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Fine scratch detection method and device, electronic equipment and computer readable storage medium

A detection method and a technology of a detection device, which are applied in computing, image analysis, image enhancement, etc., can solve problems such as missed detection, and achieve the effects of avoiding missed detection, removing interference noise, and accurate identification

Pending Publication Date: 2021-01-22
ZHENGZHOU JINHUI COMP SYST ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It is difficult to detect the fine scratches on the surface of the workpiece. The width of such fine scratches is generally 1-3 pixels, and it is easy to miss detection.

Method used

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  • Fine scratch detection method and device, electronic equipment and computer readable storage medium
  • Fine scratch detection method and device, electronic equipment and computer readable storage medium
  • Fine scratch detection method and device, electronic equipment and computer readable storage medium

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Embodiment Construction

[0048] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, a fine scratch detection method, device, electronic equipment and computer proposed according to the present invention can be described below in conjunction with the accompanying drawings and preferred embodiments. Read the storage medium, its specific implementation, structure, features and effects, as follows in detail. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0049] It should be noted that when an element is referred to as being “disposed” or “connected” to another element, it may be directly on the other element or there may be an intervening element.

[0050] Unless otherwise defined, all technical and scient...

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Abstract

The invention relates to the technical field of industrial product surface scratch detection, in particular to a fine scratch detection method and device, electronic equipment and a computer readablestorage medium, and the fine scratch detection method comprises the following steps: convoluting a Laplace operator and a to-be-detected image, and sharpening and enhancing the to-be-detected image toobtain a to-be-detected enhanced image; carrying out mean filtering on the enhanced to-be-detected image to obtain a background image, and carrying out difference processing on the to-be-detected enhanced image and the background image to obtain a to-be-detected scratch image containing a plurality of scratch line segments; extracting a plurality of scratch line segments in the to-be-detected scratch image according to a straight line extraction algorithm to obtain a scratch line segment set composed of starting point coordinates of the plurality of scratch line segments; and generating a binary image by utilizing the coordinates of a plurality of starting points in the scratch line segment set, and performing Hough transform on the binary image to obtain a scratch line segment. Accordingto the embodiment of the invention, fine scratches can be accurately detected by carrying out scratch detection on an image with a relatively large size, so that the situation of missing detection isavoided.

Description

technical field [0001] The invention relates to the technical field of detection of scratches on the surface of industrial products, in particular to a fine scratch detection method, device, electronic equipment and computer-readable storage medium. Background technique [0002] The level of industrialization is an important indicator to measure the comprehensive strength of a country, and "Made in China" has had a huge impact all over the world, behind which is the increasing level of industrialization in our country. In actual industrial manufacturing, when industrial parts are manufactured, their integrity and functionality often need to be tested, which is particularly important for the quality of industrial products, such as scratches, fine lines, spots, and scratches on the surface of industrial parts Etc., a slight defect may cause great destructive effects in the system. Especially in the field of precision instruments, there is less tolerance for defects. On the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T5/50G06T7/136
CPCG06T7/001G06T5/50G06T7/136G06T2207/20024G06T5/73G06T5/70
Inventor 徐明亮姜晓恒李振宇卫慧张晨民闫杰李丙涛冯春
Owner ZHENGZHOU JINHUI COMP SYST ENG
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