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基于Transformer与局部特征融合的轨道紧固件缺陷检测方法

乔彦涵, 陈文, 邹劲柏, 季国一

乔彦涵, 陈文, 邹劲柏, 季国一. 基于Transformer与局部特征融合的轨道紧固件缺陷检测方法[J]. 铁路计算机应用, 2024, 33(4): 18-22. DOI: 10.3969/j.issn.1005-8451.2024.04.04
引用本文: 乔彦涵, 陈文, 邹劲柏, 季国一. 基于Transformer与局部特征融合的轨道紧固件缺陷检测方法[J]. 铁路计算机应用, 2024, 33(4): 18-22. DOI: 10.3969/j.issn.1005-8451.2024.04.04
QIAO Yanhan, CHEN Wen, ZOU Jinbai, JI Guoyi. Defect detection method for track fastener based on Transformer and local feature fusion[J]. Railway Computer Application, 2024, 33(4): 18-22. DOI: 10.3969/j.issn.1005-8451.2024.04.04
Citation: QIAO Yanhan, CHEN Wen, ZOU Jinbai, JI Guoyi. Defect detection method for track fastener based on Transformer and local feature fusion[J]. Railway Computer Application, 2024, 33(4): 18-22. DOI: 10.3969/j.issn.1005-8451.2024.04.04

基于Transformer与局部特征融合的轨道紧固件缺陷检测方法

基金项目: 上海市科委研究课题(21210750300;20090503100)
详细信息
    作者简介:

    乔彦涵,在读硕士研究生

    陈 文,讲师

  • 中图分类号: U215.551 : U216.3 : TP39

Defect detection method for track fastener based on Transformer and local feature fusion

  • 摘要:

    为解决传统人工巡检轨道交通线路存在的效率低和有安全隐患等问题,提出一种基于Transformer与局部特征融合的轨道紧固件缺陷检测方法。构建轨道紧固件缺陷检测模型,将Transformer与局部特征模块融合,整合局部信息,进而提取轨道紧固件缺陷特征;同时,采用数据增强的方法对轨道紧固件缺陷样本进行数据扩增,扩充数据集,验证所建模型的检测效果。实验结果表明,相较于传统方法,文章提出的方法在识别轨道紧固件缺失和损坏两类缺陷方面的精度和平均准确率均有所提升,在不同的轨道线路实验环境下也表现出良好的检测效果。

    Abstract:

    To solve the problems of low efficiency and safety hazards in traditional manual inspection of rail transit lines, this paper proposed a rail fastener defect detection method based on Transformer and local feature fusion. The paper constructed a defect detection model for rail fasteners, integrated Transformer with local feature modules, integrated local information, and extracted defect features of rail fasteners, at the same time, used data augmentation methods to expand the dataset of rail fastener defect samples and verify the detection effect of the constructed model. The experimental results show that compared to traditional methods, the proposed method has improved accuracy and average accuracy in identifying two types of defects, namely missed and damaged track fasteners. It also shows good detection performance in different track experimental environments.

  • 图  1   轨道紧固件缺陷检测模型架构

    图  2   Transformer block具体结构

    图  3   轨道紧固件缺失检测

    图  4   轨道紧固件损坏检测

    表  1   实验环境

    配置 型号
    实验平台 Ubuntu18.04.6LTS
    深度学习框架 PyTorch
    CPU Intel(R) Core(TM) i9-9900KF CPU @ 3.60GHz
    GPU NVIDIA TITAN RTX
    编程语言 Python 3.8.17
    下载: 导出CSV

    表  2   模型参数设置

    参数 设置
    图像大小 384 × 384
    优化算法 Adam
    动量系数 0.9
    学习率 0.0001
    权重衰减系数 0.01
    batch size 32
    注意力头数量 6
    下载: 导出CSV

    表  3   4种方法的检测结果对比

    方法 P R mAP
    ResNet-50 84.8% 90.3% 80.2%
    YOLOv3 87.8% 90.6% 81.9%
    ViT 89.5% 92.3% 84.7%
    本文方法 91.4% 96.9% 86.1%
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-10-26
  • 刊出日期:  2024-04-24

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