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Infrared emitter detection method and mobile terminal

An infrared transmitter and mobile terminal technology, applied in the testing of machine/structural components, optical instrument testing, instruments, etc., can solve the problem of difficulty in judging the abnormality of the infrared transmitter, the infrared function of the mobile terminal cannot be used normally, and the infrared ray cannot be emitted, etc. question

Active Publication Date: 2018-11-30
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In practical applications, the infrared transmitter will cause a certain degree of loss after being collided or used for a long time, and the infrared transmitter cannot emit infrared rays with normal power in the state of excessive loss, which will cause various infrared rays of the mobile terminal. Function not working properly
However, during the use of mobile terminals, it is usually difficult to judge whether the infrared transmitter is abnormal due to excessive loss

Method used

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  • Infrared emitter detection method and mobile terminal
  • Infrared emitter detection method and mobile terminal
  • Infrared emitter detection method and mobile terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0027] refer to figure 1 , which shows a flow chart of the method for detecting an infrared emitter according to Embodiment 1 of the present invention, which may specifically include the following steps:

[0028] S101. Acquire an infrared image, where the infrared image is obtained when the mobile terminal receives infrared rays emitted by an infrared emitter.

[0029] In the embodiment of the present invention, the mobile terminal can perform 3D face recognition in scenarios such as unlocking, payment, and opening an interface containing private information. When 3D face recognition is required, the infrared emitter can emit infrared rays to the user's face, When the infrared rays reach the user's face, they can be reflected by the user's face, so that the mobile terminal can receive the reflected infrared rays through the infrared camera, and then can capture an infrared image of the user's face. In practical applications, the infrared image is a grayscale image. Since the ...

Embodiment 2

[0039] refer to figure 2 , which shows a flow chart of the method for detecting an infrared emitter according to Embodiment 2 of the present invention, which may specifically include the following steps:

[0040] S201. Acquire a template image, where the template image is obtained when the mobile terminal receives infrared rays emitted by an infrared emitter with preset power.

[0041]In the embodiment of the present invention, the preset power may be the minimum transmit power of the infrared emitter when the mobile terminal is capable of 3D face recognition, that is, when the infrared emitter emits infrared rays at the preset power, the mobile terminal can just guarantee normal 3D face recognition. Face recognition, when the infrared transmitter emits infrared rays with a transmission power greater than the preset power, the mobile terminal can accurately perform 3D face recognition, but when the infrared transmitter emits infrared rays with a transmission power less than t...

Embodiment 3

[0075] refer to Figure 6 , which shows a structural block diagram of a mobile terminal 600 according to Embodiment 3 of the present invention, which may specifically include:

[0076] The first acquisition module 601 is configured to acquire an infrared image, and the infrared image is obtained when the mobile terminal receives infrared rays emitted by an infrared transmitter;

[0077] A first determining module 602, configured to determine a first set of pixels corresponding to each grayscale interval in the infrared image;

[0078] The second determining module 603 is configured to determine the average gray level of each target pixel in the infrared image, the target pixel is a pixel in a target pixel set, and the target pixel set is a pixel in each of the first pixel sets a first set of pixels whose quantity is greater than a preset number of pixels;

[0079] The third determining module 604 is configured to determine that the infrared emitter is abnormal when the avera...

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Abstract

The invention provides an infrared emitter detection method and mobile terminal, and relates to the technical field of hardware detection. The infrared emitter detection method comprises the followingsteps that an infrared image is obtained, and the infrared image is obtained when the mobile terminal receives infrared rays emitted by an infrared emitter; a first pixel set corresponding to each gray interval in the infrared image is determined; an average gray level of each target pixel in the infrared image is determined, the target pixel is the pixel in the target pixel set, and a target pixel set is the first pixel set with the number of pixels, in each first pixel set, greater than the number of preset pixels; and when the average gray level is less than the default gray value, the infrared emitter is determined to be abnormal. The mobile terminal can select the target pixel reflecting the overall brightness level from the infrared image, and therefore when the average gray level of the target pixel is less than the preset gray value, the condition that the infrared emitter cannot provide infrared rays with sufficient intensity is determined, and the infrared emitter can be determined to be abnormal.

Description

technical field [0001] The invention relates to the technical field of hardware detection, in particular to a detection method of an infrared emitter and a mobile terminal. Background technique [0002] With the continuous development of infrared technology, there are more and more mobile terminals with infrared functions. As an important infrared device in the mobile terminal, the infrared transmitter can provide the mobile terminal with the infrared rays needed to realize the infrared function. The infrared rays emitted by the infrared transmitter can be reflected by external objects and then returned to the mobile terminal, so that the mobile terminal can realize certain infrared functions based on the infrared rays reflected by external objects, such as 3D (three-dimensional, three-dimensional) face recognition, object Contour recognition and more. [0003] In practical applications, the infrared transmitter will cause a certain degree of loss after being collided or u...

Claims

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Application Information

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IPC IPC(8): G01M11/02G06T7/90G06T7/00
CPCG01M11/00G06T7/0002G06T7/90
Inventor 黄创杰顾瀚之
Owner VIVO MOBILE COMM CO LTD
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