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Directional-reflection-ball-based three dimensional calibration apparatus

A directional reflection sphere, three-dimensional calibration technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of less calibration information and complicated operation, and achieve the effect of large amount of information, good structural stability and large size

Inactive Publication Date: 2016-06-08
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of the prior art or cumbersome operation, or less calibration information, and provide a three-dimensional calibration device based on directional reflective balls

Method used

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  • Directional-reflection-ball-based three dimensional calibration apparatus
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  • Directional-reflection-ball-based three dimensional calibration apparatus

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Embodiment Construction

[0023] The following describes a three-dimensional calibration device based on the directional reflecting ball of the present invention with reference to the accompanying drawings and embodiments:

[0024] Such as Figure 1-4 As shown, a three-dimensional calibration device based on a directional reflection ball includes a base frame 1, a target position support structure 2, a reflection ball target position 3, and a directional reflection ball 4. Among them, the basic frame 1 is a cube frame or a hexahedron frame, and three adjacent surfaces of a square or rectangle are used as work installation surfaces. The target support structure 2 is a metal rod-shaped structure, which is installed on the top, front and left sides of the base frame 1. In this embodiment, the target support structure 2 is a rod-like shape with the same side length as the base frame 1. It is installed on the top, front and left sides of the base frame 1, and the two ends and the middle are respectively fixed...

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Abstract

The present invention belongs to the technical field of measurement and testing, in particular relates to a directional-reflection-ball-based three dimensional calibration apparatus, and aims to solve the problems of complicated operation or less calibration information in the prior art. The directional-reflection-ball-based three dimensional calibration apparatus is characterized by comprising base frames (1), target position support structures (2), reflective ball target positions (3) and directional reflection balls (4); wherein the base frames (1) are cube frames or hexahedral frames; the target position support structures (2) are rod-shaped, and are mounted on top parts and front and left side surfaces of the base frames (1), the reflective ball target positions (3) are rod-shaped and made of a metal, and are mounted on nodes of the top parts and front and left side surfaces of the base frames (1) which are provided with the target position support structures (2), the surface of the directional reflection balls (4) is a directional reflective material, and the directional reflection balls (4) are mounted on the reflective ball target positions (3). The directional-reflection-ball-based three dimensional calibration apparatus is light in weight, good in structural stability, large in size and free of exact demands on the installation position of each point, and is easy to implement.

Description

Technical field [0001] The invention belongs to the technical field of metrological testing, and specifically relates to a three-dimensional calibration device based on a directional reflective ball. Background technique [0002] Photogrammetry is a method of obtaining three-dimensional geometric information of objects in the scene based on two or more images taken from different angles. It is simple, reliable, flexible, and has a wide range of applications. It is more and more widely used in the field of measurement and testing, and has been widely used in many fields such as industrial monitoring, object recognition, robot self-guidance, aerospace, aviation and military management. Camera calibration is to determine the camera's position, attribute parameters and establish an imaging model in order to determine the correspondence between an object point in the space coordinate system and its image point on the image plane. It is the basis and premise of photogrammetry. [0003] ...

Claims

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Application Information

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IPC IPC(8): G01C25/00
Inventor 王东伟刘柯孙增玉陈晓晖董利军缪寅宵
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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