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Underwater three-dimensional scanner and control method thereof

A scanner and three-dimensional technology, applied in the direction of instruments, measuring devices, optical devices, etc., can solve the problems of unclear centerline structured light in the image, failure to consider the contrast of underwater imaging, and inability to meet high-precision modeling, etc., to achieve expansion Scope of application, the effect of improving the accuracy of 3D scanning

Pending Publication Date: 2020-04-28
GUANGZHOU MARINE GEOLOGICAL SURVEY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It does not take into account the problems of low contrast and color deviation in underwater imaging
Therefore, problems such as unclear line structured light in the image will make the existing underwater 3D scanning device unable to meet the needs of high-precision modeling

Method used

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  • Underwater three-dimensional scanner and control method thereof
  • Underwater three-dimensional scanner and control method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, this embodiment provides an underwater three-dimensional scanner, including a host computer, a sealed cabin 1, and a line laser 2 installed inside the sealed cabin 1, an illumination module 7, an imaging module 3, an attitude sensor 8, and a communication module 4; The line laser 2 is used to emit the line structured light required for measurement; the imaging module 3 is used to collect the color image of the target object 6 and the structured light image; the attitude sensor 8 is used to measure the motion speed and attitude of the scanner at the current moment to assist the three-dimensional Reconstruction calculation; the communication module 4 is connected with the line laser 2, the lighting module 7, the imaging module 3, and the attitude sensor 8, so as to transmit image data, attitude data and control signals with the host computer.

[0029] In this embodiment, the lighting module 7 includes a combined array of LEDs, and the LED array ...

Embodiment 2

[0037] This embodiment provides a control method for an underwater three-dimensional scanner, which is based on the underwater three-dimensional scanner provided in Embodiment 1, and includes the following steps:

[0038](1) Use a photoelectric composite cable to connect the underwater 3D scanner to the host computer, and install the underwater 3D scanner on the towing body or underwater vehicle;

[0039] (2) Use the host computer to calibrate the attitude sensor 8 and the imaging module 3, and transport the underwater vehicle to the target area after the calibration is successful;

[0040] (3) The host computer controls the optical focus lens 9 through the communication module 4 to obtain a clear image of the target object 6;

[0041] (4) When the underwater three-dimensional scanner moves above the target object 6, the host computer collects the signals of the monochrome camera 12, the color camera 13, and the attitude sensor 8, and obtains the three-dimensional reconstructi...

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Abstract

The invention discloses an underwater three-dimensional scanner and a control method thereof. The underwater three-dimensional scanner comprises an upper computer, a sealed cabin, a line laser, an illumination module, an imaging module, an attitude sensor and a communication module, wherein the line laser, the illumination module, the imaging module, the attitude sensor, and the communication module installed in the sealed cabin. The line laser, the illumination module, the imaging module, and the attitude sensor are connected with the upper computer through the communication module. The underwater three-dimensional scanner is reasonable in structure and simple in operation, and three-dimensional reconstruction information of the underwater target object can be obtained rapidly.

Description

technical field [0001] Embodiments of the present invention relate to a three-dimensional information scanning device, in particular to an underwater three-dimensional scanner and a control method. Background technique [0002] With the continuous development of marine exploration, engineering has put forward higher requirements for underwater detection, and underwater 3D scanning technology has gained more attention. The underwater three-dimensional scanning technology can accurately measure the three-dimensional structure of the underwater target without capturing it. [0003] The three-dimensional scanning technology of line structured light uses the camera to shoot the laser line irradiated on the target object, and uses the principle of triangulation to realize the three-dimensional reconstruction of the target object. This method has the advantages of rapidity, high precision and simple operation. Its measurement accuracy mainly depends on the motion accuracy of the ...

Claims

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Application Information

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IPC IPC(8): G01B11/25
CPCG01B11/2545
Inventor 胡波陈宗恒陈春亮杨永万启新张杨帆王文鑫胡相胜黄慧宋宏
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY
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