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Collaborative multi-agent exploration of unknown environments is crucial for search and rescue operations. Effective real-world deployment must address challenges such as limited inter-agent communication and static and dynamic obstacles.…

Robotics · Computer Science 2024-12-31 Gabriele Calzolari , Vidya Sumathy , Christoforos Kanellakis , George Nikolakopoulos

In the Vision-and-Language Navigation (VLN) task, an agent with egocentric vision navigates to a destination given natural language instructions. The act of manually annotating these instructions is timely and expensive, such that many…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Felix Yu , Zhiwei Deng , Karthik Narasimhan , Olga Russakovsky

Recent advances in trajectory replanning have enabled quadrotor to navigate autonomously in unknown environments. However, high-speed navigation still remains a significant challenge. Given very limited time, existing methods have no strong…

Robotics · Computer Science 2020-07-08 Boyu Zhou , Jie Pan , Fei Gao , Shaojie Shen

Autonomous navigation in unknown environments requires multi-scale spatial understanding that captures geometric details, topological connectivity, and global structure to support high-level decision making under partial observability.…

Robotics · Computer Science 2026-04-22 Kuankuan Sima , Longbin Tang , Zhenyu Yang , Haozhe Ma , Lin Zhao

We propose an end-to-end approach to the natural language object retrieval task, which localizes an object within an image according to a natural language description, i.e., referring expression. Previous works divide this problem into two…

Computer Vision and Pattern Recognition · Computer Science 2017-03-23 Fan Wu , Zhongwen Xu , Yi Yang

Vision-Language Navigation requires the agent to follow natural language instructions to reach a specific target. The large discrepancy between seen and unseen environments makes it challenging for the agent to generalize well. Previous…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Yujie Lu , Huiliang Zhang , Ping Nie , Weixi Feng , Wenda Xu , Xin Eric Wang , William Yang Wang

Vision-and-language navigation (VLN) is a trending topic which aims to navigate an intelligent agent to an expected position through natural language instructions. This work addresses the task of VLN from a previously-ignored aspect, namely…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Xinzhe Zhou , Wei Liu , Yadong Mu

Vision-and-Language Navigation (VLN) is a natural language grounding task where an agent learns to follow language instructions and navigate to specified destinations in real-world environments. A key challenge is to recognize and stop at…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Jiannan Xiang , Xin Eric Wang , William Yang Wang

Vision-and-Language Scene navigation is a fundamental capability for embodied human-AI collaboration, requiring agents to follow natural language instructions to execute coherent action sequences in complex environments. Existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Kaiming Jin , Yuefan Wu , Shengqiong Wu , Bobo Li , Shuicheng Yan , Tat-Seng Chua

Most recent work in goal oriented visual navigation resorts to large-scale machine learning in simulated environments. The main challenge lies in learning compact representations generalizable to unseen environments and in learning…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Guillaume Bono , Leonid Antsfeld , Boris Chidlovskii , Philippe Weinzaepfel , Christian Wolf

Inspired by human-like behaviors for navigation: first searching to explore unknown areas before discovering the target, and then the pathfinding of moving towards the discovered target, recent studies design parallel submodules to achieve…

Artificial Intelligence · Computer Science 2025-07-23 Yanwei Zheng , Shaopu Feng , Bowen Huang , Chuanlin Lan , Xiao Zhang , Dongxiao Yu

We deal with the navigation problem where the agent follows natural language instructions while observing the environment. Focusing on language understanding, we show the importance of spatial semantics in grounding navigation instructions…

Computation and Language · Computer Science 2021-05-17 Yue Zhang , Quan Guo , Parisa Kordjamshidi

As deep learning continues to make progress for challenging perception tasks, there is increased interest in combining vision, language, and decision-making. Specifically, the Vision and Language Navigation (VLN) task involves navigating to…

Artificial Intelligence · Computer Science 2019-03-06 Chih-Yao Ma , Zuxuan Wu , Ghassan AlRegib , Caiming Xiong , Zsolt Kira

This paper addresses the Object Goal Navigation problem, where a robot must efficiently find a target object in an unknown environment. Existing implicit memory-based methods struggle with long-term memory retention and planning, while…

Robotics · Computer Science 2025-12-02 Thomas Chabal , Shizhe Chen , Jean Ponce , Cordelia Schmid

This paper introduces a real-time algorithm for navigating complex unknown environments cluttered with movable obstacles. Our algorithm achieves fast, adaptable routing by actively attempting to manipulate obstacles during path planning and…

Robotics · Computer Science 2024-04-12 Botao He , Guofei Chen , Wenshan Wang , Ji Zhang , Cornelia Fermuller , Yiannis Aloimonos

Visual place recognition is a critical task in computer vision, especially for localization and navigation systems. Existing methods often rely on contrastive learning: image descriptors are trained to have small distance for similar images…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 María Leyva-Vallina , Nicola Strisciuglio , Nicolai Petkov

Vision-and-Language Navigation (VLN) in continuous environments requires agents to interpret natural language instructions while navigating unconstrained 3D spaces. Existing VLN-CE frameworks rely on a two-stage approach: a waypoint…

Robotics · Computer Science 2025-06-18 Xiangyu Shi , Zerui Li , Wenqi Lyu , Jiatong Xia , Feras Dayoub , Yanyuan Qiao , Qi Wu

Vision-and-Language Navigation (VLN) requires an agent to follow natural-language instructions, explore the given environments, and reach the desired target locations. These step-by-step navigational instructions are crucial when the agent…

Computation and Language · Computer Science 2020-05-08 Yubo Zhang , Hao Tan , Mohit Bansal

We propose a new context-aware correlation filter based tracking framework to achieve both high computational speed and state-of-the-art performance among real-time trackers. The major contribution to the high computational speed lies in…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Jongwon Choi , Hyung Jin Chang , Tobias Fischer , Sangdoo Yun , Kyuewang Lee , Jiyeoup Jeong , Yiannis Demiris , Jin Young Choi