Depth information acquisition method and device, equipment and medium based on structured light

A depth information and acquisition method technology, which is applied in the field of depth information acquisition based on structured light, can solve the problem that 3D structured light cameras are difficult to meet the needs, and achieve the effect of high-precision and high-efficiency depth information acquisition and easy setting

Active Publication Date: 2021-04-02
GOERTEK OPTICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the requirements for the accuracy and efficiency of depth information acquisition are getting higher and higher, the existing 3D structured light cameras are difficult to meet the demand

Method used

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  • Depth information acquisition method and device, equipment and medium based on structured light
  • Depth information acquisition method and device, equipment and medium based on structured light
  • Depth information acquisition method and device, equipment and medium based on structured light

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Embodiment Construction

[0037] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0038] Such as figure 1 As shown, an embodiment of the present invention provides a method for acquiring depth information based on structured light, including:

[0039] Control the projection module to project coded light to the object to be measured to form a plurality of characteristic blocks arranged in an array on the object to be measured. The characteristic blocks include demarcation lines that divide the characteristic blocks into multiple characteristic regions. Each contains multiple feature points;

[0040] Co...

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Abstract

The invention discloses a depth information acquisition method and device based on structured light, equipment and a medium. One specific embodiment of the method comprises: controlling a projection module to project coded light to a to-be-measured object, so as to enable a plurality of feature blocks arranged in an array to be formed on the to-be-measured object, wherein each feature block comprises a demarcation line for dividing a feature area and a plurality of feature points contained in each feature area; controlling a camera module to acquire a coded light image formed on the to-be-measured object; obtaining pixel coordinates of each feature block based on the demarcation lines, and obtaining feature points contained in each feature block and features of the feature points accordingto the pixel coordinates; and corresponding each feature block in the coded light image to each feature block in the standard image according to the features of the feature points contained in each feature block in the coded light image, and calculating depth information of each position of the object to be measured according to the difference between the pixel coordinates of the corresponding feature blocks in the coded light image and the standard image. According to the embodiment, high-precision and high-efficiency depth information acquisition can be realized.

Description

technical field [0001] The invention relates to the field of projection technology. More specifically, it relates to a structured light-based depth information acquisition method and device, device and medium. Background technique [0002] Depth information refers to information related to the distance between the lens of the camera module in the image acquisition device and the object to be measured. At present, the 3D structured light camera is a mainstream depth camera. The basic principle of obtaining the depth information of the object to be measured is: through the projection module, the light with certain structural characteristics is projected to the object to be measured, and then used to compare with the projection module. The camera module with a fixed position collects the image of the object to be measured with a structured light pattern. When the relative position of the camera module and the projection module is fixed, the degree of distortion of the structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/106H04N13/161H04N13/363
CPCH04N2013/0081H04N13/106H04N13/161H04N13/363
Inventor 宋林东
Owner GOERTEK OPTICAL TECH CO LTD
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