Dot matrix generation method and device, storage medium, electronic equipment and VCSEL array light source

An array light source and dot matrix technology, applied in the field of 3D imaging, can solve problems such as poor control of point spacing, low irrelevance, and difficulty in light source manufacturing

Active Publication Date: 2020-11-03
DONGGUAN VISIONX-TECH CO LTD
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Problems solved by technology

[0004] At present, in some patent documents, there is such a technology: in the design of the VCSEL array light source, the array with certain irrelevance is obtained by transforming a certain sub-region, but this method has the problem of low local i...

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  • Dot matrix generation method and device, storage medium, electronic equipment and VCSEL array light source
  • Dot matrix generation method and device, storage medium, electronic equipment and VCSEL array light source
  • Dot matrix generation method and device, storage medium, electronic equipment and VCSEL array light source

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0039] In this embodiment, the dot matrix generation method can be used to design the dot matrix of the VCSEL array light source in the laser projection module. Before introducing the dot matrix generation method, the background of the dot matrix generation method is introduced here, so as to facilitate the understanding of this solution.

[0040] see figure 1 , figure 1 It is a schematic diagram of a laser projection module 100 provided in the embodiment of the present application. In this embodiment, the laser projection module 100 may include a VCSEL array light source 101 , a collimating mirror 102 and a diffractive optical element 103 .

[0041] Among them, the VCSEL array light source 101 is usually a two-dimensional light source composed of many sub-light sources arranged in a two-dimensio...

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Abstract

The invention provides a dot matrix generation method and device, a storage medium, electronic equipment and a VCSEL array light source, and the method comprises the steps: obtaining the regional parameters of a dot matrix region corresponding to the VCSEL array light source and a preset dot spacing parameter, wherein the dot spacing parameter represents the minimum distance between any two pointsin the dot matrix region; and generating random points in the dot matrix area according to the area parameters and the dot spacing parameters to obtain a dot matrix corresponding to the VCSEL array light source. In this way, the height irrelevance of the dot matrix can be guaranteed, area parameters and dot spacing parameters can be set according to actual needs, the dot matrix with the height irrelevance and meeting the requirements is obtained as much as possible according to the actual needs, scattered spots projected to the space by the VCSEL array light source have the high irrelevance,and therefore the high irrelevance of the scattered spots is guaranteed. Therefore, the calculation or acquisition of the structured light depth information is facilitated. Moreover, according to thedot matrix obtained in the mode, speckles projected to the space have uniqueness, and depth information reconstruction of speckle structured light can be well met.

Description

technical field [0001] The present application relates to the technical field of 3D imaging, in particular, to a dot matrix generation method, device, storage medium, electronic equipment and VCSEL array light source. Background technique [0002] In recent years, 3D (3-Dimension, three-dimensional) imaging has been widely used in the field of consumer electronics, such as in 3D scanning, face payment, scene modeling and other fields. 3D imaging technology can not only image the target object, but also obtain the depth information of the target object. Structured light or TOF (Time Of Flight) depth cameras are currently the most widely used 3D imaging devices. [0003] The most important core component in the depth camera is the laser projection module. The laser projection module is used to project speckle patterns into the space to realize the measurement of structured light depth. The laser projection module mainly consists of a VCSEL (Vertical-Cavity Surface-Emitting ...

Claims

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Application Information

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IPC IPC(8): H01S5/40H01S5/42
CPCH01S5/4025H01S5/423
Inventor 陈展耀戴书麟刘风雷
Owner DONGGUAN VISIONX-TECH CO LTD
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