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Polarimetric synthetic aperture radar (PolSAR) image classification has been investigated vigorously in various remote sensing applications. However, it is still a challenging task nowadays. One significant barrier lies in the speckle…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Haixia Bi , Jing Yao , Zhiqiang Wei , Danfeng Hong , Jocelyn Chanussot

Due to the robustness in sensing, radar has been highlighted, overcoming harsh weather conditions such as fog and heavy snow. In this paper, we present a novel radar-only place recognition that measures the similarity score by utilizing…

Robotics · Computer Science 2023-07-11 Hyesu Jang , Minwoo Jung , Ayoung Kim

Synthetic aperture radar (SAR) images are widely used in remote sensing. Interpreting SAR images can be challenging due to their intrinsic speckle noise and grayscale nature. To address this issue, SAR colorization has emerged as a research…

Computer Vision and Pattern Recognition · Computer Science 2023-10-16 Kangqing Shen , Gemine Vivone , Xiaoyuan Yang , Simone Lolli , Michael Schmitt

Existing deep learning-based methods can capture shared features from optical and synthetic aperture radar (SAR) images for spatial alignment. However, optical-SAR registration remains challenging under large geometric deformations, because…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Zhuoyu Cai , Dou Quan , Ning Huyan , Pei He , Shuang Wang , Licheng Jiao

Synthetic Aperture Radar (SAR) utilizes the movement of the radar antenna over a specific area of interest to achieve higher spatial resolution imaging. In this paper, we aim to investigate the realization of SAR imaging for a stationary…

Information Retrieval · Computer Science 2024-09-19 Yifan Sun , Rang Liu , Zhiping Lu , Honghao Luo , Ming Li , Qian Liu

The joint interpretation of very high resolution SAR and optical images in dense urban area are not trivial due to the distinct imaging geometry of the two types of images. Especially, the inevitable layover caused by the side-looking SAR…

Signal Processing · Electrical Eng. & Systems 2018-01-24 Yuanyuan Wang , Xiao Xiang Zhu

Spaceborne synthetic aperture radar can provide meters scale images of the ocean surface roughness day or night in nearly all weather conditions. This makes it a unique asset for many geophysical applications. Sentinel 1 SAR wave mode…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Nicolae-Catalin Ristea , Andrei Anghel , Mihai Datcu , Bertrand Chapron

In this paper we are proposing classification algorithm for multifrequency Polarimetric Synthetic Aperture Radar (PolSAR) image. Using PolSAR decomposition algorithms 33 features are extracted from each frequency band of the given image.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Tushar Gadhiya , Sumanth Tangirala , Anil K. Roy

Extensions of singular spectrum analysis (SSA) for processing of non-rectangular images and time series with gaps are considered. A circular version is suggested, which allows application of the method to the data given on a circle or on a…

Methodology · Statistics 2015-07-13 Alex Shlemov , Nina Golyandina

Synthetic Aperture Radar (SAR) and optical image registration is essential for remote sensing data fusion, with applications in military reconnaissance, environmental monitoring, and disaster management. However, challenges arise from…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Wenfei Zhang , Ruipeng Zhao , Yongxiang Yao , Yi Wan , Peihao Wu , Jiayuan Li , Yansheng Li , Yongjun Zhang

We consider a synthetic aperture imaging configuration, such as synthetic aperture radar (SAR), where we want to first separate reflections from moving targets from those coming from a stationary background, and then to image separately the…

Signal Processing · Electrical Eng. & Systems 2020-01-14 Matan Leibovich , George Papanicolaou , Chrysoula Tsogka

Endeavors have been recently made to transfer knowledge from the labeled pinhole image domain to the unlabeled panoramic image domain via Unsupervised Domain Adaptation (UDA). The aim is to tackle the domain gaps caused by the style…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Xu Zheng , Tianbo Pan , Yunhao Luo , Lin Wang

Ever brighter light sources, fast parallel detectors, and advances in phase retrieval methods, have made ptychography a practical and popular imaging technique. Compared to previous techniques, ptychography provides superior robustness and…

Data Analysis, Statistics and Probability · Physics 2016-07-20 Stefano Marchesini , Hari Krishnan , Benedikt J. Daurer , David A. Shapiro , Talita Perciano , James A. Sethian , Filipe R. N. C. Maia

Camera and Lidar processing have been revolutionized with the rapid development of deep learning model architectures. Automotive radar is one of the crucial elements of automated driver assistance and autonomous driving systems. Radar still…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Farzan Erlik Nowruzi , Dhanvin Kolhatkar , Prince Kapoor , Elnaz Jahani Heravi , Fahed Al Hassanat , Robert Laganiere , Julien Rebut , Waqas Malik

For 3D Synthetic Aperture Radar (SAR) imaging, one typical approach is to achieve the cross-track 1D focusing for each range-azimuth pixel after obtaining a stack of 2D complex-valued images. The cross-track focusing is the main difficulty…

Signal Processing · Electrical Eng. & Systems 2018-08-28 Jingkun Gao , Bin Deng , Yuliang Qin , Hongqiang Wang , Xiang Li

A polarimetric synthetic aperture radar (PolSAR) system, which uses multiple images acquired with different polarizations in both transmission and reception, has the potential to improve the description and interpretation of the observed…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Dehbia Hanis , Luca Pallotta , Augusto Aubry , Aichouche Belhadj-Aissa , Antonio De Maio

The fusion of Synthetic Aperture Radar (SAR) and RGB imagery for land cover classification remains challenging due to modality heterogeneity and underexploited spectral complementarity. Existing approaches often fail to decouple shared…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Huiling Zheng , Xian Zhong , Bin Liu , Yi Xiao , Bihan Wen , Xiaofeng Li

Modern radar systems are designed to have high Doppler tolerance to detect fast-moving targets. This means range and Doppler estimations are inevitably coupled, opening pathways to concealing objects by imprinting artificial Doppler…

Signal Processing · Electrical Eng. & Systems 2023-05-17 V. Kozlov , D. Vovchuk , P. Ginzburg

High-resolution is a key trend in the development of synthetic aperture radar (SAR), which enables the capture of fine details and accurate representation of backscattering properties. However, traditional high-resolution SAR imaging…

Signal Processing · Electrical Eng. & Systems 2023-04-11 Guoru Zhou , Zhongqiu Xu , Yizhe Fan , Zhe Zhang , Xiaolan Qiu , Bingchen Zhang , Kun Fu , Yirong Wu

In this study we investigate the potential for using synthetic aperture radar (SAR) data to provide high resolution defoliation and regrowth mapping of trees in the tundra-forest ecotone. Using aerial photographs, four areas with live…

Image and Video Processing · Electrical Eng. & Systems 2020-07-20 Jørgen A. Agersborg , Stian Normann Anfinsen , Jane Uhd Jepsen