Gear defect detection method and system based on computer vision

A computer vision and defect detection technology, applied in the field of image processing, can solve problems such as low efficiency and precision, achieve high precision, improve production efficiency and production automation, and achieve the effect of great theoretical and practical value

Active Publication Date: 2013-02-06
WEIFANG UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a gear defect detection method based on computer vision, aiming to solve the problem of low efficiency and accuracy of the gear defect detection algorithm provided by the prior art

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  • Gear defect detection method and system based on computer vision
  • Gear defect detection method and system based on computer vision
  • Gear defect detection method and system based on computer vision

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Embodiment Construction

[0091] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0092] figure 1 It shows the implementation flowchart of the computer vision-based gear defect detection method provided by the embodiment of the present invention, and its specific steps are as follows:

[0093] In step S101, the source image of the gear under test collected by the image acquisition card is obtained through the PCI slot.

[0094] In the embodiment of the present invention, an image acquisition card is inserted in the PCI slot of the computer, and the image acquisition card is connected to a camera, and the camera takes pictures of the gear placed on the working platform.

[0095...

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Abstract

The invention relates to the technical field of image processing and provides a gear defect detection method and system based on computer vision. The method comprises the following steps of: acquiring a source image of a detected gear acquired by an image acquisition card through a peripheral component interconnect (PCI) slot; performing preprocessing operation comprising grey level transformation, filtering and noise reduction and threshold segmentation on the source image of the detected gear, and obtaining gear parameters of the detected gear; and performing morphological parameter analysis on the gear parameters of the detected gear, and acquiring an analysis result of the teeth where the defects possibly exist. The gear defect detection method is high in measurement speed and high in precision, the functional requirements of the conventional gear parameter measurement are met, the production efficiency and production automation degree can be greatly improved in the large-scale industrial production process, the measurement precision requirement in the actual production can be met, the measurement time is only several seconds, the requirement on the measurement speed in industrial measurement can be met, and the method has high theoretical and practical values.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a computer vision-based gear defect detection method and system. Background technique [0002] As a typical power transmission device, gears have played a very important role in the course of industrial development, and their quality directly affects the performance of mechanical products. Therefore, in the process of gear manufacturing, product quality must be strictly tested and controlled. Due to the geometric characteristics of the gear itself, the measurement process for defects such as tooth collapse, missing teeth, and tooth skew is complicated. Conventional measuring equipment such as three-coordinate measuring machines and gear comprehensive error checkers have complex structures and are expensive. The requirements are also higher. The development of modern manufacturing puts forward higher requirements for the defect detection of gear products. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01B11/00
Inventor 王文成
Owner WEIFANG UNIVERSITY
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