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The challenge of traversability estimation is a crucial aspect of autonomous navigation in unstructured outdoor environments such as forests. It involves determining whether certain areas are passable or risky for robots, taking into…

Robotics · Computer Science 2025-01-14 Fetullah Atas , Grzegorz Cielniak , Lars Grimstad

Aerial outdoor semantic navigation requires robots to explore large, unstructured environments to locate target objects. Recent advances in semantic navigation have demonstrated open-set object-goal navigation in indoor settings, but these…

Visual navigation in unknown environments based solely on natural language descriptions is a key capability for intelligent robots. In this work, we propose a navigation framework built upon off-the-shelf Visual Language Models (VLMs),…

Robotics · Computer Science 2025-08-08 Weifan Zhang , Tingguang Li , Yuzhen Liu

Mobile robot navigation in complex and dynamic environments is a challenging but important problem. Reinforcement learning approaches fail to solve these tasks efficiently due to reward sparsities, temporal complexities and…

Robotics · Computer Science 2018-04-30 Xi Chen , Ali Ghadirzadeh , John Folkesson , Patric Jensfelt

"Embodied visual navigation" problem requires an agent to navigate in a 3D environment mainly rely on its first-person observation. This problem has attracted rising attention in recent years due to its wide application in autonomous…

Robotics · Computer Science 2021-10-12 Fengda Zhu , Yi Zhu , Vincent CS Lee , Xiaodan Liang , Xiaojun Chang

Humans can routinely follow a trajectory defined by a list of images/landmarks. However, traditional robot navigation methods require accurate mapping of the environment, localization, and planning. Moreover, these methods are sensitive to…

Robotics · Computer Science 2019-05-30 Noriaki Hirose , Fei Xia , Roberto Martin-Martin , Amir Sadeghian , Silvio Savarese

This paper contributes a novel and modularized learning-based method for aerial robots navigating cluttered environments containing hard-to-perceive thin obstacles without assuming access to a map or the full pose estimation of the robot.…

Robotics · Computer Science 2023-07-24 Mihir Kulkarni , Huan Nguyen , Kostas Alexis

Object Goal Navigation (ObjectNav) task is to navigate an agent to an object category in unseen environments without a pre-built map. In this paper, we solve this task by predicting the distance to the target using semantically-related…

Robotics · Computer Science 2022-07-14 Minzhao Zhu , Binglei Zhao , Tao Kong

A hybrid map representation, which consists of a modified generalized Voronoi Diagram (GVD)-based topological map and a grid-based metric map, is proposed to facilitate a new frontier-driven exploration strategy. Exploration frontiers are…

Robotics · Computer Science 2020-04-21 Wenchao Gao , Matthew Booker , Jiadong Wang

In target-driven navigation and autonomous exploration, reasonable prediction of unknown regions is crucial for efficient navigation and environment understanding. Existing methods mostly focus on single objects or geometric occupancy maps,…

Robotics · Computer Science 2025-09-26 Jiaxuan He , Jiamei Ren , Chongshang Yan , Wenjie Song

Autonomous shipping has recently gained much interest in the research community. However, little research focuses on inland - and port navigation, even though this is identified by countries such as Belgium and the Netherlands as an…

Machines are a long way from robustly solving open-world perception-control tasks, such as first-person view (FPV) aerial navigation. While recent advances in end-to-end Machine Learning, especially Imitation and Reinforcement Learning…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Rogerio Bonatti , Ratnesh Madaan , Vibhav Vineet , Sebastian Scherer , Ashish Kapoor

Object goal visual navigation is a challenging task that aims to guide a robot to find the target object based on its visual observation, and the target is limited to the classes pre-defined in the training stage. However, in real…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Qianfan Zhao , Lu Zhang , Bin He , Hong Qiao , Zhiyong Liu

Active Simultaneous Localisation and Mapping (SLAM) is a critical problem in autonomous robotics, enabling robots to navigate to new regions while building an accurate model of their surroundings. Visual SLAM is a popular technique that…

Robotics · Computer Science 2023-07-17 Kenji Leong

We study the task of embodied visual active learning, where an agent is set to explore a 3d environment with the goal to acquire visual scene understanding by actively selecting views for which to request annotation. While accurate on some…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 David Nilsson , Aleksis Pirinen , Erik Gärtner , Cristian Sminchisescu

Visual navigation models based on deep learning can learn effective policies when trained on large amounts of visual observations through reinforcement learning. Unfortunately, collecting the required experience in the real world requires…

Robotics · Computer Science 2020-10-27 Marco Rosano , Antonino Furnari , Luigi Gulino , Giovanni Maria Farinella

Autonomous robots navigating in off-road terrain like forests open new opportunities for automation. While off-road navigation has been studied, existing work often relies on clearly delineated pathways. We present a method allowing for…

Robotics · Computer Science 2024-10-04 Jean-François Tremblay , Julie Alhosh , Louis Petit , Faraz Lotfi , Lara Landauro , David Meger

Autonomous 3D environment exploration is a fundamental task for various applications such as navigation. The goal of exploration is to investigate a new environment and build its occupancy map efficiently. In this paper, we propose a new…

Artificial Intelligence · Computer Science 2021-11-03 Liu Juncheng , McCane Brendan , Mills Steven

We present a novel sensor-based learning navigation algorithm to compute a collision-free trajectory for a robot in dense and dynamic environments with moving obstacles or targets. Our approach uses deep reinforcement learning-based expert…

Robotics · Computer Science 2021-07-20 Aaron M. Roth , Jing Liang , Dinesh Manocha

Embodied scene understanding requires not only comprehending visual-spatial information that has been observed but also determining where to explore next in the 3D physical world. Existing 3D Vision-Language (3D-VL) models primarily focus…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Ziyu Zhu , Xilin Wang , Yixuan Li , Zhuofan Zhang , Xiaojian Ma , Yixin Chen , Baoxiong Jia , Wei Liang , Qian Yu , Zhidong Deng , Siyuan Huang , Qing Li