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200 papers

Accurate, high-resolution, and real-time DOA estimation is a cornerstone of environmental perception in automotive radar systems. While sparse signal recovery techniques offer super-resolution and high-precision estimation, their…

Signal Processing · Electrical Eng. & Systems 2026-02-19 Longxin Bai , Jingchao Zhang , Liyan Qiao

Automated Aerial Triangulation (AAT), aiming to restore image pose and reconstruct sparse points simultaneously, plays a pivotal role in earth observation. With its rich research heritage spanning several decades in photogrammetry, AAT has…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Zequan Chen , Jianping Li , Qusheng Li , Bisheng Yang , Zhen Dong

Dangerous surroundings and difficult-to-reach landscapes introduce significant complications for adequate disaster management and recuperation. These problems can be solved by engaging unmanned aerial vehicles (UAVs) provided with embedded…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Branislava Jankovic , Sabina Jangirova , Waseem Ullah , Latif U. Khan , Mohsen Guizani

Object detection in unmanned aerial vehicle (UAV) imagery presents significant challenges. Issues such as densely packed small objects, scale variations, and occlusion are commonplace. This paper introduces RT-DETR++, which enhances the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Yuan Shufang

Adversarial attacks have highlighted the vulnerability of classifiers based on machine learning for Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR) tasks. An adversarial attack perturbs SAR images of on-ground targets such…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Tian Ye , Rajgopal Kannan , Viktor Prasanna , Carl Busart , Lance Kaplan

The growing Synthetic Aperture Radar (SAR) data has the potential to build a foundation model through Self-Supervised Learning (SSL) methods, which can achieve various SAR Automatic Target Recognition (ATR) tasks with pre-training in…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Weijie Li , Yang Wei , Tianpeng Liu , Yuenan Hou , Yuxuan Li , Zhen Liu , Yongxiang Liu , Li Liu

Despite the remarkable progress in synthetic aperture radar automatic target recognition (SAR ATR), recent efforts have concentrated on detecting and classifying a specific category, e.g., vehicles, ships, airplanes, or buildings. One of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Weijie Li , Wei Yang , Yuenan Hou , Li Liu , Yongxiang Liu , Xiang Li

In this paper, we address the problem of adaptive path planning for accurate semantic segmentation of terrain using unmanned aerial vehicles (UAVs). The usage of UAVs for terrain monitoring and remote sensing is rapidly gaining momentum due…

Robotics · Computer Science 2021-08-05 Felix Stache , Jonas Westheider , Federico Magistri , Marija Popović , Cyrill Stachniss

The sparse-driven radar imaging can obtain the high-resolution images about target scene with the down-sampled data. However, the huge computational complexity of the classical sparse recovery method for the particular situation seriously…

Quantum Physics · Physics 2022-01-05 Xiaowen Liu , Chen Dong , Ying Luo , Le Kang , Yong Liu , Qun Zhang

Augmented reality (AR) has gained increasingly attention from both research and industry communities. By overlaying digital information and content onto the physical world, AR enables users to experience the world in a more informative and…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Rui Huang , Chuan Fang , Kejie Qiu , Le Cui , Zilong Dong , Siyu Zhu , Ping Tan

Utilizing autonomous drones or unmanned aerial vehicles (UAVs) has shown great advantages over preceding methods in support of urgent scenarios such as search and rescue (SAR) and wildfire detection. In these operations, search efficiency…

Robotics · Computer Science 2022-11-30 Mohammadjavad Khosravi , Rushiv Arora , Saeede Enayati , Hossein Pishro-Nik

Synthetic Aperture Radar (SAR) is a critical sensing technology that is notably independent of the sensor-to-target distance and has numerous cross-cutting applications, e.g., target recognition, mapping, surveillance, oceanography,…

Image and Video Processing · Electrical Eng. & Systems 2020-05-25 Andrew R. Willis , Md Sajjad Hossain , Jamie Godwin

GATR (Globally-scalable Automated Target Recognition) is a Lockheed Martin software system for real-time object detection and classification in satellite imagery on a worldwide basis. GATR uses GPU-accelerated deep learning software to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-11 Gary Chern , Austen Groener , Michael Harner , Tyler Kuhns , Andy Lam , Stephen O'Neill , Mark Pritt

To improve ATR identification of ships at sea requires an advanced ISAR processor - one that not only provides focused images but can also determine the pose of the ship. This tells us whether the image shows a profile (vertical plane)…

Signal Processing · Electrical Eng. & Systems 2025-04-21 John R. Bennett

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

Due to its all-weather and day-and-night capabilities, Synthetic Aperture Radar imagery is essential for various applications such as disaster management, earth monitoring, change detection and target recognition. However, the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Max Muzeau , Joana Frontera-Pons , Chengfang Ren , Jean-Philippe Ovarlez

Synthetic aperture radar (SAR) images are widely used in target recognition tasks nowadays. In this letter, we propose an automatic approach for radar shadow detection and extraction from SAR images utilizing geometric projections along…

Computer Vision and Pattern Recognition · Computer Science 2014-12-16 V. B. S. Prasath , O. Haddad

The rapid growth of the low-altitude economy (LAE) is making aerial systems an important part of future digital infrastructure. Although major advances have been achieved in unmanned aerial vehicle (UAV) platforms, communications, and…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Xue Zhang , Bang Huang , Mohamed-Slim Alouini

Unmanned Aerial Vehicles (UAVs), equipped with camera sensors can facilitate enhanced situational awareness for many emergency response and disaster management applications since they are capable of operating in remote and difficult to…

Computer Vision and Pattern Recognition · Computer Science 2019-06-21 Christos Kyrkou , Theocharis Theocharides

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