Control method, control device, depth camera and electronic device

A control method, depth camera technology, applied in optical components, optics, instruments, etc., can solve problems such as improper laser control and user injury

Active Publication Date: 2018-09-28
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The laser projector can project a laser with predetermined pattern information, and project the laser onto the target user in the space, and then obtain the laser pattern reflected by the target

Method used

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  • Control method, control device, depth camera and electronic device
  • Control method, control device, depth camera and electronic device
  • Control method, control device, depth camera and electronic device

Examples

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0034] P...

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PUM

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Abstract

The invention discloses a laser projection module control method, a control device, a depth camera and an electronic device. A laser projection module comprises a laser emitter. The laser emitter includes point light sources which form a plurality of independently controlled light-emitting arrays. The control method comprises the steps of acquiring a first image and a second image of a user, calculating the projection distance between the user and the laser projection module according to the first image and the second image, determining the target number of light-emitting arrays according to the projection distance, and turning on the point light sources in the light-emitting arrays of the target number. According to the control method, the control device, the depth camera and the electronic device provided in the embodiment of the invention, the point light sources are divided into a plurality of light-emitting arrays which can be independently controlled. During the working of the laser projection module, the first image and the second image are acquired for calculating the projection distance. After that, the target number of the light-emitting arrays is determined according tothe projection distance. Therefore, the number of the turned-on light-emitting arrays can be prevented from being too large. The problem that the emitted laser energy is too large to cause harm to eyes of a user is solved.

Description

technical field [0001] The invention relates to the field of imaging technology, in particular to a control method of a laser projection module, a control device of the laser projection module, a depth camera and an electronic device. Background technique [0002] The laser projector can project a laser with predetermined pattern information, and project the laser onto the target user in the space, and then obtain the laser pattern reflected by the target user through the imaging device, so as to further obtain the depth image of the target user, however, Improper control of the laser projected by the laser projector is likely to cause injury to the user. Contents of the invention [0003] Embodiments of the present invention provide a control method of a laser projection module, a control device of the laser projection module, a depth camera and an electronic device. [0004] The present invention provides a method for controlling a laser projection module. The laser pro...

Claims

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Application Information

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IPC IPC(8): G02B27/42
CPCG02B27/4205
Inventor 张学勇
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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