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Machine vision-based glass surface detect detection apparatus and method

A glass surface and defect detection technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of low detection accuracy and no motion control

Inactive Publication Date: 2016-12-21
GUANGDONG POLYTECHNIC NORMAL UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies of the prior art, especially to solve the problem that the image acquisition process of the existing glass surface detection technology has no motion control and the detection accuracy is not high

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  • Machine vision-based glass surface detect detection apparatus and method
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  • Machine vision-based glass surface detect detection apparatus and method

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Embodiment Construction

[0041] The present invention will be described in more detail and complete below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0042] see figure 1 , the glass surface defect detection device based on machine vision of the present invention consists of a detection platform and a detection system, wherein:

[0043] The test bench includes a workbench 10 for clamping the glass to be tested, a pillar 7 supported on the workbench, a mounting plate 8 above the pillar, a motion mechanism arranged on the workbench and a workbench arranged on the workbench. The LED light source 13 and the CCD camera 9 at the bottom of the table, wherein the motion mechanism is made up of a synchronous belt transmission mechanism on both sides of the workbench and a drive motor 4 connected with the synchronous belt; the ...

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Abstract

The invention discloses a machine vision-based glass surface detect detection apparatus and method. The detection apparatus comprises a detection table and a detection system, the detection table comprises a workbench used for clamping glass to be detected, a pillar supported on the workbench, an installing plate above the pillar, and a movement mechanism and a CCD camera which are arranged on the workbench; the detection system comprises an image acquisition module, a movement control module and a host computer; the image acquisition module comprises an image acquisition card and the CDD camera; and the movement control module comprises a movement control card. The above machine vision-based detection scheme carries out vision detection analysis on the defect area of the surface of glass in order to realize high-precision quality detection, so high requirements of the surface detection precision in the glass production are well met.

Description

technical field [0001] The invention relates to a machine vision device, in particular to a glass surface defect detection device and method based on machine vision. Background technique [0002] The traditional glass surface detection mainly adopts manual detection method. Manual inspection not only has a large workload, but is also easily affected by the subjective factors of the inspectors, and it is easy to cause missed inspections of glass surface defects, especially missed inspections of inclusion defects with small deformation and small distortion, which greatly reduces the surface quality of the glass. Therefore, the efficiency and accuracy of detection cannot be guaranteed. At present, the glass defect detection system mainly uses the method of laser detection and Moore interference principle. Laser detection is susceptible to external interference, which affects the detection accuracy. The principle of moiré interference Because the moiré fringes in the grating ...

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Application Information

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IPC IPC(8): G01N21/896
CPCG01N21/896G01N2021/891G01N2021/8925
Inventor 梁鹏郑振兴吴玉婷吴伟文
Owner GUANGDONG POLYTECHNIC NORMAL UNIV
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