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Electronic cloth defect segmentation method

A technology of electronic cloth and defects, applied in image analysis, image enhancement, instruments, etc., can solve the problems of inaccurate defect positioning and inaccurate segmentation, and achieve the effect of enhancing contrast, accurately segmenting, and suppressing background texture

Pending Publication Date: 2019-07-16
XI'AN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for segmenting electronic cloth defects, which solves the problem of inaccurate positioning and inaccurate segmentation of defects on electronic cloth by detection methods in the prior art

Method used

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] A method for segmenting electronic fabric defects in the present invention, such as figure 1 As shown, the specific steps are as follows:

[0045] Step 1, converting the electronic cloth image to be detected into a grayscale image;

[0046] Step 2, carry out ButterWorth filter processing to gray scale image, obtain the image after filtering;

[0047] The specific process is:

[0048]Step 2.1. Let the grayscale image obtained in step 1 be f(x,y), the size of the grayscale image is M×N, and the grayscale image f(x,y) is transformed by Fourier to obtain the image F(u,v ), the background of the grayscale image f(x, y) is located in the low-frequency component of the frequency domain, and the noise and image details in the grayscale image f(x, y) are located in the high-frequency component of the frequency domain;

[0049] The formula f...

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Abstract

The invention discloses an electronic cloth defect segmentation method. The method comprises the following specific steps: firstly, converting a to-be-detected electronic cloth image into a gray levelimage; secondly, carrying out ButterWorth filtering processing on the gray level image; clustering the filtered images by using a K-means algorithm; and finally, marking the pixel points of the clustered image according to the clustered category, and carrying out binarization processing according to the marking result, so that fabric defects can be segmented. According to the method, the ButterWorth low-pass filter is used for processing the electronic cloth image, detail information of defects can be reserved to the maximum extent while background textures are restrained, and the contrast ratio of the background and defect areas is enhanced. Meanwhile, the filtered images are clustered through the K-means algorithm, finally, the electronic cloth images can be clustered into different classes, then binary segmentation is conducted on the images according to the marking result, and accurate positioning and accurate segmentation of defects of the electronic cloth are achieved.

Description

technical field [0001] The invention belongs to the technical field of fabric defect detection in the textile industry, and in particular relates to a method for segmenting electronic cloth defects. Background technique [0002] Glass fiber electronic cloth, also known as electronic cloth, is an industrial product woven from glass fiber yarn. As a reinforcing material, it is widely used in aerospace, mechanical parts and other fields. In the process of industrial production, defects are an important factor affecting its price and grade evaluation, and it is also a key link in product quality control. At present, most electronic cloth manufacturers at home and abroad mainly rely on manual inspection of electronic cloth defects. Manual detection is greatly affected by subjective factors, such as long-term visual fatigue, working environment, etc. The defect detection rate is only about 70%, and there are problems such as slow detection speed, low accuracy rate, and high misse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G06K9/62G06T7/00
CPCG06T7/11G06T7/0008G06T2207/20024G06T2207/10004G06T2207/30124G06F18/23213
Inventor 景军锋郑敏苏泽斌张缓缓
Owner XI'AN POLYTECHNIC UNIVERSITY
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