Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion

For target detection in complex scenes of synthetic aperture radar (SAR) images, the false alarms in the land areas are hard to eliminate, especially for the ones near the coastline. Focusing on the problem, an algorithm based on the fusion of multiscale superpixel segmentations is proposed in this...

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Main Authors: Ming Liu, Shichao Chen, Fugang Lu, Mengdao Xing, Jingbiao Wei
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/5/1643
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author Ming Liu
Shichao Chen
Fugang Lu
Mengdao Xing
Jingbiao Wei
author_facet Ming Liu
Shichao Chen
Fugang Lu
Mengdao Xing
Jingbiao Wei
author_sort Ming Liu
collection DOAJ
description For target detection in complex scenes of synthetic aperture radar (SAR) images, the false alarms in the land areas are hard to eliminate, especially for the ones near the coastline. Focusing on the problem, an algorithm based on the fusion of multiscale superpixel segmentations is proposed in this paper. Firstly, the SAR images are partitioned by using different scales of superpixel segmentation. For the superpixels in each scale, the land-sea segmentation is achieved by judging their statistical properties. Then, the land-sea segmentation results obtained in each scale are combined with the result of the constant false alarm rate (CFAR) detector to eliminate the false alarms located on the land areas of the SAR image. In the end, to enhance the robustness of the proposed algorithm, the detection results obtained in different scales are fused together to realize the final target detection. Experimental results on real SAR images have verified the effectiveness of the proposed algorithm.
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spelling doaj.art-c2bbd5318b6142f286e02a5d5af897ea2023-12-11T18:38:15ZengMDPI AGSensors1424-82202021-02-01215164310.3390/s21051643Realizing Target Detection in SAR Images Based on Multiscale Superpixel FusionMing Liu0Shichao Chen1Fugang Lu2Mengdao Xing3Jingbiao Wei4Key Laboratory of Modern Teaching Technology, Ministry of Education, Xi’an 710062, ChinaNo. 203 Research Institute of China Ordnance Industries, Xi’an 710065, ChinaNo. 203 Research Institute of China Ordnance Industries, Xi’an 710065, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaArmy Aviation Research Institute, Beijing 101121, ChinaFor target detection in complex scenes of synthetic aperture radar (SAR) images, the false alarms in the land areas are hard to eliminate, especially for the ones near the coastline. Focusing on the problem, an algorithm based on the fusion of multiscale superpixel segmentations is proposed in this paper. Firstly, the SAR images are partitioned by using different scales of superpixel segmentation. For the superpixels in each scale, the land-sea segmentation is achieved by judging their statistical properties. Then, the land-sea segmentation results obtained in each scale are combined with the result of the constant false alarm rate (CFAR) detector to eliminate the false alarms located on the land areas of the SAR image. In the end, to enhance the robustness of the proposed algorithm, the detection results obtained in different scales are fused together to realize the final target detection. Experimental results on real SAR images have verified the effectiveness of the proposed algorithm.https://www.mdpi.com/1424-8220/21/5/1643synthetic aperture radar (SAR) imagestarget detectionsuperpixel segmentationfusion
spellingShingle Ming Liu
Shichao Chen
Fugang Lu
Mengdao Xing
Jingbiao Wei
Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion
Sensors
synthetic aperture radar (SAR) images
target detection
superpixel segmentation
fusion
title Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion
title_full Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion
title_fullStr Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion
title_full_unstemmed Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion
title_short Realizing Target Detection in SAR Images Based on Multiscale Superpixel Fusion
title_sort realizing target detection in sar images based on multiscale superpixel fusion
topic synthetic aperture radar (SAR) images
target detection
superpixel segmentation
fusion
url https://www.mdpi.com/1424-8220/21/5/1643
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AT mengdaoxing realizingtargetdetectioninsarimagesbasedonmultiscalesuperpixelfusion
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