《计算机应用》唯一官方网站 ›› 2023, Vol. 43 ›› Issue (8): 2593-2601.DOI: 10.11772/j.issn.1001-9081.2022060893

• 多媒体计算与计算机仿真 • 上一篇    

基于特征聚合的铜合金金相图分类识别方法

黄学雨1,2, 贺怀宇1, 林慧敏1, 陈金水3,4()   

  1. 1.江西理工大学 软件工程学院,南昌 330013
    2.江西理工大学 南昌市虚拟数字工厂与文化传播重点实验室,南昌 330013
    3.江西理工大学 材料冶金化学学部,江西 赣州 341000
    4.江西理工大学 先进铜产业研究院,江西 鹰潭 335000
  • 收稿日期:2022-06-20 修回日期:2022-09-05 接受日期:2022-09-09 发布日期:2022-09-22 出版日期:2023-08-10
  • 通讯作者: 陈金水
  • 作者简介:黄学雨(1970—),男,江西赣州人,教授,博士,主要研究方向:企业信息化、智能工厂
    贺怀宇(1996—),男,山西大同人,硕士研究生,主要研究方向:图像识别
    林慧敏(1997—),女,江苏徐州人,硕士研究生,主要研究方向:智能计算、图像处理;
  • 基金资助:
    国家重点研发计划重点专项(2020YFB1713700)

Classification and recognition method of copper alloy metallograph based on feature aggregation

Xueyu HUANG1,2, Huaiyu HE1, Huimin LIN1, Jinshui CHEN3,4()   

  1. 1.School of Software Engineering,Jiangxi University of Science and Technology,Nanchang Jiangxi 330013,China
    2.Nanchang Key laboratory of Virtual Digital Factory and Cultural Communications,Jiangxi University of Science and Technology,Nanchang Jiangxi 330013,China
    3.Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou Jiangxi 341000,China
    4.Jiangxi Advanced Copper Industry Research Institute,Jiangxi University of Science and Technology,Yingtan Jiangxi 335000,China
  • Received:2022-06-20 Revised:2022-09-05 Accepted:2022-09-09 Online:2022-09-22 Published:2023-08-10
  • Contact: Jinshui CHEN
  • About author:HUANG Xueyu, born in 1970, Ph. D., professor. His research interests include enterprise informatization, smart factory.
    HE Huaiyu, born in 1996, M. S. candidate. His research interests include image recognition.
    LIN Huimin, born in 1997, M. S. candidate. Her research interests include intelligent computing, image processing.
  • Supported by:
    Special Program of National Key Research and Development Project(2020YFB1713700)

摘要:

针对铜合金成分检测过程中产生的时滞问题,提出一种基于特征聚合的铜合金金相图分类识别方法。首先,在特征提取阶段,构建灰度共生矩阵(GLCM)和基于卷积注意力模块的残差网络(ResNet)模型分别提取图像的全局与局部特征;其次,在特征聚合阶段,将提取到的特征规范化后进行简单的级联;最后,在分类识别阶段,使用支持向量机(SVM)精确分类。实验结果表明,所提方法的准确率达到了98.963%、宏F1达到了98.996%,优于基于单特征的机器学习方法。可见,不同的方法提取的特征经过聚合后可以更全面地描述铜合金金相图的纹理及边缘信息,所提方法可以通过金相图识别不同铜合金,提升了识别的准确率,且具有良好的鲁棒性。

关键词: 特征聚合, 纹理特征, 残差网络, 灰度共生矩阵, 支持向量机, 铜合金, 金相图

Abstract:

Focusing on the issue of long delay in detection of copper alloy composition, a classification and recognition method of copper alloy metallograph based on feature aggregation was proposed. Firstly,in the feature extraction stage, the Gray-Level Co-occurrence Matrix (GLCM) and the Residual Network (ResNet) model based on convolutional block attention module were constructed to extract the global and local features of the image, respectively. Secondly, in the feature aggregation stage, the extracted features were normalized and then cascaded in a simple way. Finally, in the classification and recognition stage, a Support Vector Machine (SVM) was used for accurate classification. Experimental results show that the proposed method achieves the accuracy of 98.963% and macro-F1 of 98.996%, which are better than those of machine learning methods based on single feature. It can be seen that the features extracted by different methods can describe the texture and edge information of copper alloy metallographs more comprehensively after aggregation, and the proposed method can identify different copper alloys by metallographs, which improves the accuracy of identification and has good robustness.

Key words: feature aggregation, texture feature, Residual Network (ResNet), Gray-Level Co-occurrence Matrix (GLCM), Support Vector Machine (SVM), copper alloy, metallograph

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