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Synthetic Aperture Radar (SAR) images contain a huge amount of information, however, the number of practical use-cases is limited due to the presence of speckle noise in them. In recent years, deep learning based techniques have brought…

Image and Video Processing · Electrical Eng. & Systems 2020-04-24 Shrey Dabhi , Kartavya Soni , Utkarsh Patel , Priyanka Sharma , Manojkumar Parmar

Synthetic Aperture Radar (SAR) object detection faces significant challenges from speckle noise, small target ambiguities, and on-board computational constraints. While existing approaches predominantly focus on SAR-specific architectural…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Xinyi Yu , Zhiwei Lin , Yongtao Wang

The log-ratio (LR) operator has been widely employed to generate the difference image for synthetic aperture radar (SAR) image change detection. However, the difference image generated by this pixel-wise operator can be subject to SAR…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Rongfang Wang , Jia-Wei Chen , Yule Wang , Licheng Jiao , Mi Wang

Synthetic aperture radar (SAR) is a day or night any-weather imaging modality that is an important tool in remote sensing. Most existing SAR image formation methods result in a maximum a posteriori image which approximates the reflectivity…

Applications · Statistics 2020-07-14 Victor Churchill , Anne Gelb

In this paper, we introduce an innovative super resolution approach to emerging modes of near-field synthetic aperture radar (SAR) imaging. Recent research extends convolutional neural network (CNN) architectures from the optical to the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Christos Vasileiou , Josiah W. Smith , Shiva Thiagarajan , Matthew Nigh , Yiorgos Makris , Murat Torlak

Millimeter-wave radars are being increasingly integrated into commercial vehicles to support advanced driver-assistance system features. A key shortcoming for present-day vehicular radar imaging is poor azimuth resolution (for side-looking…

Signal Processing · Electrical Eng. & Systems 2021-06-07 Xiangyu Gao , Sumit Roy , Guanbin Xing

Synthetic aperture radar (SAR) image change detection is a critical yet challenging task in the field of remote sensing image analysis. The task is non-trivial due to the following challenges: Firstly, intrinsic speckle noise of SAR images…

Image and Video Processing · Electrical Eng. & Systems 2021-10-19 Yunhao Gao , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

In recent years, radar technology has seen much improvement, making multistatic Synthetic Aperture Radar (SAR) sensing a realistic possibility, for example in satellite constellations or unmanned aircraft systems. With such systems, there…

Analysis of PDEs · Mathematics 2025-03-17 Daniel Andre , Venky P. Krishnan , Clifford Nolan

We propose a new convolutional neural network (CNN) which performs coarse and fine segmentation for end-to-end synthetic aperture radar (SAR) automatic target recognition (ATR) system. In recent years, many CNNs for SAR ATR using deep…

Computer Vision and Pattern Recognition · Computer Science 2018-05-17 Hidetoshi Furukawa

Despite the advantages of all-weather and all-day high-resolution imaging, synthetic aperture radar (SAR) images are much less viewed and used by general people because human vision is not adapted to microwave scattering phenomenon.…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 Shilei Fu , Feng Xu , Ya-Qiu Jin

Synthetic aperture radar has the ability to work 24/7 and 24/7, and has high application value. Propose a new SAR image matching algorithm based on multi class features, mainly using two different types of features: straight lines and…

Image and Video Processing · Electrical Eng. & Systems 2024-05-07 Mazhi Qiang , Fengming Zhou

Supervised fine-tuning methods (SFT) perform great efficiency on artificial intelligence interpretation in SAR images, leveraging the powerful representation knowledge from pre-training models. Due to the lack of domain-specific pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Xinyang Pu , Feng Xu

Object detection is one of the key target tasks of interest in the context of civil and military applications. In particular, the real-world deployment of target detection methods is pivotal in the decision-making process during military…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Jongoh Jeong , Youngjin Oh , Gyeongrae Nam , Jeongeun Lee , Kuk-Jin Yoon

We study synthetic aperture radar (SAR) imaging and motion estimation of complex scenes consisting of stationary and moving targets. We use the classic SAR setup with a single antenna emitting signals and receiving the echoes from the…

Numerical Analysis · Mathematics 2015-06-11 Liliana Borcea , Thomas Callaghan , George Papanicolaou

Synthetic Aperture Radar (SAR) image captioning enables scene-level semantic understanding and plays a crucial role in applications such as military intelligence and urban planning, but its development is limited by the scarcity of…

Image and Video Processing · Electrical Eng. & Systems 2025-10-21 Jinqi Zhang , Lamei Zhang , Bin Zou

We consider the problem in Synthetic Aperture RADAR (SAR) of identifying and classifying objects located on the ground by means of Convolutional Neural Networks (CNNs). Specifically, we adopt a single scattering approximation to classify…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Romina Gaburro , Patrick Healy , Shraddha Naidu , Clifford Nolan

This paper proposes rollable latent space (RLS) for an azimuth invariant synthetic aperture radar (SAR) target recognition. Scarce labeled data and limited viewing direction are critical issues in SAR target recognition.The RLS is a…

Computer Vision and Pattern Recognition · Computer Science 2018-04-23 Kazutoshi Sagi , Takahiro Toizumi , Yuzo Senda

Multi-view Synthetic Aperture Radar (SAR) imaging can effectively enhance the performance of tasks such as automatic target recognition and image information fusion. Unmanned aerial vehicles (UAVs) have the advantages of flexible deployment…

Systems and Control · Electrical Eng. & Systems 2025-05-23 Deyu Song , Xiangyin Zhang , Zipei Yu , Kaiyu Qin

Synthetic aperture radar automatic target recognition (SAR ATR) has seen significant performance improvements with deep learning. However, the black-box nature of deep SAR ATR introduces low confidence and high risks in decision-critical…

Image and Video Processing · Electrical Eng. & Systems 2025-06-12 Chenwei Wang , Renjie Xu , Congwen Wu , Cunyi Yin , Ziyun Liao , Deqing Mao , Sitong Zhang , Hong Yan

Radio signal recognition is a crucial task in both civilian and military applications, as accurate and timely identification of unknown signals is an essential part of spectrum management and electronic warfare. The majority of research in…

Signal Processing · Electrical Eng. & Systems 2024-05-01 Zi Huang , Akila Pemasiri , Simon Denman , Clinton Fookes , Terrence Martin
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