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Dead-corner-free marking block for machine vision three-dimensional reconstruction

A technology of three-dimensional reconstruction and machine vision, which is applied in the direction of instruments, measuring instruments, optical devices, etc., to achieve the effects of easy use, prevention of unrecognizable or inaccurate recognition, and simple structure

Pending Publication Date: 2020-09-18
北京大华旺达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a marker block without dead angle for three-dimensional reconstruction of machine vision, so that it can solve the problem of visual occlusion and accurately identify the position and posture of the marker point, thereby overcoming the shortcomings of the existing marker points

Method used

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  • Dead-corner-free marking block for machine vision three-dimensional reconstruction
  • Dead-corner-free marking block for machine vision three-dimensional reconstruction
  • Dead-corner-free marking block for machine vision three-dimensional reconstruction

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Embodiment Construction

[0026] see Figure 1 to Figure 4 , the present invention provides a marker block without dead ends for three-dimensional reconstruction of machine vision. Two or more geometric bodies 1 are fixedly connected by connecting rods 2. Except for the surface connected to the connecting rod 2, other surfaces of the geometric bodies 1 Each is provided with an X corner mark 3, so that at least three X corner points 301 can be observed from any angle.

[0027] Figure 1 to Figure 3 Shown is the first embodiment of the present invention. In this embodiment, the geometric body 1 is a cube, and the number of the cubes is four, which are fixedly connected by connecting rods 2 . The connecting rod 2 is an integral structure, including a main rod 201, a first support rod 202 and a second support rod 203. The main rod 201 is arranged horizontally, and one end of the main rod 201 extends horizontally to both sides of the first support rod. 202, the first pole 202 and the main pole 202 are per...

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Abstract

The invention discloses a dead-corner -free marking block for machine vision three-dimensional reconstruction. Two or more geometries are fixedly connected through a connecting rod, and except the surface, connected with the connecting rod, of each geometry, X angular point marks can be arranged on the other surfaces of each geometry, so that at least three X angular points can be observed from any angle. The problem that traditional mark points cannot be recognized or are inaccurate in recognition due to visual occlusion and poor angles is effectively solved, and the marking block is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to the technical field of pose recognition of machine vision marker points, in particular to a marker block without dead ends for three-dimensional reconstruction of machine vision. Background technique [0002] An important function of machine vision is to identify the location of spatial markers. Commonly used marking points are generally composed of specific graphics on a plane, such as barcodes, two-dimensional codes, circular points and X corner points. The plane where the marker is located has a significant and direct relationship with the position and angle of the camera on the recognition of the marker and the accuracy of position reconstruction. As we all know, the occlusion problem is a very difficult problem in binocular vision tracking in machine vision. In the process of using binocular vision, the recognition effect is often poor or even fails due to problems such as occlusion and inappropriate angles. Users often h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/08G01C11/00G01B11/00
CPCG01C15/08G01C11/00G01B11/00
Inventor 胡宁张小娟
Owner 北京大华旺达科技有限公司
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