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Structural light source-and-camera-combined object contour three-dimensional coordinate measuring device

A technology of three-dimensional coordinates and measuring devices, applied in measuring devices, optical devices, instruments, etc., can solve problems such as energy consumption and achieve the effect of rapid industrial three-dimensional measurement

Inactive Publication Date: 2014-04-09
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the relative position of the structured light and the camera changes, the above-mentioned complex calibration needs to be performed again, which will consume a lot of energy

Method used

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  • Structural light source-and-camera-combined object contour three-dimensional coordinate measuring device
  • Structural light source-and-camera-combined object contour three-dimensional coordinate measuring device
  • Structural light source-and-camera-combined object contour three-dimensional coordinate measuring device

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0023] Such as figure 2 As shown, a three-dimensional coordinate measuring device for object outline combined with a structured light source and a camera includes a target, a laser emitter 1, a camera 2, a connector 3, a fixed base 4 and a PC, and the laser emitter 1 and the camera 2 They are respectively installed on the fixed base 4 through the connector 3, and the lines formed by the laser emitted by the laser emitter 1 on the object to be irradiated are covered in the field of view of the camera 2, and the PC is connected with the camera 2, so The above-mentioned connector 3 inc...

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Abstract

The invention relates to a structural light source-and-camera-combined object contour three-dimensional coordinate measuring device. The structural light source-and-camera-combined object contour three-dimensional coordinate measuring device includes a target, a laser transmitter, a camera, connecting pieces, a fixing base and a PC, wherein the laser transmitter and the camera are mounted on the fixing base respectively through the connecting pieces, and the PC is connected with the camera; the laser transmitter transmits laser; the PC controls the camera to acquire images of laser rays on the target at different positions, and calibrates the position relation of a laser plane and the camera, and calculates the three-dimensional coordinates of a measured object surface of a position where laser passes through on a measured object through using the position relation and the image of an intersection curve of the measured object surface and the laser plane. Compared with the prior art, the structural light source-and-camera-combined object contour three-dimensional coordinate measuring device of the invention has the advantages of simple operation, low price and the like.

Description

technical field [0001] The invention relates to a three-dimensional object contour measuring device in the technical field of photogrammetry, in particular to a three-dimensional object contour coordinate measuring device combining a structured light source and a camera. Background technique [0002] The three-dimensional information recording methods of objects mainly include: direct measurement, CT scanning method based on X-ray, method based on computer vision and laser three-dimensional scanner. The method of direct measurement consumes a lot of manpower and a large workload; the method of using CT scanning is expensive, the special instrument is huge in size, not convenient to use, and the scanning takes a long time; the data processing of the laser 3D scanner is complicated, and the equipment cost is high; the method of computer vision Three-dimensional reconstruction of the data is required, and the automatic processing is difficult, and there are problems of inaccura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
Inventor 袁勇艾青王辉王旭东
Owner TONGJI UNIV
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