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Steel plate defect detection method and computer readable storage medium

A defect detection and steel plate technology, applied in the direction of calculation, structured data retrieval, image data processing, etc., can solve problems such as the inability to effectively realize online detection of steel plate defects, and achieve the effect of improving accuracy and efficiency

Pending Publication Date: 2021-12-03
武汉钢铁有限公司
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Problems solved by technology

[0004] The embodiment of the present application solves the technical problem that the online detection of steel plate defects cannot be effectively realized in the prior art by providing a steel plate defect detection method and a computer-readable storage medium

Method used

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  • Steel plate defect detection method and computer readable storage medium
  • Steel plate defect detection method and computer readable storage medium
  • Steel plate defect detection method and computer readable storage medium

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Embodiment Construction

[0054] During the process of filing this application, the applicant also found that: At present, there are a variety of non-contact plate shape scanning devices based on laser profilometer technology on the market. The algorithms used by these devices have difficulties in calibration, small measurement ranges, and no shock absorption. Measures, no evaluation plan, etc. For example:

[0055] A global calibration method for a multi-line laser profile scanning sensor, based on a three-dimensional target calibration method, which needs to be calibrated with a target in advance before each measurement, and when the target is placed, it must be ensured that the line laser emitted by each sensor intercepts the corresponding It is difficult to be used in production sites with complex working conditions.

[0056]A single-camera plate shape detection system based on line laser is a system for off-line detection of plate shape based on line laser. Scan the process video of the medium a...

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Abstract

The invention discloses a steel plate defect detection method and a computer readable storage medium. The method comprises the following steps of: acquiring target measurement data of a steel plate; performing Gaussian filtering on the target measurement data to obtain filtering data; performing gradient calibration on the filtering data to obtain calibration data; performing seam calculation and levelness adjustment on the calibration data to obtain levelness data; and performing defect detection and deformation calculation on the levelness data according to preset plate shape defect conditions to obtain defect deformation parameters of the steel plate. According to the invention, the technical problem that steel plate defect online detection cannot be effectively realized in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of steel plate preparation, in particular to a steel plate defect detection method and a computer-readable storage medium. Background technique [0002] The shape of the steel plate is an important assessment index for steel plate products. The quality of the plate shape directly affects the use of customers in the subsequent process. Laser profile measurement technology has the advantages of high detection efficiency, high detection accuracy, dense sampling points, high spatial resolution, non-contact detection, and quantitative detection results. If it can be used in steel plate shape scanning, it may be greatly improved. Improve the accuracy and efficiency of shape detection. [0003] However, it has been found in practice that there is currently no targeted steel plate shape calibration and defect detection or evaluation method, which cannot be effectively used for online defect detection of steel plat...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T5/20G06F16/22
CPCG06T7/0004G06T5/20G06F16/22Y02P90/30
Inventor 周玉骏沈昕怡党宁员胡守天郭小龙沈侃毅何伟
Owner 武汉钢铁有限公司
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