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요약정보
基于改进YOLOv7的输电线路绝缘子设备及其缺陷检测算法
Resource Type
Academic Journal
Authors
王思
;
熊惠敏
;
胡蕾
;
王文彬
Source
江西电力 / Jiangxi Electric Power
. 48(1):1-20
Subject
绝缘子缺陷
目标检测
YOLOv7
卷积注意力机制
感受野增强模块
Language
Chinese
ISSN
1006-348X
Online Access
Find it @ DONGA
초록
针对输电线路无人机巡检中绝缘子设备及缺陷图像检测过程中存在的绝缘子目标尺寸变化大、缺陷目标尺寸小、背景复杂干扰多和难易样本不平衡等问题,提出一种基于改进YOLOv7的绝缘子设备及缺陷检测算法:1)针对绝缘子缺陷目标尺寸小问题,在YOLOv7特征提取网络浅层引入卷积注意力机制,聚焦缺陷;2)针对绝缘子目标尺度变化大问题,在YOLOv7特征提取网络底部引入感受野增强模块,提取不同尺度目标特征;3)针对背景干扰问题,改进YOLOv7特征融合网络,在顶部引入显示视觉中心模块,同时关注全局信息与局部信息;4)针对难易样本不平衡问题,使用Focal-EIoU损失替换YOLOv7坐标回归损失.在合并的绝缘子及其缺陷无人机图像公开数据集上,该算法的多类目标检测精度均值达到了97.36%.
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