a fingerprint sensor to acquire a signal of the first region to obtain a first fingerprint image of the finger, the center of the first region being a central touch point; cutting the first fingerprint image to obtain a second fingerprint image when the brightness of the environment in which the mobile terminal is currently located is greater than or equal to the preset brightness, wherein the center point of the second fingerprint image is the same asthe center point of the first fingerprint image, and the area of the second fingerprint image is smaller than the area of the first fingerprint image; performing a fingerprint identification operation based on the second fingerprint image. The embodiment of the present application is adopted, the fingerprint identification rate can be improved.

Description

Technical field [0001] This application relates to the field of electronic technology, in particular to a fingerprint identification method and related equipment. Background technique [0002] The principle of fingerprint collection under the screen is to use the light emitted by the touch screen to illuminate the finger placed on the touch screen. The light emitted by the touch screen is reflected when it reaches the finger, and the fingerprint sensor placed under the touch screen receives the reflected light. Signal, due to the uneven lines of the fingerprint, the light absorption amplitude is different, resulting in fingerprint images with different brightness. In a strong light scene, because the external infrared light and red light are too strong, they can penetrate the finger and affect the collected fingerprint image, which in turn affects the subsequent fingerprint recognition. Summary of the invention [0003] The embodiment of the present application provides a fingerp...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/13
Inventor 袁石林
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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