基于LDA的类别约束字典学习的织物疵点图像分类方法
Fabric Defect Image Classification Method Based on LDA Category Constraint Dictionary Learning
DOI: 10.12677/SEA.2022.112024, PDF,    国家自然科学基金支持
作者: 王顺政, 陈影柔, 吕文涛*, 王成群:浙江理工大学信息学院,浙江 杭州;郭 庆:浙江省技术创新服务中心,浙江 杭州;陈亮亮:浙江经贸职业技术学院应用工程系,浙江 杭州
关键词: 字典学习疵点图像分类织物疵点特征线性判别分析类别约束Dictionary Learning Defect Image Classification Fabric Defect Characteristics Linear Discriminant Analysis Category Constraints
摘要: 在基于字典学习的织物疵点图像分类的过程中,由于复杂纹理的织物图像背景结构的复杂性、瑕疵信息的形态多样性、瑕疵信息的隐蔽性,导致基于字典学习的织物疵点分类方法存在不能有效提取织物疵点特征问题,为了解决该问题,本文提出一种针对织物疵点特征的基于LDA (线性判别分析)的类别约束字典学习分类方法。首先,重新构建稀疏表示模型,在抑制类内差异和类间模糊的面向判别性特征的字典学习优势上对稀疏系数进行线性判别约束,自适应获取织物图像的有效信息进行分析,使得字典学习中不同织物图像的稀疏系数具有更好的鉴别能力,获得具有织物判别特征的织物字典。然后,利用织物字典对测试样本进行稀疏表示得到的重构误差向量构建分类器进行分类。最后,在阿里云天池布匹疵点检测数据库、实时工厂收集的织物数据集以及本文课题组采集的少量疵点织物图像上验证本文方法的有效性。在不同的织物数据集实验结果表明,本文提取的织物特征字典分类效果更好。
Abstract: In the process of fabric defect image classification based on dictionary learning, due to the complex-ity of the background structure of complex texture fabric image, the morphological diversity of de-fect information and the concealment of defect information, the fabric defect classification method based on dictionary learning cannot effectively extract the characteristics of fabric defects. In order to solve this problem, this paper proposes a category constrained dictionary learning classification method based on LDA (linear discriminant analysis) for the characteristics of fabric defects. Firstly, the sparse representation model is reconstructed. Based on the discrimination oriented dictionary learning advantage of suppressing intra class differences and inter class fuzziness, the sparse coeffi-cients are linearly discriminated and constrained, and the effective information of fabric images is obtained and analyzed adaptively, so that the sparse coefficients of different fabric images in dic-tionary learning have better discrimination ability. A fabric dictionary with fabric discrimination characteristics is obtained. Then, the fabric dictionary is used to sparse representation of the test samples, and the reconstructed error vector is used to construct a classifier for classification. Finally, the effectiveness of this method is verified on Alibaba cloud Tianchi fabric defect detection database, fabric data sets collected by real-time factories and a small number of defective fabric images col-lected by our research group. The experimental results on different fabric data sets show that the fabric feature dictionary extracted in this paper has better classification effect.
文章引用:王顺政, 陈影柔, 吕文涛, 郭庆, 陈亮亮, 王成群. 基于LDA的类别约束字典学习的织物疵点图像分类方法[J]. 软件工程与应用, 2022, 11(2): 223-234. https://doi.org/10.12677/SEA.2022.112024

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