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Safe flight in dynamic environments requires unmanned aerial vehicles (UAVs) to make effective decisions when navigating cluttered spaces with moving obstacles. Traditional approaches often decompose decision-making into hierarchical…

Robotics · Computer Science 2025-02-25 Zhefan Xu , Xinming Han , Haoyu Shen , Hanyu Jin , Kenji Shimada

The real-time dynamic environment perception has become vital for autonomous robots in crowded spaces. Although the popular voxel-based mapping methods can efficiently represent 3D obstacles with arbitrarily complex shapes, they can hardly…

Robotics · Computer Science 2024-01-17 Zhefan Xu , Xiaoyang Zhan , Baihan Chen , Yumeng Xiu , Chenhao Yang , Kenji Shimada

Deep reinforcement learning has achieved great success in laser-based collision avoidance work because the laser can sense accurate depth information without too much redundant data, which can maintain the robustness of the algorithm when…

Robotics · Computer Science 2021-08-24 Lingping Gao , Jianchuan Ding , Wenxi Liu , Haiyin Piao , Yuxin Wang , Xin Yang , Baocai Yin

Object detection in Unmanned Aerial Vehicle (UAV) images has emerged as a focal area of research, which presents two significant challenges: i) objects are typically small and dense within vast images; ii) computational resource constraints…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Chen Li , Rui Zhao , Zeyu Wang , Huiying Xu , Xinzhong Zhu

As an emerging technology, Connected Autonomous Vehicles (CAVs) are believed to have the ability to move through intersections in a faster and safer manner, through effective Vehicle-to-Everything (V2X) communication and global observation.…

Multiagent Systems · Computer Science 2022-07-26 Guanzhou Li , Jianping Wu , Yujing He

In the last few years, Deep Convolutional Neural Networks (D-CNNs) have shown state-of-the-art (SOTA) performance for Visual Place Recognition (VPR), a pivotal component of long-term intelligent robotic vision (vision-aware localization and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Ahmad Khaliq , Shoaib Ehsan , Michael Milford , Klaus McDonald-Maier

Autonomous indoor navigation of UAVs presents numerous challenges, primarily due to the limited precision of GPS in enclosed environments. Additionally, UAVs' limited capacity to carry heavy or power-intensive sensors, such as overheight…

Robotics · Computer Science 2024-12-25 Kangtong Mo , Linyue Chu , Xingyu Zhang , Xiran Su , Yang Qian , Yining Ou , Wian Pretorius

In this article we propose a reactive constrained navigation scheme, with embedded obstacles avoidance for an Unmanned Aerial Vehicle (UAV), for enabling navigation in obstacle-dense environments. The proposed navigation architecture is…

Robotics · Computer Science 2022-07-05 Björn Lindqvist , Sina Sharif Mansouri , Jakub Haluška , George Nikolakopoulos

Robust geo-localization in changing environmental conditions is critical for long-term aerial autonomy. While visual place recognition (VPR) models perform well when airborne views match the training domain, adapting them to shifting…

Robotics · Computer Science 2026-04-13 Xingyu Shao , Zhiqiang Yan , Liangzheng Sun , Mengfan He , Chao Chen , Jinhui Zhang , Chunyu Li , Ziyang Meng

The capability of UAVs for efficient autonomous navigation and obstacle avoidance in complex and unknown environments is critical for applications in agricultural irrigation, disaster relief and logistics. In this paper, we propose the DPRL…

Robotics · Computer Science 2024-12-10 Junqiao Wang , Zhongliang Yu , Dong Zhou , Jiaqi Shi , Runran Deng

The high mobility of unmanned aerial vehicles (UAVs) enables them to be used in various civilian fields, such as rescue and cargo transport. Path-following is a crucial way to perform these tasks while sensing and collision avoidance are…

Systems and Control · Electrical Eng. & Systems 2025-09-01 Changheng Wang , Zhiqing Wei , Wangjun Jiang , Haoyue Jiang , Zhiyong Feng

Camouflaged object detection (COD) primarily focuses on learning subtle yet discriminative representations from complex scenes. Existing methods predominantly follow the parametric feedforward architecture based on static visual…

Computer Vision and Pattern Recognition · Computer Science 2025-06-19 Chenxi Zhang , Jiayun Wu , Qing Zhang , Yazhe Zhai , Youwei Pang

Navigating unknown environments with a single RGB camera is challenging, as the lack of depth information prevents reliable collision-checking. While some methods use estimated depth to build collision maps, we found that depth estimates…

Robotics · Computer Science 2025-11-27 Basant Sharma , Prajyot Jadhav , Pranjal Paul , K. Madhava Krishna , Arun Kumar Singh

Deep reinforcement learning (DRL) has achieved remarkable progress in online path planning tasks for multi-UAV systems. However, existing DRL-based methods often suffer from performance degradation when tackling unseen scenarios, since the…

Robotics · Computer Science 2024-07-16 Jiafan Zhuang , Zihao Xia , Gaofei Han , Boxi Wang , Wenji Li , Dongliang Wang , Zhifeng Hao , Ruichu Cai , Zhun Fan

Small object detection in unmanned aerial vehicle (UAV) imagery is challenging, mainly due to scale variation, structural detail degradation, and limited computational resources. In high-altitude scenarios, fine-grained features are further…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Xuecheng Bai , Yuxiang Wang , Chuanzhi Xu , Boyu Hu , Kang Han , Ruijie Pan , Xiaowei Niu , Xiaotian Guan , Liqiang Fu , Pengfei Ye

Multi-UAV pursuit-evasion, where pursuers aim to capture evaders, poses a key challenge for UAV swarm intelligence. Multi-agent reinforcement learning (MARL) has demonstrated potential in modeling cooperative behaviors, but most RL-based…

Robotics · Computer Science 2025-07-09 Jiayu Chen , Chao Yu , Guosheng Li , Wenhao Tang , Shilong Ji , Xinyi Yang , Botian Xu , Huazhong Yang , Yu Wang

Deep reinforcement learning (RL), where the agent learns from mistakes, has been successfully applied to a variety of tasks. With the aim of learning collision-free policies for unmanned vehicles, deep RL has been used for training with…

A collision avoidance system based on simple digital cameras would help enable the safe integration of small UAVs into crowded, low-altitude environments. In this work, we present an obstacle avoidance system for small UAVs that uses a…

Robotics · Computer Science 2021-11-04 Kyle Hatch , John Mern , Mykel Kochenderfer

This paper presents an approach to exploring a multi-objective reinforcement learning problem with Model-Agnostic Meta-Learning. The environment we used consists of a 2D vehicle equipped with a LIDAR sensor. The goal of the environment is…

Machine Learning · Computer Science 2020-07-20 Abhiram Iyer , Aravind Mahadevan

Offline reinforcement learning (RL) is an attractive tool for unmanned aerial vehicle (UAV) systems, where online exploration is costly and raises safety concerns. In terrain-aware UAV relaying, agents may observe high-dimensional inputs…

Signal Processing · Electrical Eng. & Systems 2026-04-02 Joseanne Viana , Viswak R Balaji , Boris Galkin , Lester Ho , Holger Claussen