Magnetic core surface defect detection method based on deep learning

A deep learning and detection method technology, applied in the field of computer vision, can solve the problems of missed detection, many false detections, and low quality of magnetic core defect detection, and achieve the effect of enhancing authenticity, expanding quantity and diversity, and reducing training time

Pending Publication Date: 2022-01-04
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0004] In view of the low quality of existing magnetic core defect detection, the current situation of missed detection and false detection, the present invention proposes a detection method for magnetic core surface defects based on deep learning. The specific technical scheme is as follows:

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  • Magnetic core surface defect detection method based on deep learning
  • Magnetic core surface defect detection method based on deep learning
  • Magnetic core surface defect detection method based on deep learning

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[0052] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become clearer. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0053] The principle of the present invention is as follows: first, the front and back pictures of the magnetic core surface are obtained by an industrial camera and preprocessed to obtain an original data set, and then the magnetic core defect part is extracted from the original data set, and the extracted defect picture is used as a real The data is sent to the improved deep convolutional confrontation generation network for training to generate a new defect image, and then the defect image is used as the target image and the good magnetic core image for image fusion through Poisson fusion to form an enlar...

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Abstract

The invention discloses a magnetic core surface defect detection method based on deep learning, which comprises the following steps of: firstly, acquiring all front and back images of a magnetic core, preprocessing, extracting defect parts, inputting a deep convolutional generative adversarial network improved by a Gaussian mixture model, training an extracted defect set to generate a new defect image, performing poisson fusion on the obtained new image and the intact magnetic core image, making a standard data set, and dividing a training set and a verification set; inputting the training set image into a YOLO-v3 neural network for training, proposing a new training strategy, setting training parameters, and taking the trained network as a magnetic core surface defect detection model so as to identify category information and position information of the magnetic core. The method provided by the invention is faster and more accurate in identification.

Description

technical field [0001] The invention relates to the field of computer vision, in particular to a method for detecting surface defects of magnetic cores based on deep learning. Background technique [0002] With the continuous development of society, the degree of industrial automation is getting higher and higher. However, while improving production efficiency, the problem of product defects still plagues many manufacturers. Moreover, products with quality problems flow into the market, which may cause greater economic losses and safety threats. At present, most manufacturers still use manual quality inspection methods to detect product defects, which greatly wastes human resources, and there are still cases of missed inspections and false inspections. In order to improve the problems existing between human beings and speed up the detection time and detection accuracy, it has become the trend of industrial development to replace manual detection with machine vision, pattern...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06K9/62G06N3/04G06N3/08
CPCG06T7/0002G06T5/002G06N3/08G06T2207/10004G06T2207/20081G06T2207/20084G06T2207/30148G06N3/045G06F18/23213G06F18/25G06F18/214
Inventor 王宪保周宝余皓鑫陈科宇雷雅彧翁扬凯
Owner ZHEJIANG UNIV OF TECH
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