基于改进Faster-RCNN的绝缘子检测算法  

Insulator detection algorithm based on improved Faster-RCNN

作　　者：马耀名[1] 张雨 MA Yaoming;ZHANG Yu(Faculty of Electrical and Control Engineering,Liaoning Technical University,Huludao Liaoning 125105,China)

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105

出　　处：《计算机应用》2022年第2期631-637,共7页journal of Computer Applications

摘　　要：为了提高高压输电线路巡检效率,提出改进Faster-RCNN的绝缘子检测算法。首先,在特征提取网络中添加具有注意力机制动态选择机制网络(SKNet),从而使网络着重学习与绝缘子特征相关通道;其次,借助滤波器响应归一化(FRN)层替代原批归一化(BN)层,以避免模型陷入梯度饱和区域;最后,使用距离交并比(DIoU)代替原交并比(IoU)方法,以精确表达特征候选区域框位置。对开源航拍绝缘子数据集进行平移、旋转、Cutout和CutMix等操作来进行增强,将数据集扩充到3000张并从中随机选择2500张作为训练集,其余500张作为测试集。相较于原Faster-RCNN算法,所提算法平均准确率提高了3.46个百分点,平均召回率提高了2.76个百分点。实验结果表明:所提算法具有较高检测精度和稳定性,可满足电力巡线绝缘子检测应用场景需求。In order to increase inspection efficiency of high-voltage transmission lines,an insulator detection algorithm based on improved Faster Region-based Convolutional Neural Network(Faster-RCNN)was proposed.Firstly,the Selective Kernel Neural Network(SKNet)with attention mechanism was added to feature extraction network to make the network focus on learning the insulator features related channels.Secondly,the Filter Response Normalization(FRN)layer was used to replace the original Batch Normalization(BN)layer to avoid the model falling into the gradient saturation region.Finally,the Distance Intersection Over Union(DIoU)was used to replace the original Intersection Over Union(IoU)to accurately express the positions of the feature candidate region boxs.The open source aerial insulator dataset was enhanced by the operations such as translation,rotation,Cutout and CutMix.The dataset was expanded to 3000 images,and 2500 images of them were randomly selected as the training set,and the remaining 500 images were selected as the test set.Compared with the original Faster-RCNN algorithm,the average accuracy of the proposed algorithm is improved by 3.46 percentage points,and the average recall is improved by 2.76 percentage points.Experimental results show that the proposed algorithm has high detection accuracy and stability,and can meet the requirements of the application scenarios of power line insulator detection.

关 键 词：绝缘子检测 Faster-RCNN 动态选择机制网络 距离交并比 滤波器响应归一化 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]