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In this paper, a simple technique for Unmanned Aerial Vehicles (UAVs) potential landing site detection using terrain information through identification of flat areas, is presented. The algorithm utilizes digital elevation models (DEM) that…

计算机视觉与模式识别 · 计算机科学 2021-07-16 Efstratios Kakaletsis , Nikos Nikolaidis

In this paper, we propose a resource-efficient approach to provide an autonomous UAV with an on-board perception method to detect safe, hazard-free landing sites during flights over complex 3D terrain. We aggregate 3D measurements acquired…

Globally 800 million people live within 100 km of a volcano and currently 1500 volcanoes are considered active, but half of these have no ground-based monitoring. Alternatively, satellite radar (InSAR) can be employed to observe volcanic…

计算机视觉与模式识别 · 计算机科学 2018-03-02 N. Anantrasirichai , F. Albino , P. Hill , D. Bull , J. Biggs

During missions involving radiation exposure, unmanned robotic platforms may embody a valuable tool, especially thanks to their capability of replacing human operators in certain tasks to eliminate the health risks associated with such an…

机器人学 · 计算机科学 2021-02-23 Petr Gabrlik , Tomas Lazna , Tomas Jilek , Petr Sladek , Ludek Zalud

The present work deals with a new passive system for real-time detection, classification and direction of arrival estimator of Unmanned Aerial Vehicles (UAVs). The proposed system composed of a very low cost hardware components, comprises…

音频与语音处理 · 电气工程与系统科学 2019-03-01 Konstantinos Polyzos , Evangelos Dermatas

Autonomous hazard detection and avoidance is a key technology for future landing missions in unknown surface conditions. Current state-of-the-art stochastic algorithms assume simple Gaussian measurement noise on dense, high-fidelity digital…

机器人学 · 计算机科学 2023-05-09 Kento Tomita , Koki Ho

Hazard detection is critical for enabling autonomous landing on planetary surfaces. Current state-of-the-art methods leverage traditional computer vision approaches to automate the identification of safe terrain from input digital elevation…

机器人学 · 计算机科学 2025-08-27 Kento Tomita , Katherine A. Skinner , Koki Ho

Ground penetrating radar (GPR) is one of the most popular and successful sensing modalities that has been investigated for landmine and subsurface threat detection. Many of the detection algorithms applied to this task are supervised and…

计算机视觉与模式识别 · 计算机科学 2016-12-13 Daniël Reichman , Leslie M. Collins , Jordan M. Malof

A key capability for autonomous underground mining vehicles is real-time accurate localisation. While significant progress has been made, currently deployed systems have several limitations ranging from dependence on costly additional…

机器人学 · 计算机科学 2019-07-01 Fan Zeng , Adam Jacobson , David Smith , Nigel Boswell , Thierry Peynot , Michael Milford

The integration of radar sensors and communication networks as envisioned for the 6G wireless networks poses significant security risks, e.g., the user position information can be released to an unauthorized dual-functional base station…

信息论 · 计算机科学 2025-01-28 Fan Xu , Wenhai Lai , Kaiming Shen

Multi-beam radar sensing systems are emerging as powerful tools for non-contact motion tracking and vital-sign monitoring in healthcare environments. This paper presents the design and experimental validation of a synchronized…

信号处理 · 电气工程与系统科学 2026-01-21 Mohammad Omid Bagheri , Justin Chow , Josh Visser , Veronica Leong , George Shaker

In this paper, we investigate full-wave computed radar tomography (CRT) using a rubble-pile asteroid model in which a realistic shape (Itokawa) is coupled with a synthetic material composition and structure model. The aim is to show that…

地球与行星天体物理 · 物理学 2019-09-12 Liisa-Ida Sorsa , Mika Takala , Patrick Bambach , Jakob Deller , Esa Vilenius , Sampsa Pursiainen

Due to its cloud-penetrating capability and independence from solar illumination, satellite Synthetic Aperture Radar (SAR) is the preferred data source for large-scale flood mapping, providing global coverage and including various land…

计算机视觉与模式识别 · 计算机科学 2024-06-07 Jie Zhao , Zhitong Xiong , Xiao Xiang Zhu

Understanding the extent of urban flooding is crucial for assessing building damage, casualties and economic losses. Synthetic Aperture Radar (SAR) technology offers significant advantages for mapping flooded urban areas due to its ability…

图像与视频处理 · 电气工程与系统科学 2024-11-08 Jie Zhao , Ming Li , Yu Li , Patrick Matgen , Marco Chini

The use of multi-rotor Unmanned Aerial Vehicles (UAVs) for search and rescue as well as remote sensing is rapidly increasing. Multi-rotor UAVs, however, have limited endurance. The range of UAV applications can be widened if teams of…

机器人学 · 计算机科学 2021-08-12 Xiaolong Zhu , Fernando Vanegas , Felipe Gonzalez , Conrad Sanderson

The aftermath of air raids can still be seen for decades after the devastating events. Unexploded ordnance (UXO) is an immense danger to human life and the environment. Through the assessment of wartime images, experts can infer the…

计算机视觉与模式识别 · 计算机科学 2022-09-26 Marco Geiger , Dominik Martin , Niklas Kühl

This paper proposes a method for detecting multiple scatterers (targets) in the elevation direction for synthetic aperture radar (SAR) tomography. The proposed method can resolve closely spaced targets through a twostep procedure. In the…

信息论 · 计算机科学 2022-04-11 Ahmad Naghavi , Mohammad Sadegh Fazel , Mojtaba Beheshti , Ehsan Yazdian

Synthetic aperture radar (SAR) can measure the phase with antenna and microwave, which cannot be directly extended to visible light imaging due to phase lost. In this letter, we reported an active remote sensing with visible light via…

光学 · 物理学 2022-04-26 Meng Xiang , An Pan , Yiyi Zhao , Xuewu Fan , Hui Zhao , Chuang Li , Baoli Yao

In the past decade, the adoption of compact 3D range sensors, such as LiDARs, has driven the developments of robust state-estimation pipelines, making them a standard sensor for aerial, ground, and space autonomy. Unfortunately, poor…

The paper defines a new coordinate system that was developed in 1977-78 for the world's first digital synthetic aperture radar (SAR) ground processor for images from the Seasat-A satellite. The coordinate system is for the range-Doppler…

物理学史与哲学 · 物理学 2018-08-21 P. H. Robert Orth