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The limitations of existing Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR) methods lie in their confinement by the closed-environment assumption, hindering their effective and robust handling of unknown target categories…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Xiayang Xiao , Zhuoxuan Li , Ruyi Zhang , Jiacheng Chen , Haipeng Wang

Remote sensing visual grounding (RSVG) aims to localize specific targets in remote sensing images using natural language expressions. However, existing methods are restricted to single-sensor domains, i.e., either optical or synthetic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Xiaoyu Tang , Jun Dong , Jintao Cheng , Rui Fan

Oriented object detection in remote sensing images is a challenging task due to objects being distributed in multi-orientation. Recently, end-to-end transformer-based methods have achieved success by eliminating the need for post-processing…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Jiaqi Zhao , Zeyu Ding , Yong Zhou , Hancheng Zhu , Wen-Liang Du , Rui Yao , Abdulmotaleb El Saddik

Oriented object detection is a challenging task in aerial images since the objects in aerial images are displayed in arbitrary directions and are frequently densely packed. The mainstream detectors describe rotating objects using a…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Xinyi Yu , Mi Lin , Jiangping Lu , Linlin Ou

Forward modeling of wave scattering and radar imaging mechanisms is the key to information extraction from synthetic aperture radar (SAR) images. Like inverse graphics in optical domain, an inherently-integrated forward-inverse approach…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Shilei Fu , Feng Xu

Remote Sensing Visual Question Answering (RSVQA) is a task that extracts information from satellite images to answer questions in natural language, aiding image interpretation. While several methods exist for optical images with varying…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Lucrezia Tosato , Flora Weissgerber , Laurent Wendling , Sylvain Lobry

Oriented object detection in aerial images poses a significant challenge due to their varying sizes and orientations. Current state-of-the-art detectors typically rely on either two-stage or one-stage approaches, often employing…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Phuc D. A. Nguyen

In this paper, we develop a novel super-resolution algorithm for near-field synthetic-aperture radar (SAR) under irregular scanning geometries. As fifth-generation (5G) millimeter-wave (mmWave) devices are becoming increasingly affordable…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Josiah Smith , Yusef Alimam , Geetika Vedula , Murat Torlak

Anomaly detection is a key research challenge in computer vision and machine learning with applications in many fields from quality control to radar imaging. In radar imaging, specifically synthetic aperture radar (SAR), anomaly detection…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Lucian Chauvin , Somil Gupta , Angelina Ibarra , Joshua Peeples

Along with the improvement of radar technologies, Automatic Target Recognition (ATR) using Synthetic Aperture Radar (SAR) and Inverse SAR (ISAR) has come to be an active research area. SAR/ISAR are radar techniques to generate a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-13 Carlos Pena-Caballero , Elifaleth Cantu , Jesus Rodriguez , Adolfo Gonzales , Osvaldo Castellanos , Angel Cantu , Megan Strait , Jae Son , Dongchul Kim

Generative models have demonstrated significant success in anomaly detection and segmentation over the past decade. Recently, diffusion models have emerged as a powerful alternative, outperforming previous approaches such as GANs and VAEs.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Mehrdad Moradi , Marco Grasso , Bianca Maria Colosimo , Kamran Paynabar

Autonomous radar has been an integral part of advanced driver assistance systems due to its robustness to adverse weather and various lighting conditions. Conventional automotive radars use digital signal processing (DSP) algorithms to…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Xu Dong , Pengluo Wang , Pengyue Zhang , Langechuan Liu

Single-image super-resolution (SISR) networks trained with perceptual and adversarial losses provide high-contrast outputs compared to those of networks trained with distortion-oriented losses, such as L1 or L2. However, it has been shown…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Seung Ho Park , Young Su Moon , Nam Ik Cho

Rotation detection is a challenging task due to the difficulties of locating the multi-angle objects and separating them effectively from the background. Though considerable progress has been made, for practical settings, there still exist…

Computer Vision and Pattern Recognition · Computer Science 2020-12-09 Xue Yang , Junchi Yan , Ziming Feng , Tao He

Recent real-time detection transformers have gained popularity due to their simplicity and efficiency. However, these detectors do not explicitly model object rotation, especially in remote sensing imagery where objects appear at arbitrary…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Zeyu Ding , Yong Zhou , Jiaqi Zhao , Wen-Liang Du , Xixi Li , Rui Yao , Abdulmotaleb El Saddik

Craters are one of the most studied planetary features used for different scientific analyses, such as estimation of surface age and surface processes. Satellite images utilized for crater detection often have low resolution (LR) due to…

Image and Video Processing · Electrical Eng. & Systems 2024-02-08 Atal Tewari , Nitin Khanna

Single-source remote sensing object detection using optical or SAR images struggles in complex environments. Optical images offer rich textural details but are often affected by low-light, cloud-obscured, or low-resolution conditions,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Chao Wang , Wei Lu , Xiang Li , Jian Yang , Lei Luo

Automatic multi-class object detection in remote sensing images in unconstrained scenarios is of high interest for several applications including traffic monitoring and disaster management. The huge variation in object scale, orientation,…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Seyed Majid Azimi , Eleonora Vig , Reza Bahmanyar , Marco Körner , Peter Reinartz

Arbitrary-oriented objects widely appear in natural scenes, aerial photographs, remote sensing images, etc., thus arbitrary-oriented object detection has received considerable attention. Many current rotation detectors use plenty of anchors…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Qi Ming , Zhiqiang Zhou , Lingjuan Miao , Hongwei Zhang , Linhao Li

Current mainstream SAR image object detection methods still lack robustness when dealing with unknown objects in open environments. Open-set detection aims to enable detectors trained on a closed set to detect all known objects and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Xiayang Xiao , Zhuoxuan Li , Haipeng Wang