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YOLO-Based Defect Detection for Metal Sheets

Created by
  • Haebom

Author

Po-Heng Chou, Chun-Chi Wang, Wei-Lung Mao

YOLO-based deep learning model for automatic defect detection

Outline

This paper proposes an automatic defect detection system utilizing a YOLO-based deep learning model to address the time-consuming and labor-intensive task of industrial manufacturing. Using a metal plate image dataset, we train a YOLO model to detect defects on the surface and holes of the metal plate. To address data shortage, we used ConSinGAN to generate data and augmented it with four YOLO models: YOLOv3, v4, v7, and v9. The proposed YOLOv9 model, combined with ConSinGAN, outperformed other YOLO models (91.3% accuracy, 146 ms detection time). It was integrated into manufacturing hardware and SCADA systems to build a practical automated optical inspection (AOI) system. Furthermore, the proposed automatic defect detection method can be easily applied to other components in industrial manufacturing.

Takeaways, Limitations

Takeaways:
Improving the accuracy and efficiency of metal plate defect detection by combining the YOLO model and ConSinGAN.
Presenting technology applicable to industrial sites by building a practical AOI system.
The scalability of the proposed method is demonstrated, suggesting its applicability to various industrial fields.
Limitations:
The experiment was limited to metal plate image data, and verification of generalization performance for other materials and defect types is required.
When generating data using ConSinGAN, it may not perfectly reflect the diversity of actual defects.
Lack of detailed information on specific hardware and SCADA system implementation.
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