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In this paper, a novel framework is proposed to enable a predictive deployment of unmanned aerial vehicles (UAVs) as temporary base stations (BSs) to complement ground cellular systems in face of downlink traffic overload. First, a novel…

Information Theory · Computer Science 2020-09-15 Qianqian Zhang , Walid Saad , Mehdi Bennis , Xing Lu , Merouane Debbah , Wangda Zuo

Unmanned Aerial Vehicles (UAV) can pose a major risk for aviation safety, due to both negligent and malicious use. For this reason, the automated detection and tracking of UAV is a fundamental task in aerial security systems. Common…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Brian K. S. Isaac-Medina , Matt Poyser , Daniel Organisciak , Chris G. Willcocks , Toby P. Breckon , Hubert P. H. Shum

The remarkable growth of unmanned aerial vehicles (UAVs) has also sparked concerns about safety measures during their missions. To advance towards safer autonomous aerial robots, this work presents a vision-based solution to ensuring safe…

Robotics · Computer Science 2023-10-09 Phuoc Nguyen Thuan , Tomi Westerlund , Jorge Peña Queralta

This paper proposes an ultra-wideband (UWB) aided localization and mapping system that leverages on inertial sensor and depth camera. Inspired by the fact that visual odometry (VO) system, regardless of its accuracy in the short term, still…

Robotics · Computer Science 2018-02-27 Chen Wang , Handuo Zhang , Thien-Minh Nguyen , Lihua Xie

In this paper, an unmanned aerial vehicle (UAVs)-assisted visible light communication (VLC) has been considered which has two tiers: UAV-to-centroid and device-to-device (D2D). In the UAV-to-centroid tier, each UAV can simultaneously…

Signal Processing · Electrical Eng. & Systems 2023-06-05 Alireza Qazavi , Foroogh S Tabataba , Mehdi Naderi Soorki

For emergency response scenarios like firefighting in urban environments, there is a need to both localize emergency responders inside the building and also support a high bandwidth communication link between the responders and a…

Signal Processing · Electrical Eng. & Systems 2025-01-15 Gaurav Duggal , R. Michael Buehrer , Nishith Tripathi , Jeffrey H. Reed

The emerging drone aerial survey has the advantages of low cost, high efficiency, and flexible use. However, UAVs are often equipped with cheap POS systems and non-measurement cameras, and their flight attitudes are easily affected. How to…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Jiageng Zhong , Ming Li , Jiangying Qin , Hanqi Zhang

Vision-Language Navigation (VLN) for Unmanned Aerial Vehicles (UAVs) demands complex visual interpretation and continuous control in dynamic 3D environments. Existing hierarchical approaches rely on dense oracle guidance or auxiliary object…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Peng Xu , Zhengnan Deng , Jiayan Deng , Zonghua Gu , Shaohua Wan

Object detection from images captured by Unmanned Aerial Vehicles (UAVs) is becoming increasingly useful. Despite the great success of the generic object detection methods trained on ground-to-ground images, a huge performance drop is…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Zhenyu Wu , Karthik Suresh , Priya Narayanan , Hongyu Xu , Heesung Kwon , Zhangyang Wang

Unmanned aerial vehicles (UAVs) have attracted plenty of attention due to their high flexibility and enhanced communication ability. However, the limited coverage and energy of UAVs make it difficult to provide timely wireless service for…

Systems and Control · Electrical Eng. & Systems 2024-12-18 Rui Wang , Kaitao Meng , Deshi Li

The increasing spreading of small commercial Unmanned Aerial Vehicles (UAVs, aka drones) presents serious threats for critical areas such as airports, power plants, governmental and military facilities. In fact, such UAVs can easily disturb…

Robotics · Computer Science 2023-12-13 Marco Esposito , Toni Mancini , Enrico Tronci

While many unsupervised learning models focus on one family of tasks, either generative or discriminative, we explore the possibility of a unified representation learner: a model which uses a single pre-training stage to address both…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Soumik Mukhopadhyay , Matthew Gwilliam , Vatsal Agarwal , Namitha Padmanabhan , Archana Swaminathan , Srinidhi Hegde , Tianyi Zhou , Abhinav Shrivastava

Collecting and annotating images with pixel-wise labels is time-consuming and laborious. In contrast, synthetic data can be freely available using a generative model (e.g., DALL-E, Stable Diffusion). In this paper, we show that it is…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Weijia Wu , Yuzhong Zhao , Mike Zheng Shou , Hong Zhou , Chunhua Shen

Enhancing 3D and Z-axis positioning accuracy is crucial for effective rescue in indoor emergencies, ensuring safety for emergency responders and at-risk individuals. Additionally, reducing the dependence of a positioning system on fixed…

Signal Processing · Electrical Eng. & Systems 2025-01-15 Gaurav Duggal , R. Michael Buehrer , Harpreet S. Dhillon , Jeffrey H. Reed

With the emergence of compute-intensive and delay-sensitive applications in vehicular networks, unmanned aerial vehicles (UAVs) have emerged as a promising complement for vehicular edge computing due to the high mobility and flexible…

Machine Learning · Computer Science 2025-07-09 Hongbao Li , Ziye Jia , Sijie He , Kun Guo , Qihui Wu

Wireless localization has become a promising technology for offering intelligent location-based services. Although its localization accuracy is improved under specific scenarios, the short of environmental dynamic vulnerability still…

Signal Processing · Electrical Eng. & Systems 2025-08-06 Lingyan Zhang , Yuanfeng Qiu , Dachuan Li , Shaohua Wu , Tingting Zhang , Qinyu Zhang

The problem of unsupervised learning and segmentation of hyperspectral images is a significant challenge in remote sensing. The high dimensionality of hyperspectral data, presence of substantial noise, and overlap of classes all contribute…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 James M. Murphy , Mauro Maggioni

Vision-and-Language Navigation (VLN), where an agent follows instructions to reach a target destination, has recently seen significant advancements. In contrast to navigation in discrete environments with predefined trajectories, VLN in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Guangzhao Dai , Jian Zhao , Yuantao Chen , Yusen Qin , Hao Zhao , Guosen Xie , Yazhou Yao , Xiangbo Shu , Xuelong Li

The global positioning system (GPS) has become an indispensable navigation method for field operations with unmanned surface vehicles (USVs) in marine environments. However, GPS may not always be available outdoors because it is vulnerable…

Diffusion models have been successfully applied to robotics problems such as manipulation and vehicle path planning. In this work, we explore their application to end-to-end navigation -- including both perception and planning -- by…

Robotics · Computer Science 2024-09-27 L. Lao Beyer , S. Karaman