Surface defect detection of steel based on improved YOLOv7 model

Autor: W. Z. Teng, Y. J. Zhang, H. G. Zhang, D. X. Gao
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Metalurgija, Vol 63, Iss 3-4, Pp 399-402 (2024)
Druh dokumentu: article
ISSN: 0543-5846
1334-2576
Popis: In response to the inevitable surface defects in the manufacturing process of hot-rolled steel, this paper proposes an improved steel surface defect detection model based on YOLOv7. In the Extended Efficient Large Aggregation Network (E-ELAN), the model replaces conventional convolution with Omni-Dimensional Dynamic Convolution (ODConv) to enhance the network’s sensitivity to feature extraction using a combination of various attention mechanisms. Additionally, the detection head in the head section is replaced with an Efficient Decoupled Detection Head, enhancing the model’s capability to classify and locate small defects. The proposed model is tested on the public dataset NEU-DET, achieving a high mAP of 76,5 %. This effectively enhances the model’s ability to detect surface defects in steel while maintaining a fast detection speed.
Databáze: Directory of Open Access Journals