Unlock instant, AI-driven research and patent intelligence for your innovation.

A face unlocking method, mobile terminal and computer-readable storage medium

A mobile terminal and computer program technology, applied in the field of face recognition, can solve the problems of data overexposure, inability to face data, matching, etc., to reduce the exposure convergence time and improve the face unlocking speed.

Active Publication Date: 2020-12-29
NUBIA TECHNOLOGY CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the phone is turned off after the screen is turned off and cannot perceive the current ambient brightness, the mismatch between the initial exposure value setting and the current ambient light causes the data of the first few frames to be overexposed or too dark, which cannot be used for face data matching.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A face unlocking method, mobile terminal and computer-readable storage medium
  • A face unlocking method, mobile terminal and computer-readable storage medium
  • A face unlocking method, mobile terminal and computer-readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] A face unlocking method provided by an embodiment of the present invention, such as image 3 shown, including the following steps:

[0081] S101, acquiring an initial exposure value corresponding to each of the multiple cameras of the image acquisition component;

[0082] S102. Perform automatic exposure convergence on the plurality of cameras respectively according to the initial exposure value corresponding to each camera;

[0083] S103, when the convergence of any camera is completed, the recognized face area is transmitted to the processor to obtain a face image;

[0084] S104. Perform face unlocking by using the face image.

[0085] The plurality of cameras in the embodiment of the present invention can be two cameras, that is to say, the convergence device in the embodiment of the present invention is especially suitable for mobile terminals with dual cameras; of course, with the development of science and technology, when there are 3 or more cameras Mobile pho...

Embodiment 2

[0095] A face unlocking method provided by an embodiment of the present invention, such as Figure 4 shown, including the following steps:

[0096] S201. Set the initial exposure values ​​for the plurality of cameras respectively according to brightness values ​​of different environments;

[0097] S202, acquiring an initial exposure value corresponding to each of the multiple cameras of the image acquisition component;

[0098] S203. Perform automatic exposure convergence on the plurality of cameras respectively according to the initial exposure value corresponding to each camera;

[0099] S204, when the convergence of any camera is completed, the recognized face area is transmitted to the processor to obtain a face image;

[0100] S205. Perform face unlocking by using the face image.

[0101] In the embodiment of the present invention, the initial exposure values ​​are respectively set for the plurality of cameras according to the brightness values ​​of different environme...

Embodiment 3

[0111] A face unlocking method provided by an embodiment of the present invention, such as Figure 5 shown, including the following steps:

[0112] S301. Turn on the multiple cameras after the image acquisition component is started.

[0113] S302. Obtain an initial exposure value corresponding to each of the multiple cameras of the image acquisition component;

[0114] S303. Perform automatic exposure convergence on the plurality of cameras respectively according to the initial exposure value corresponding to each camera;

[0115] S304. When the convergence of any camera is completed, transmit the recognized face area to the processor to obtain a face image;

[0116] S305. Perform face unlocking by using the face image.

[0117] In the embodiment of the present invention, after the image acquisition component is started, the multiple cameras are turned on, and the initial exposure value corresponding to each camera among the multiple cameras of the image capture component i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a face unlocking method, a mobile terminal and a computer-readable storage medium. The method includes: acquiring an initial exposure value corresponding to each camera in a plurality of cameras of an image acquisition component; For the initial exposure value corresponding to the camera, perform automatic exposure convergence on the plurality of cameras respectively; when the convergence of any camera is completed, transmit the recognized face area to the processor to obtain a face image; use the face Image for face unlock. The technical solution provided by the present invention accelerates the AE convergence speed in more environments, thereby reducing the exposure convergence time and improving the face unlocking speed.

Description

technical field [0001] Embodiments of the present invention relate to the field of face recognition, and in particular to a face unlocking method, a mobile terminal, and a computer-readable storage medium. Background technique [0002] The current face unlocking technology uses a single front camera to collect face data and send it to the background algorithm for face data matching to unlock. Since the phone is turned off after the screen is turned off and cannot perceive the current ambient brightness, the mismatch between the initial exposure value setting and the current ambient light causes the data in the first few frames to be overexposed or too dark, which cannot be used for face data matching. When the AE (Auto Exposure) algorithm of the mobile phone converges to an appropriate exposure value to obtain a photo with appropriate brightness, it takes several frames. [0003] Therefore, the present invention provides a face unlocking method, a mobile terminal and a comp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/32G06K9/00
CPCG06F21/32G06V40/172
Inventor 马亮
Owner NUBIA TECHNOLOGY CO LTD