Multifunctional calibration plate device for underwater calibration

A calibration board and multi-functional technology, applied in image data processing, instruments, calculations, etc., can solve the problems of cumbersome calibration pictures and single purpose of calibration pictures, and achieve the effect of reducing the cumbersomeness and perfectly matching the calibration

Pending Publication Date: 2021-01-12
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-functional calibration plate device for underwater calibration to solve the cumbersome problem of traditional manual acquisition of calibration pictures and the single purpose of calibration pictures

Method used

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  • Multifunctional calibration plate device for underwater calibration
  • Multifunctional calibration plate device for underwater calibration
  • Multifunctional calibration plate device for underwater calibration

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] figure 1 is a schematic diagram of the overall structure of the multifunctional calibration device for underwater calibration, figure 2 is the top view of the multifunctional calibration device for underwater calibration, image 3 It is the front view of the multifunctional calibration device for underwater calibration. The invention proposes a multifunctional calibration device for underwater calibration, including a support system, a calibration board system, a single-eye and binocular camera system, and a real-time measurement system.

[0029] The bracket system includes a chassis 1, a ball seat 2, a sphere 3, a single and binocular ruler column 10, and a single and binocular square moving rod 8;

[0030] The calibration board system includes a calibration board 5, a calibration board waterproof case 4, and a bead 17;

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Abstract

The invention provides a multifunctional calibration plate device for underwater calibration, which comprises a bracket system, a calibration plate system, a monocular and binocular camera system anda real-time measurement system; the bracket system supports the calibration plate system, the monocular and binocular camera system and the real-time measurement system; the support system comprises achassis, a ball seat, a ball body, a monocular and binocular ruler column and a monocular and binocular square moving rod. The calibration plate system comprises a calibration plate, a calibration plate waterproof shell and a pressing strip; the monocular and binocular camera system comprises a monocular and binocular camera, a camera clamping plate and a camera waterproof shell; the real-time measuring system comprises a measuring tape sleeve, a measuring tape and a soft clamping plate with a hook. According to the invention, coexistence of the calibration board system and the real-time measurement system is achieved, acquisition of a distance measurement experiment picture can be carried out while a calibration picture is shot, and an effect that one picture has multiple purposes is achieved; omnibearing rotating movement of the calibration plate at the inclination angle of -60-60 degrees is achieved, and the requirement that multiple pictures with different postures are needed in the calibration process is met.

Description

technical field [0001] The invention relates to a multifunctional calibration board device, in particular to a multifunctional calibration board device for underwater calibration, and belongs to the technical field of underwater single and binocular camera calibration. Background technique [0002] The complexity of the underwater environment and the difficulty of work restrict the freedom of human activities underwater, which determines the way to explore using underwater detection equipment. Relying on optical detection, that is, camera imaging, is an important way to study the underwater environment. method. Before using the camera to work, it is necessary to calibrate the camera to establish a connection between the two-dimensional image of the camera and the three-dimensional scene. Whether it is in image measurement or machine vision applications, the calibration of camera parameters is a very critical link. The quality of the calibration results It directly determine...

Claims

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Application Information

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IPC IPC(8): G06T7/80G01D18/00
CPCG06T7/80G01D18/00Y02E30/30
Inventor 李冰任彦光李硕峰李宁朱宁刘斌
Owner HARBIN ENG UNIV
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