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Improved YOLOv8n-based bridge crack detection algorithm under complex background conditions
DOI:10.1038/s41598-025-97842-2.png)
摘要
En 中文
基于深度学习的图像处理方法常用于桥梁裂缝检测。针对检测过程中因光照、污渍和密集裂缝导致的漏检和误检问题,本文提出了一种基于改进YOLOv8n模型的桥梁裂缝检测算法。首先,通过在Backbone和Neck中引入全局注意力机制来增强模型的特征提取能力,以获取额外的裂缝表征信息;并通过Gam-Concat优化原始特征融合模型,增强特征融合效果。随后,在FPN-PAN结构中,用DySample替换原始上采样模块,促进高低分辨率特征信息的完全融合,提升对不同尺度裂缝的检测能力。最后,在Head中添加MPDIoU以优化边界框函数损失,增强模型对密集裂缝重叠度的评估能力,更好地反映裂缝间的空间关系。在消融实验和对比实验中,改进模型相较于原始模型,mAP@0.5、mAP@0.5:0.95、精确率和召回率分别提升了3.02%、3.39%、2.26%和0.81%,且检测精度显著高于其他对比模型,具有在桥梁检测项目中的实际应用价值。
Keyword:
YOLOv8n
Bridge crack detection
Complex background conditions
Deep learning
期刊
IF:
3.9
论文数:
28.3W
被引数:
83.5W
机构
暂无机构信息
引用论文
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