Citation: | LI Guangshuai, SU Juan, LI Yihonget al. An aircraft detection algorithm in SAR image based on improved Faster R-CNN[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(1): 159-168. doi: 10.13700/j.bh.1001-5965.2020.0004(in Chinese) |
In the field of Synthetic Aperture Radar (SAR) image analysis, as an important target, aircraft detection has attracted more and more attention. In order to solve the problem that traditional aircraft detection algorithms need to design hand-crafted features and have poor robustness, this paper proposes an aircraft detection algorithm based on improved Faster R-CNN. In this paper, a SAR Aircraft Dataset (SAD) is made. With Faster R-CNN as the detection framework, the improved k-means algorithm is used to design a more reasonable prior anchor frame to adapt to the characteristic of aircraft size. Based on the idea of inception module, multiple convolution kernels of different sizes are designed to expand the network width and enhance the expression of shallow features. By analyzing the residual network, the feature-map of Layer5 has a larger receptive field, and feature fusion is carried out after upsampling to make use of more context information. Meanwhile, the RoI Align unit proposed in Mask R-CNN algorithm is introduced to eliminate the mapping deviation between the feature-map and the original image. The experimental results show that, compared with the original Faster R-CNN algorithm, the proposed algorithm improves the average detection accuracy by 7.4% on the SAD, while maintaining a fast detection speed.
[1] |
黎薇萍, 李渝, 段崇棣, 等.一种新的鲁棒CFAR检测器设计方法[J].空间电子技术, 2018(3):61-64. doi: 10.3969/j.issn.1674-7135.2018.03.013
LI W P, LI Y, DUAN C L, et al.A new robust CFAR detector design method[J].Space Electronic Technology, 2018(3):61-64(in Chinese). doi: 10.3969/j.issn.1674-7135.2018.03.013
|
[2] |
CUI Y, ZHOU G, YANG J, et al.On the iterative censoring for target detection in SAR images[J].IEEE Geoscience and Remote Sensing Letters, 2011, 8(4):641-645. doi: 10.1109/LGRS.2010.2098434
|
[3] |
BRUSCH S, LEHNER S, FRITZ T, et al.Ship surveillance with TerraSAR-X[J].IEEE Transactions on Geoscience and Remote Sensing, 2011, 49(3):1092-1103. doi: 10.1109/TGRS.2010.2071879
|
[4] |
王彦华, 陈维, 王军福, 等.基于级联CFAR的SAR图像目标快速检测方法[J].现代雷达, 2019, 41(2):21-25. http://www.cnki.com.cn/Article/CJFDTotal-XDLD201902005.htm
WANG Y H, CHEN W, WANG J F, et al.Fast target detection method of SAR image based on cascaded CFAR[J].Modern Radar, 2019, 41(2):21-25(in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-XDLD201902005.htm
|
[5] |
CHEN S, LI X.A new CFAR algorithm based on variable window for ship target detection in SAR images[J].Signal, Image and Video Processing, 2019, 13:779-786. doi: 10.1007/s11760-018-1408-4
|
[6] |
GAO F, XUE X, WANG J, et al.Visual attention model with a novel learning strategy and its application to target detection from SAR images[C]//International Conference on Brain Inspired Cognitive Systems.Berlin: Springer, 2016: 149-160.
|
[7] |
TU S, SU Y.Fast and accurate target detection based on multiscale saliency and active contour model for high-resolution SAR images[J].IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(10):5729-5744. doi: 10.1109/TGRS.2016.2571309
|
[8] |
BENGIO Y, COURVILLE A, VINCENT P.Representation learning:A review and new perspectives[J].IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, 35(8):1798-1828. doi: 10.1109/TPAMI.2013.50
|
[9] |
LIU W, ANGUELOV D, ERHAN D, et al.SSD: Single shot multibox detector[C]//European Conference on Computer Vision.Berlin: Springer, 2016: 21-37.
|
[10] |
REDMON J, DIVVALA S, GIRSHICK R, et al. You only look once: Unified, real-time object detection[C]//IEEE Conference on Computer Vision and Pattern Recognition.Piscataway: IEEE Press, 2016: 779-788.
|
[11] |
REDMON J, FARHADI A.YOLO9000: Better, faster, stronger[C]//IEEE Conference on Computer Vision and Pattern Recognition.Piscataway: IEEE Press, 2017: 6517-6525.
|
[12] |
REDMON J, FARHADI A.YOLOv3: An incremental improvement[EB/OL].(2018-04-08)[2020-01-01].http://arxiv.org/abs/1804.02767.
|
[13] |
GIRSHICK R, DONAHUE J, DARRELL T, et al.Rich feature hierarchies for accurate object detection and semantic segmentation[C]//IEEE Conference on Computer Vision and Pattern Recognition.Piscataway: IEEE Press, 2014: 580-587.
|
[14] |
GIRSHICK R.Fast R-CNN[C]//Proceedings of IEEE International Conference on Computer Vision.Piscataway: IEEE Press, 2015: 1440-1448.
|
[15] |
REN S, HE K M, GIRSHICK R, et al.Faster R-CNN: Towards real-time object detection with region proposal networks[C]//Proceedings of Advances in Neural Information Processing Systems, 2015: 91-99.
|
[16] |
常鹏飞, 段云龙.Faster R-CNN模型在遥感图像飞机目标检测中的应用[J].无线电工程, 2019, 49(10):925-929. doi: 10.3969/j.issn.1003-3106.2019.10.016
CHANG P F, DUAN Y L.Application of Faster R-CNN model in aircraft target detection in remote sensing image[J].Radio Engineering, 2019, 49(10):925-929(in Chinese). doi: 10.3969/j.issn.1003-3106.2019.10.016
|
[17] |
余东行, 郭海涛, 张保明, 等.级联卷积神经网络的遥感影像飞机目标检测[J].测绘学报, 2019, 48(8):1046-1058. http://www.cnki.com.cn/Article/CJFDTotal-CHXB201908012.htm
YU D X, GUO H T, ZHANG B M, et al.Aircraft target detection in remote sensing image using cascaded convolutional neural network[J].Journal of Surveying and Mapping, 2019, 48(8):1046-1058(in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-CHXB201908012.htm
|
[18] |
王思雨, 高鑫, 孙皓, 等.基于卷积神经网络的高分辨率SAR图像飞机目标检测方法[J].雷达学报, 2017, 6(2):195-203. doi: 10.12000/JR17009
WANG S Y, GAO X, SUN H, et al.Method of aircraft target detection in high resolution SAR image based on convolutional neural network[J].Journal of Radar, 2017, 6(2):195-203(in Chinese). doi: 10.12000/JR17009
|
[19] |
LECUN Y, BOTTOU L, BENGIO Y, et al.Gradient-based learning applied to document recognition[J].Proceedings of the IEEE, 1998, 86(11):2278-2324. doi: 10.1109/5.726791
|
[20] |
IOFFE S, SZEGEDY C.Batch normalization: Accelerating deep network training by reducing internal covariate shift[C]//International Conference on Machine Learning, 2015: 448-456.
|
[21] |
HE K M, GKIOXARI G, DOLLAR P, et al.Mask R-CNN[C]//Proceedings of IEEE International Conference on Computer Vision.Piscataway: IEEE Press, 2017: 2980-2988.
|