The feature selection and bias classification of magnetic tile surface defect

Q4 Physics and Astronomy 光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144005.0434

张振尧 Zhang Zhenyao, 白瑞林 Bai Ruilin, 过志强 Guo Zhiqiang, 姜利杰 Jiang Lijie

引用次数: 2

Abstract

In order to improve the accuracy and reduce the prediction time of detection of magnetic tile surface defect,a method of the feature selection and the bias classification is proposed.While offline training,the subgraphs which are generated from the transformation by Gabor filters are fused.Then the texture features of the pictures are extracted.The Relief algorithm is improved to extract the feature subset which have a strong correlation with category and remove redundant features.In order to decrease the miss rate of defective magnetic tile,the bias classification is performed before used LSSVM to predict the categories.It is proved that the proposed method can achieve about 99.09%as the accuracy rate of the defect magnet and the overall accuracy rate is about 96.89%.Compared with the original method,the online prediction only costs 67.4ms which decreased by nearly 1/4.

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磁瓦表面缺陷的特征选择与偏置分类

为了提高磁砖表面缺陷检测的准确率和缩短预测时间，提出了一种特征选择和偏置分类的方法。在离线训练时，对Gabor滤波器变换后生成的子图进行融合。然后提取图像的纹理特征。改进了Relief算法，提取与类别相关性强的特征子集，去除冗余特征。为了降低缺陷磁瓦的缺陷率，在使用LSSVM进行分类预测之前，先进行了偏差分类。实验证明，该方法对缺陷磁体的识别准确率达到99.09%左右，总体准确率达到96.89%左右。与原方法相比，在线预测耗时仅为67.4ms，降低了近1/4。

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".