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Visual sensor of linear structure light scanning measurement

A vision sensor and line structured light technology, applied in the field of vision sensors, can solve the problems of increasing the manufacturing cost and large volume of vision sensors, and achieve the effects of low cost, simple control and processing system, and improved accuracy

Active Publication Date: 2016-02-03
GUANGDONG UNIV OF TECH +1
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AI Technical Summary

Problems solved by technology

The visual sensor with dual-camera structure can better solve the occlusion problem in the measurement process, but it increases the manufacturing cost of the visual sensor, the volume is large, and the scanning measurement process also requires two cameras to collect data synchronously.

Method used

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  • Visual sensor of linear structure light scanning measurement
  • Visual sensor of linear structure light scanning measurement

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Embodiment Construction

[0018] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the patent.

[0019] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0020] The technical solutions in the invention will be clearly and completely described below in conjunction with the description and drawings of the invention. Apparently, the described embodiments are only part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

[0021] Such as figure 1 As shown, it is a schematic structural view of a visual sensor for line structured light scanning measurement in a preferred embodiment of the present invention. The left reflector 5 and the right reflector 7 are arranged on both ...

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Abstract

The invention discloses a visual sensor of linear structure light scanning measurement equipment. The visual sensor concretely comprises a linear laser device, a camera, a left reflecting mirror, a right reflecting mirror, a semitransparent and semi-reflecting mirror and a rear reflecting mirror. Laser rays of the laser device formed on a measured object are reflected by the left reflecting mirror and the semitransparent and semi-reflecting mirror in turn, and finally form a first image about the laser rays on the camera. The laser rays on the measured object are also reflected by the right reflecting mirror and the rear reflecting mirror and then transmit through the semitransparent and semi-reflecting mirror and form a second image about the laser rays on the camera. Three-dimensional coordinates can be completed if the camera can acquire one of the images about the laser lays. The blocking problem of a single-camera visual sensor can be solved so that the effect of a double-camera visual sensor can be achieved, cost is lower and a control processing system is simpler.

Description

technical field [0001] The invention belongs to the technical field of line structured light scanning measurement, and in particular relates to a visual sensor in line structured light scanning measurement equipment. Background technique [0002] The line-structured light scanning measurement device is a laser that reflects a light plane to the measured object, and the light plane intersects with the surface of the measured object to form a laser line. The laser line is a plane curve. The shape of the laser line is related to the geometric shape of the surface of the measured object. The camera collects the image information of the laser line and applies the machine vision related algorithm to obtain the three-dimensional coordinates of the points on the laser line; with a certain The mechanical (scanning) device can obtain the complete three-dimensional information of the measured object. The accuracy of line structured light scanning measurement is moderate, and the struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
Inventor 欧阳祥波李克天李超林
Owner GUANGDONG UNIV OF TECH
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