Single Shot Anchor Refinement Network for Oriented Object Detection in Optical Remote Sensing Imagery

doi:10.1109/access.2019.2924643

	Single Shot Anchor Refinement Network for Oriented Object Detection in Optical Remote Sensing Imagery
	S.Z.Bao; X.Zhong; R.F.Zhu; X.N.Zhang; Z.Q.Li; M.Y.Li
	2019
发表期刊	Ieee Access
ISSN	2169-3536
卷号	7 页码:87150-87161
摘要	Object detection is a challenging task in the field of remote sensing applications due to the complex backgrounds and uncertain orientation of targets. Compared with the horizontal bounding box, the oriented bounding box can provide orientation information while retaining the true size. Most existing oriented object detection methods are based on Faster-RCNN and the other one-stage methods that can achieve real-time speed but have shortcomings in localization and detection accuracy. To further enhance the performance of one-stage methods, we propose an oriented object detection framework that is based on the single shot detector, namely, single shot anchor refinement network (S(2)ARN). The S(2)ARN obtains the accurate detection results by performing two consecutive regressions. More precisely, the multilevel features of the backbone are used to regress the coordinate offsets between the predefined rotated anchors and the ground-truth boxes to generate the refined anchors. The classification and regression subnetworks assigned to the output features are used to perform the second regression to determine the class labels and further adjust the location of the refined anchors. In addition, receptive field amplification modules (RFAMs) are inserted to enlarge the receptive field and extract more discriminative features. Furthermore, in the anchor matching step, angle-related Intersection over Union (ArIoU) is used to calculate the Intersection over Union (IoU) score instead of the traditional method. Benefiting from the multiple regressions and the insensitivity of the ArIoU score to the angle deviation, the angle sampling interval of the rotated anchor can be reduced. The experimental results for the two public datasets, HRSC2016 and UCAS-AOD, demonstrate the effectiveness of the proposed network.
关键词	Convolutional neural network (CNN),remote sensing,oriented object,detection,anchor refinement,ship detection
DOI	10.1109/access.2019.2924643
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63477
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	S.Z.Bao,X.Zhong,R.F.Zhu,et al. Single Shot Anchor Refinement Network for Oriented Object Detection in Optical Remote Sensing Imagery[J]. Ieee Access,2019,7:87150-87161.
APA	S.Z.Bao,X.Zhong,R.F.Zhu,X.N.Zhang,Z.Q.Li,&M.Y.Li.(2019).Single Shot Anchor Refinement Network for Oriented Object Detection in Optical Remote Sensing Imagery.Ieee Access,7,87150-87161.
MLA	S.Z.Bao,et al."Single Shot Anchor Refinement Network for Oriented Object Detection in Optical Remote Sensing Imagery".Ieee Access 7(2019):87150-87161.

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