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Zero-Shot Object Navigation in unknown environments poses significant challenges for Unmanned Aerial Vehicles (UAVs) due to the conflict between high-level semantic reasoning requirements and limited onboard computational resources. To…

Robotics · Computer Science 2026-02-04 Weiqi Gai , Yuman Gao , Yuan Zhou , Yufan Xie , Zhiyang Liu , Yuze Wu , Xin Zhou , Fei Gao , Zhijun Meng

Safe UAV emergency landing requires more than just identifying flat terrain; it demands understanding complex semantic risks (e.g., crowds, temporary structures) invisible to traditional geometric sensors. In this paper, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Chunliang Hua , Zeyuan Yang , Lei Zhang , Jiayang Sun , Fengwen Chen , Chunlan Zeng , Xiao Hu

With the rapid growth of the low-altitude economy, UAVs have become crucial for measurement and tracking in patrol systems. However, in GNSS-denied areas, satellite-based localization methods are prone to failure. This paper presents a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Tao Liu , Kan Ren , Qian Chen

Relative localization of unmanned aerial vehicle (UAV) swarms in global navigation satellite system (GNSS) denied environments is essential for emergency rescue and battlefield reconnaissance. Existing methods suffer from significant…

Signal Processing · Electrical Eng. & Systems 2025-09-05 Guangyu Lei , Yuqi Ping , Tianhao Liang , Huahao Ding , Tingting Zhang

We present a waypoint planning algorithm for an unmanned aerial vehicle (UAV) that is teamed with an unmanned ground vehicle (UGV) for the task of search and rescue in a subterranean environment. The UAV and UGV are teamed such that the…

Robotics · Computer Science 2021-02-12 Matteo De Petrillo , Jared Beard , Yu Gu , Jason N. Gross

Semantic segmentation for uncrewed aerial vehicles (UAVs) is fundamental for aerial scene understanding, yet existing RGB and RGB-T datasets remain limited in scale, diversity, and annotation efficiency due to the high cost of manual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Markus Gross , Sai Bharadhwaj Matha , Rui Song , Viswanathan Muthuveerappan , Conrad Christoph , Julius Huber , Daniel Cremers

Recent advances in Unmanned Aerial Vehicles (UAVs) have resulted in their quick adoption for wide a range of civilian applications, including precision agriculture, biosecurity, disaster monitoring and surveillance. UAVs offer low-cost…

Robotics · Computer Science 2023-08-22 Juan Sandino , Peter A. Caccetta , Conrad Sanderson , Frederic Maire , Felipe Gonzalez

Conventional autonomous Unmanned Air Vehicle (abbr. UAV) autopilot systems use Global Navigation Satellite System (abbr. GNSS) signal for navigation. However, autopilot systems fail to navigate due to lost or jammed GNSS signal. To solve…

Robotics · Computer Science 2019-10-29 Rokas Jurevičius , Virginijus Marcinkevičius , Justinas Šeibokas

Navigation and localization of UAVs present a challenge when global navigation satellite systems (GNSS) are disrupted and unreliable. Traditional techniques, such as simultaneous localization and mapping (SLAM) and visual odometry (VO),…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Haoling Li , Jiuniu Wang , Zhiwei Wei , Wenjia Xu

This paper considers outdoor terrain mapping using RGB images obtained from an aerial vehicle. While feature-based localization and mapping techniques deliver real-time vehicle odometry and sparse keypoint depth reconstruction, a dense…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Qiaojun Feng , Nikolay Atanasov

Accurate localization of maritime targets by unmanned aerial vehicles (UAVs) remains challenging in GPS-denied environments. UAVs equipped with gimballed electro-optical sensors are typically used to localize targets, however, reliance on…

Systems and Control · Electrical Eng. & Systems 2026-02-12 Alfonso Sciacchitano , Liraz Mudrik , Sean Kragelund , Isaac Kaminer

Recent advances in Neural Radiance Fields and 3D Gaussian Splatting have demonstrated strong potential for large-scale UAV-based 3D reconstruction tasks by fitting the appearance of images. However, real-world large-scale captures are often…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Zhuoxiao Li , Wenzong Ma , Taoyu Wu , Jinjing Zhu , Zhenchao Q , Shuai Zhang , Jing Ou , Yinrui Ren , Weiqing Qi , Guobin Shen , Hui Xiong , Wufan Zhao

This paper presents a framework for the localization of Unmanned Aerial Vehicles (UAVs) in unstructured environments with the help of deep learning. A real-time rendering engine is introduced that generates optical and depth images given a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Timo Hinzmann , Roland Siegwart

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

Spectrum sensing and the generation of 3D Radio Environment Maps (REMs) are essential for enabling spectrum sharing within cognitive radio networks. While Uncrewed Aerial Vehicles (UAVs) offer high-mobility 3D sensing, REM accuracy is…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Mushfiqur Rahman , Sung Joon Maeng , Ismail Guvenc , Chau-Wai Wong , Mihail Sichitiu , Jason A. Abrahamson , Arupjyoti Bhuyan

Unmanned Aerial Vehicles (UAVs) rely on satellite systems for stable positioning. However, due to limited satellite coverage or communication disruptions, UAVs may lose signals from satellite-based positioning systems. In such situations,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Ming Dai , Enhui Zheng , Zhenhua Feng , Jiedong Zhuang , Wankou Yang

Reliable real-time 3D localization is essential for multi-UAV navigation, collision avoidance, and coordinated flight, yet onboard estimates can degrade under GNSS multipath, non-line-of-sight reception, vertical drift, and intentional…

Robotics · Computer Science 2026-05-14 Hosam Alamleh , Damir Pulatov

Absolute Visual Localization (AVL) enables an Unmanned Aerial Vehicle (UAV) to determine its position in GNSS-denied environments by establishing geometric relationships between UAV images and geo-tagged reference maps. While many previous…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yibin Ye , Xichao Teng , Shuo Chen , Leqi Liu , Kun Wang , Xiaokai Song , Zhang Li

Precise geolocalization is crucial for unmanned aerial vehicles (UAVs). However, most current deployed UAVs rely on the global navigation satellite systems (GNSS) or high precision inertial navigation systems (INS) for geolocalization. In…

Robotics · Computer Science 2023-01-02 Jun Mao , Lilian Zhang , Xiaofeng He , Hao Qu , Xiaoping Hu

Thermal imaging from unmanned aerial vehicles (UAVs) holds significant potential for applications in search and rescue, wildlife monitoring, and emergency response, especially under low-light or obscured conditions. However, the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Antonella Barisic Kulas , Andreja Jurasovic , Stjepan Bogdan