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Visual Localization is an essential component in autonomous navigation. Existing approaches are either based on the visual structure from SLAM/SfM or the geometric structure from dense mapping. To take the advantages of both, in this work,…

Robotics · Computer Science 2020-11-10 Huaiyang Huang , Haoyang Ye , Jianhao Jiao , Yuxiang Sun , Ming Liu

Navigation of UAVs in challenging environments like tunnels or mines, where it is not possible to use GNSS methods to self-localize, illumination may be uneven or nonexistent, and wall features are likely to be scarce, is a complex task,…

Robotics · Computer Science 2026-04-30 Lorenzo Cano , Alejandro R. Mosteo , Danilo Tardioli

In emergency search and rescue scenarios, the quick location of trapped people is essential. However, disasters can render the Global Positioning System (GPS) unusable. Unmanned aerial vehicles (UAVs) with localization devices can serve as…

Multiagent Systems · Computer Science 2024-01-17 Zhihao Zhu , Jiafan He , Luyang Hou , Lianming Xu , Wendi Zhu , Li Wang

Autonomous landing of Unmanned Aerial Vehicles (UAVs) in crowded scenarios is crucial for successful deployment of UAVs in populated areas, particularly in emergency landing situations where the highest priority is to avoid hurting people.…

Robotics · Computer Science 2022-03-01 Javier González-Trejo , Diego Mercado-Ravell , Israel Becerra , Rafael Murrieta-Cid

Visual object tracking (VOT) plays a pivotal role in unmanned aerial vehicle (UAV) applications. Addressing the trade-off between accuracy and efficiency, especially under challenging conditions like unpredictable occlusion, remains a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Yang Zhou , Derui Ding , Ran Sun , Ying Sun , Haohua Zhang

Localization is one of the most important technologies needed to use Unmanned Aerial Vehicles (UAVs) in actual fields. Currently, most UAVs use GNSS to estimate their position. Recently, there have been attacks that target the weaknesses of…

Robotics · Computer Science 2020-08-06 Junho Choi , Hyun Myung

Motivated by the goal of achieving long-term drift-free camera pose estimation in complex scenarios, we propose a global positioning framework fusing visual, inertial and Global Navigation Satellite System (GNSS) measurements in multiple…

Robotics · Computer Science 2022-01-06 Bing Han , Zhongyang Xiao , Shuai Huang , Tao Zhang

The application of unmanned aerial vehicles (UAV) has been widely extended recently. It is crucial to ensure accurate latitude and longitude coordinates for UAVs, especially when the global navigation satellite systems (GNSS) are disrupted…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Wenjia Xu , Yaxuan Yao , Jiaqi Cao , Zhiwei Wei , Chunbo Liu , Jiuniu Wang , Mugen Peng

In emergency scenarios, unmanned aerial vehicles (UAVs) can be deployed to assist localization and communication services for ground terminals. In this paper, we propose a new integrated air-ground networking paradigm that uses…

Systems and Control · Electrical Eng. & Systems 2022-09-13 Zheyuan Yang , Suzhi Bi , Ying-Jun Angela Zhang

To improve the localization precision of unmanned aerial vehicle (UAV), a novel framework is established by jointly utilizing multiple measurements of received signal strength (RSS) from multiple base stations (BSs) and multiple points on…

Signal Processing · Electrical Eng. & Systems 2020-11-04 Yifan Li , Feng Shu , Baihua Shi , Xin Cheng , Yaoliang Song , Jiangzhou Wang

Unmanned aerial vehicles (UAVs) are becoming largely ubiquitous with an increasing demand for aerial data. Accurate navigation and localization, required for precise data collection in many industrial applications, often relies on RTK GNSS.…

Robotics · Computer Science 2021-04-02 Yu Xianjia , Li Qingqing , Jorge Pena Queralta , Jukka Heikkonen , Tomi Westerlund

Visible light positioning (VLP) technology is a promising technique as it can provide high accuracy positioning based on the existing lighting infrastructure. However, existing approaches often require dense lighting distributions.…

Robotics · Computer Science 2021-09-06 Weipeng Guan , Patrick Yue

Geo-localization is the task of identifying the location of an image using visual cues alone. It has beneficial applications, such as improving disaster response, enhancing navigation, and geography education. Recently, Vision-Language…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Oliver Grainge , Sania Waheed , Jack Stilgoe , Michael Milford , Shoaib Ehsan

Robotic underwater systems, e.g., Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs), are promising tools for collecting biogeochemical data at the ice-water interface for scientific advancements. However, state…

Robotics · Computer Science 2023-08-11 Lin Zhao , Mingxi Zhou , Brice Loose

Modern unmanned aerial vehicles (UAVs) are irreplaceable in search and rescue (SAR) missions to obtain a situational overview or provide closeups without endangering personnel. However, UAVs heavily rely on global navigation satellite…

Robotics · Computer Science 2024-12-04 Jan Quenzel , Linus T. Mallwitz , Benedikt T. Arnold , Sven Behnke

On the off-the-shelf navigational assistance devices, the localization precision is limited to the signal error of global navigation satellite system (GNSS). During travelling outdoors, the inaccurately localization perplexes visually…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Ruiqi Cheng , Kaiwei Wang , Longqing Lin , Kailun Yang

VIO has been widely used and researched to control and aid the automation of navigation of robots especially in the absence of absolute position measurements, such as GPS. However, when observable landmarks in the scene lie far away from…

Robotics · Computer Science 2020-09-11 Marco Karrer , Margarita Chli

This paper tackles the problem of positioning a swarm of UAVs inside a completely unknown terrain, having as objective to maximize the overall situational awareness. The situational awareness is expressed by the number and quality of unique…

Robotics · Computer Science 2020-07-03 Dimitrios I. Koutras , Athanasios Ch. Kapoutsis , Elias B. Kosmatopoulos

Currently, self-driving cars rely greatly on the Global Positioning System (GPS) infrastructure, albeit there is an increasing demand for alternative methods for GPS-denied environments. One of them is known as place recognition, which…

Robotics · Computer Science 2018-05-16 Avelino Forechi , Thiago Oliveira-Santos , Claudine Badue , Alberto F. De Souza

Unmanned Aerial Vehicles (UAVs) hold immense potential for critical applications, such as search and rescue operations, where accurate perception of indoor environments is paramount. However, the concurrent amalgamation of localization, 3D…

Robotics · Computer Science 2024-01-17 Thanh Nguyen Canh , Van-Truong Nguyen , Xiem HoangVan , Armagan Elibol , Nak Young Chong