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A Weld Surface Defect Recognition Method Based on Improved MobileNetV2 Algorithm

Author

Listed:
  • Kai Ding

    (Institute of Smart Manufacturing Systems, Chang’an University, Xi’an 710064, China)

  • Zhangqi Niu

    (Institute of Smart Manufacturing Systems, Chang’an University, Xi’an 710064, China)

  • Jizhuang Hui

    (Institute of Smart Manufacturing Systems, Chang’an University, Xi’an 710064, China)

  • Xueliang Zhou

    (School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan 442002, China)

  • Felix T. S. Chan

    (Department of Decision Sciences, Macau University of Science and Technology, Macao SAR, China)

Abstract

Traditional welding quality inspection methods for pipelines and pressure vessels are time-consuming, labor-intensive, and suffer from false and missed inspection problems. With the development of smart manufacturing, there is a need for fast and accurate in-situ inspection of welding quality. Therefore, detection models with higher accuracy and lower computational complexity are required for technical support. Based on that, an in-situ weld surface defect recognition method is proposed in this paper based on an improved lightweight MobileNetV2 algorithm. It builds a defect classification model with MobileNetV2 as the backbone of the network, embeds a Convolutional Block Attention Module (CBAM) to refine the image feature information, and reduces the network width factor to cut down the number of model parameters and computational complexity. The experimental results show that the proposed weld surface defect recognition method has advantages in both recognition accuracy and computational efficiency. In summary, the method in this paper overcomes the limitations of traditional methods and achieves the goal of reducing labor intensity, saving time, and improving accuracy. It meets the actual needs of in-situ weld surface defect recognition for pipelines, pressure vessels, and other industrial complex products.

Suggested Citation

  • Kai Ding & Zhangqi Niu & Jizhuang Hui & Xueliang Zhou & Felix T. S. Chan, 2022. "A Weld Surface Defect Recognition Method Based on Improved MobileNetV2 Algorithm," Mathematics, MDPI, vol. 10(19), pages 1-18, October.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:19:p:3678-:d:936037
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    References listed on IDEAS

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    1. Mustaqeem & Soonil Kwon, 2020. "CLSTM: Deep Feature-Based Speech Emotion Recognition Using the Hierarchical ConvLSTM Network," Mathematics, MDPI, vol. 8(12), pages 1-19, November.
    2. Mohammad Khishe & Fabio Caraffini & Stefan Kuhn, 2021. "Evolving Deep Learning Convolutional Neural Networks for Early COVID-19 Detection in Chest X-ray Images," Mathematics, MDPI, vol. 9(9), pages 1-18, April.
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