A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images
Due to a wide swath at the order of hundreds of kilometres, interscan banding (ISB) may occur in both ScanSAR and TOPS modes of a synthetic aperture radar (SAR), leading to degraded image quality. In this aticle, the causes of ISB are analyzed and an ISB suppression method based on Retinex theory an...
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IEEE
2025-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
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| Online Access: | https://ieeexplore.ieee.org/document/10891742/ |
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| author | Xinwei An Wei Yang Haijun Shen Hongcheng Zeng Fei Zou Jiadong Deng Can Su Wei Liu |
| author_facet | Xinwei An Wei Yang Haijun Shen Hongcheng Zeng Fei Zou Jiadong Deng Can Su Wei Liu |
| author_sort | Xinwei An |
| collection | DOAJ |
| description | Due to a wide swath at the order of hundreds of kilometres, interscan banding (ISB) may occur in both ScanSAR and TOPS modes of a synthetic aperture radar (SAR), leading to degraded image quality. In this aticle, the causes of ISB are analyzed and an ISB suppression method based on Retinex theory and global weighting is proposed. First, the image with ISB is considered as an image with uneven lighting, and ISB is considered as a lighting component. The ISB component is calculated using a global weighting method. Based on previous studies, the coupling relationship between ISB and scalloping (another issue commonly found in ScanSAR) is identified, and a joint procedure for suppressing ISB and scalloping is established. The proposed method is a post-processing technique that does not require any other additional information, such as the noise equivalent sigma zero. Experimental results based on real SAR images from Gaofen-3 and Sentinel-1 indicate that the proposed method can significantly reduce the effect of ISB and improve the image quality, and it is more efficient and robust compared to existing methods. |
| format | Article |
| id | doaj-art-5f52b057918d483693adfceff8905df2 |
| institution | OA Journals |
| issn | 1939-1404 2151-1535 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj-art-5f52b057918d483693adfceff8905df22025-08-20T02:04:49ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352025-01-01186681669310.1109/JSTARS.2025.354335610891742A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR ImagesXinwei An0https://orcid.org/0009-0006-9551-7484Wei Yang1https://orcid.org/0000-0001-8935-294XHaijun Shen2https://orcid.org/0009-0000-5971-0646Hongcheng Zeng3https://orcid.org/0000-0002-4727-9980Fei Zou4Jiadong Deng5Can Su6https://orcid.org/0009-0002-0398-1185Wei Liu7https://orcid.org/0000-0003-2968-2888School of Electronic and Information Engineering, Beihang University, Beijing, ChinaSchool of Electronic and Information Engineering, Beihang University, Beijing, ChinaShanghai Institute of Satellite Engineering, Shanghai, ChinaSchool of Electronic and Information Engineering, Beihang University, Beijing, ChinaBeijing Institute of Remote Sensing Information, Beijing, ChinaSchool of Electronic and Information Engineering, Beihang University, Beijing, ChinaSchool of Electronic and Information Engineering, Beihang University, Beijing, ChinaDepartment of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong KongDue to a wide swath at the order of hundreds of kilometres, interscan banding (ISB) may occur in both ScanSAR and TOPS modes of a synthetic aperture radar (SAR), leading to degraded image quality. In this aticle, the causes of ISB are analyzed and an ISB suppression method based on Retinex theory and global weighting is proposed. First, the image with ISB is considered as an image with uneven lighting, and ISB is considered as a lighting component. The ISB component is calculated using a global weighting method. Based on previous studies, the coupling relationship between ISB and scalloping (another issue commonly found in ScanSAR) is identified, and a joint procedure for suppressing ISB and scalloping is established. The proposed method is a post-processing technique that does not require any other additional information, such as the noise equivalent sigma zero. Experimental results based on real SAR images from Gaofen-3 and Sentinel-1 indicate that the proposed method can significantly reduce the effect of ISB and improve the image quality, and it is more efficient and robust compared to existing methods.https://ieeexplore.ieee.org/document/10891742/Gaofen-3 (GF-3)interscan banding (ISB) suppressionScanSARSentinel-1TOPSAR |
| spellingShingle | Xinwei An Wei Yang Haijun Shen Hongcheng Zeng Fei Zou Jiadong Deng Can Su Wei Liu A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Gaofen-3 (GF-3) interscan banding (ISB) suppression ScanSAR Sentinel-1 TOPSAR |
| title | A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images |
| title_full | A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images |
| title_fullStr | A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images |
| title_full_unstemmed | A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images |
| title_short | A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images |
| title_sort | joint suppression method of scalloping and inter scan banding for sar images |
| topic | Gaofen-3 (GF-3) interscan banding (ISB) suppression ScanSAR Sentinel-1 TOPSAR |
| url | https://ieeexplore.ieee.org/document/10891742/ |
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