System for rapidly determining accurate imaging scheme for belt material defect detection

A technology of defect detection and calibration system, which is applied in the direction of optical test defects/defects, can solve complex test work and other problems, and achieve the effect of improving test efficiency, accurate and scientific design scheme, and high degree of automation

Inactive Publication Date: 2017-07-18
BAOSTEEL ZHANJIANG IRON & STEEL CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that complex testing work is required before surface detection in the prior art, the purpose of the present invention is to provide a system for quickly determining an accurate imaging solution for strip defect detection

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  • System for rapidly determining accurate imaging scheme for belt material defect detection
  • System for rapidly determining accurate imaging scheme for belt material defect detection
  • System for rapidly determining accurate imaging scheme for belt material defect detection

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] refer to figure 1 , the invention discloses a system for quickly determining an accurate imaging scheme for strip defect detection, which mainly includes four main modules, namely, an accurate calculation resolution test module, a composite imaging system module, a calibration system module, and imaging parameter calculation and scheme Determine the module.

[0021] The above four modules are composed of multiple components, including:

[0022] Safety fence sensor 1, X-axis adjustable bracket 2, 3D camera fine-tuning mechanism 3, high-precision 3D camera 4, sample to be tested 5, movable stage with fixture and ruler 6, safety fence 7, Y with ruler Axis adjustable camera bracket 8, mobile stage guide rail 9, Y-axis adjustable light source bracket with scale 10, light source adjuster that can adjust distance and small a...

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Abstract

The invention discloses a system for rapidly determining an accurate imaging scheme for belt material defect detection. The system comprises an accurate calculation resolution testing module, a compound imaging system module, a calibration system module and an image parameter calculation and scheme determination module, wherein the accurate calculation resolution testing module is used for measuring a defect size of a tested sample and determining an imaging resolution; the calibration system module is used for executing rapid focusing before imaging, positioning a focusing position, calibrating a light source of a camera and determining an imaging distance of the camera; the compound imaging system module is used for imaging defects of a motion sample and finishing imaging at a light field, a dark field, a transition field and sidelight according to different light source angles; and the image parameter calculation and scheme determination module is used for estimating and calculating the image resolution, selecting the model of the camera, calculating the imaging distance according to the imaging resolution and the imaging angles, carrying out calibration calculation and image processing, and outputting the final imaging scheme. The system has the beneficial effects that the automation degree is high, the calculation is accurate, rapid calibration and surveying are realized, and the testing efficiency is greatly improved.

Description

technical field [0001] The invention relates to imaging detection, more specifically, to a system for quickly determining and precise imaging scheme for strip defect detection. Background technique [0002] At present, the surface inspection system based on machine vision has been successfully applied in various industries. As one of the strip surface defect detection methods, the machine vision detection system has an irreplaceable role. Due to the ever-changing objects to be detected, even the same unit has different defects for different time periods. Therefore, before adding a surface inspection system to the unit, it is necessary to carry out comprehensive, large, and tedious testing work to determine the imaging plan. Ensure that defects of interest can be detected at a later date. At the same time, for the existing detection system, for the unit to change the material and add defects, the previous imaging scheme often cannot fully meet the requirements of the site. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
CPCG01N21/88
Inventor 梁爽何永辉杨水山石桂芬宗德祥彭铁根
Owner BAOSTEEL ZHANJIANG IRON & STEEL CO LTD
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