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

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

Inactive Publication Date: 2012-12-12
HARBIN UNIV OF SCI & TECH
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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] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:

[0027] combine figure 1 , The electromagnetic positioning splicing device for coded light three-dimensional measurement in this embodiment includes a measuring unit frame 1 , a splicing unit frame 2 , a circular stage 3 , a support 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 mechanisms of the present embodiment are made of non-metal profile. 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 stationary coordinate system and the moving coordinate system is the azimuth relationship between the coded light three-dimensional measurement system and the measured object, which is jointly measured by the electromagnetic position...

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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 for multi-view point cloud data. (2) Background technology [0002] A typical coded light 3D measurement system includes a projector and a camera. The projector projects coded light onto the surface to be measured, and the camera captures images of the surface to be measured simultaneously. The shape data of the measured surface can be calculated by combining the image information with the orientation parameters between the projector and the camera. [0003] The coded light three-dimensional 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 needs to be measured from different angles (multiple viewing angles). Since the coordinate systems are different when measuring at different angles, the point cloud data measured at each angl...

Claims

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Application Information

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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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