Article Details

Title · Authors · Abstract · Keywords · DOI · References

Research on Multi-scale Feature Fusion YOLO11 Algorithm for Metal Surface Defect Classification

QU Jiang, SUN Cuigai

(Suzhou College of Information Technology, Suzhou 215200, China)

Section:Computer Technology · Vol. 2026, Issue 19 · Pages:94-100 · 2096-4706(2026)19-0094-07 · CLC number:TP391.4 · Document code:A · DOI:10.19850/j.cnki.2096-4706.2026.19.018

Abstract

To address the problems that traditional steel surface defect detection relies on manual inspection, suffers from low efficiency, and is susceptible to subjective factors, this paper proposes a steel surface defect classification algorithm based on an improved YOLO11. The algorithm achieves precise classification of six defect types including cracks, inclusions, patches, pitting, oxidation, and scratches. Experimental results demonstrate that the improved YOLO11 classification algorithm excels in detecting these six types of defect. After 30 epochs of training, the model converges stably, with validation loss maintained below 0.05. The overall classification accuracy reaches 99.33%, and the recognition accuracy for the five defect types other than inclusions exceeds 99%. This provides a reliable solution for the automated detection of steel surface defects in industrial scenarios.

Keywords

multi-scale feature fusion; YOLO11; metal sheet; defect classification

References

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About the authors

Qu Jiang (March 1983-), female, Han ethnicity, from Yangzhong, Jiangsu, lecturer, master's student, research interests include computer science and technology and artificial intelligence.