A bearing defect automatic detection system based on multi-angle light source images

A defect detection and automatic detection technology, which is applied in the direction of optical defect/defect, image analysis, image enhancement, etc., can solve the problems that bearing identification characters cannot be intelligently recognized, defects are difficult to identify and detect, and errors are easy to generate, so as to achieve fine small errors , intelligent detection, fast and efficient processing

Active Publication Date: 2019-05-28
DALIAN UNIV OF TECH
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Problems solved by technology

[0002] The traditional bearing industrial inspection technology mostly performs image detection under the condition of a single light source, some subtle defects are not easy to be identified and detected, and the traditional inspection system cannot intelligently recognize the unique identification characters on the bearing, which is prone to errors and misjudgments
In addition, in the prior art, the defect area is mostly found by the neighborhood pixel comparison method.

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  • A bearing defect automatic detection system based on multi-angle light source images
  • A bearing defect automatic detection system based on multi-angle light source images
  • A bearing defect automatic detection system based on multi-angle light source images

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Embodiment Construction

[0035] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0036] Such as Figure 1 to Figure 1 1 shows an automatic detection system for bearing defects based on multi-angle light source images, including an acquisition unit, a PC-side processing unit, a data analysis unit, an intermediate processing unit and a defect detection unit.

[0037] The acquisition unit first uses the same light source to take pictures of the bearing to be tested from multiple angles to obtain multiple grayscale images of the bearing to be tested, and then turns on multiple light sources at the same time to obtain a single coaxial light source image with clear characters. This system adopts multi-light source lighting conditions when collecting bearing images. The light s...

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Abstract

The invention discloses a bearing defect automatic detection system based on multi-angle light source images. The bearing defect automatic detection system comprises an acquisition unit, a PC end processing unit, a data analysis unit, an intermediate processing unit and a defect detection unit. According to the system, image capturing detection is carried out under the multi-light-source illumination condition, the tiny error can be better detected, the problem of identifying a specific identifier on a bearing is solved, and detection is more intelligent. The system not only comprises softwarein the aspect of bearing image processing, but also independently builds a matched detection processing hardware framework, and simulates the industrial automatic bearing detection process, so that the whole system can smoothly run to achieve the purpose of automatically screening bearings, and meanwhile, the system is more suitable for practical application.

Description

technical field [0001] The invention relates to the technical field of bearing defect detection, in particular to an automatic detection system for bearing defects based on multi-angle light source images. Background technique [0002] The traditional bearing industrial inspection technology mostly performs image detection under the condition of a single light source, some subtle defects are not easy to be identified and detected, and the traditional inspection system cannot intelligently recognize the unique identification characters on the bearing, which is prone to errors and misjudgments. In addition, in the prior art, defect regions are often found by means of a neighborhood pixel comparison method. Contents of the invention [0003] According to the problems existing in the prior art, the present invention discloses an automatic detection system for bearing defects based on multi-angle light source images. The specific solutions include: [0004] A collection unit f...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/136G06T5/30G06N3/04G01N21/95G01N21/88
Inventor 刘斌杨乙乾杨翊铎白暘王尚尚
Owner DALIAN UNIV OF TECH
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