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Electromagnetic positioning splicing apparatus and method for coded light three-dimensional measurement

A technology of electromagnetic positioning and three-dimensional measurement, applied in the field of three-dimensional measurement of coded light, to achieve the effect of reduced volume, low structural strength requirements, and simple structure

Inactive Publication Date: 2014-11-05
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In summary, the existing splicing methods and devices fail to combine the respective advantages of splicing accuracy and splicing speed, and fail to make both of them reach the highest level at the same time

Method used

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  • Electromagnetic positioning splicing apparatus and method for coded light three-dimensional measurement

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Embodiment Construction

[0026] The present invention will be further explained below in conjunction with the drawings and specific embodiments:

[0027] Combine figure 1 The electromagnetic positioning and splicing device for encoding light three-dimensional measurement in this embodiment includes a measuring unit frame 1, a splicing unit frame 2, a circular stage 3, a supporting column 4, and a base 5. The upper surface of the stage 5 has a groove 6 and the bottom surface of the groove 6 has a through hole 7. All the mechanisms in this embodiment are made of non-metallic profiles. During the splicing process, the data cable 8 between the electromagnetic positioning host and the positioning probe passes through the through hole. The azimuth relationship between the static coordinate system and the motion coordinate system is the azimuth relationship between the coded light three-dimensional measurement system and the measured object, which is measured by the electromagnetic positioning host and the po...

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Abstract

The invention provides an electromagnetic positioning splicing apparatus and method for the coded light three-dimensional measurement. The electromagnetic positioning splicing apparatus comprises a measurement unit frame, a splicing unit frame, a round stage, a support pillar and a base station; the upper surface of the round stage is provided with one groove; and the bottom surface of the groove is provided with one through hole. The splicing apparatus disclosed by the invention has a simple structure; the multi-view measurement can be implemented only by the rotation and lifting of the stage; each local part of a measured object can be basically measured. The invention designs the scheme of the movable measured object (a moving coordinate system) and a fixed coded light three-dimensional measurement system (a stationary coordinate system); and the scheme is beneficial for reducing the volume and the complexity of the splicing apparatus and has low requirement on the structural strength. According to the invention, both the rotating splicing and the splicing in the vertical direction (the y direction) are considered and the measured object can be more comprehensively measured.

Description

(1) Technical field [0001] The invention relates to the field of coded light three-dimensional measurement, in particular to a high-precision and fast splicing method of multi-view point cloud data. (2) Background technology [0002] A typical coded light three-dimensional measurement system includes a projector and a camera. The projector projects the coded light on the surface to be measured, and the camera simultaneously shoots an image of the surface to be measured. Combining the image information with the azimuth parameters between the projector and the camera, the shape data of the measured surface can be calculated. [0003] The coded light 3D measurement system can only measure part of the surface of the object at a time. To obtain the complete shape data of the object, it is necessary to measure from different angles (multi-view angles). Since the coordinate systems when measuring at different angles are different, the point cloud data measured at each angle must be coord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24
Inventor 吴海滨于晓洋于双王洋于舒春唐莎猷
Owner HARBIN UNIV OF SCI & TECH
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