Matrix type visual detection system and method for detecting defect of transparent material

Abstract

The invention discloses a matrix type visual detection system and method for detecting a defect of a transparent material. The visual detection system comprises a supporting device, a detection unit,a conveyance device, a controller and a digital image processing device, wherein the supporting device is used for mounting and fixing the detection unit; the detection unit comprises at least one setof imaging matrixes and at least one set of illumination matrixes; the conveyance device is used for enabling the transparent material and the detection unit to generate relative movement; the controller is connected with the at least one set of imaging matrixes and the at least one set of illumination matrixes, and is used for controlling the time-division switching of the at least one set of illumination matrixes to realize the conversion of illumination modes and the at lease one set of imaging matrixes to carry out continuous scanning when the transparent material is illuminated to obtainthe imaging data of each channel; the digital image processing device is connected with the controller and the at least one set of imaging matrixes in a communication manner, and is used for generating a control instruction to the controller and receiving multi-channel image data generated by the at least one set of imaging matrixes. The capture of the multi-channel image data, in different illumination modes, of a surface and / or internal defect of the transparent material is realized in the manner of the imaging matrixes.

Description

technical field [0001] The invention relates to the field of defect detection of transparent materials, in particular to a matrix visual detection system and method for defect detection of transparent materials. Background technique [0002] Defect detection is very important for quality control of transparent materials. Because, in the production process of transparent materials, various types of defects will occur, such as air bubbles, knot stones, scratches, bumps, concave holes, etc. The causes of different defects are different, and the control standards are different. Therefore, defects should be automatically classified, graded, and product quality grades should be divided during the inspection process. [0003] In various transparent material defect detection systems, one or more imaging devices form a row, adopting a fixed angle, most of which adopt vertical transmission imaging mode, without multi-angle imaging, and cannot break through the limitation of the inher...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a matrix visual inspection system and method for defect detection of transparent materials to solve the problem that existing defect detection is limited by fixed acquisition angles, acquisition frequency leads to limited imaging data, low detection accuracy, and is easily affected. The technical problems of cumbersome detection, limited accuracy and precision of quality classification caused by the interference of dust attached to the surface of transparent materials

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