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3D scene understanding is fundamental for embodied AI and robotics, supporting reliable perception for interaction and navigation. Recent approaches achieve zero-shot, open-vocabulary 3D semantic mapping by assigning embedding vectors to 2D…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Mohamad Amin Mirzaei , Pantea Amoie , Ali Ekhterachian , Matin Mirzababaei , Babak Khalaj

Vision-and-Language Navigation (VLN) empowers agents to associate time-sequenced visual observations with corresponding instructions to make sequential decisions. However, generalization remains a persistent challenge, particularly when…

Robotics · Computer Science 2025-02-27 Zerui Li , Gengze Zhou , Haodong Hong , Yanyan Shao , Wenqi Lyu , Yanyuan Qiao , Qi Wu

We address the problem of autonomous exploration and mapping for a mobile robot using visual inputs. Exploration and mapping is a well-known and key problem in robotics, the goal of which is to enable a robot to explore a new environment…

Robotics · Computer Science 2019-01-16 Xiangyang Zhi , Xuming He , Sören Schwertfeger

Understanding and following natural language instructions while navigating through complex, real-world environments poses a significant challenge for general-purpose robots. These environments often include obstacles and pedestrians, making…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Xiwen Liang , Liang Ma , Shanshan Guo , Jianhua Han , Hang Xu , Shikui Ma , Xiaodan Liang

The academic field of learning instruction-guided visual navigation can be generally categorized into high-level category-specific search and low-level language-guided navigation, depending on the granularity of language instruction, in…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Gengze Zhou , Yicong Hong , Zun Wang , Chongyang Zhao , Mohit Bansal , Qi Wu

The role of robots in society keeps expanding, bringing with it the necessity of interacting and communicating with humans. In order to keep such interaction intuitive, we provide automatic wayfinding based on verbal navigational…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Arun Balajee Vasudevan , Dengxin Dai , Luc Van Gool

We study the challenging problem of releasing a robot in a previously unseen environment, and having it follow unconstrained natural language navigation instructions. Recent work on the task of Vision-and-Language Navigation (VLN) has…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Peter Anderson , Ayush Shrivastava , Joanne Truong , Arjun Majumdar , Devi Parikh , Dhruv Batra , Stefan Lee

Semantic navigation requires an agent to navigate toward a specified target in an unseen environment. Employing an imaginative navigation strategy that predicts future scenes before taking action, can empower the agent to find target…

Robotics · Computer Science 2025-08-12 Yue Hu , Junzhe Wu , Ruihan Xu , Hang Liu , Avery Xi , Henry X. Liu , Ram Vasudevan , Maani Ghaffari

Vision-and-Language Navigation (VLN) is a task where an agent navigates in an embodied indoor environment under human instructions. Previous works ignore the distribution of sample difficulty and we argue that this potentially degrade their…

Machine Learning · Computer Science 2021-11-16 Jiwen Zhang , Zhongyu Wei , Jianqing Fan , Jiajie Peng

The usage of automatic speech recognition (ASR) systems are becoming omnipresent ranging from personal assistant to chatbots, home, and industrial automation systems, etc. Modern robots are also equipped with ASR capabilities for…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-25 Pradip Pramanick , Chayan Sarkar

Humans have the ability to utilize visual cues, such as lip movements and visual scenes, to enhance auditory perception, particularly in noisy environments. However, current Automatic Speech Recognition (ASR) or Audio-Visual Speech…

Computation and Language · Computer Science 2025-04-11 Lakshmipathi Balaji , Karan Singla

Methods for navigation based on large-scale learning typically treat each episode as a new problem, where the agent is spawned with a clean memory in an unknown environment. While these generalization capabilities to an unknown environment…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Gianluca Monaci , Rafael S. Rezende , Romain Deffayet , Gabriela Csurka , Guillaume Bono , Hervé Déjean , Stéphane Clinchant , Christian Wolf

With the emergence of varied visual navigation tasks (e.g, image-/object-/audio-goal and vision-language navigation) that specify the target in different ways, the community has made appealing advances in training specialized agents capable…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Hanqing Wang , Wei Liang , Luc Van Gool , Wenguan Wang

Many species have evolved advanced non-visual perception while artificial systems fall behind. Radar and ultrasound complement camera-based vision but they are often too costly and complex to set up for very limited information gain. In…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Jesper Haahr Christensen , Sascha Hornauer , Stella Yu

Vision-and-Language Navigation (VLN) has recently benefited from Multimodal Large Language Models (MLLMs), enabling zero-shot navigation. While recent exploration-based zero-shot methods have shown promising results by leveraging global…

Robotics · Computer Science 2026-03-31 Jiwen Zhang , Xiangyu Shi , Siyuan Wang , Zerui Li , Zhongyu Wei , Qi Wu

Spatial audio is essential for immersive experiences, yet novel-view acoustic synthesis (NVAS) remains challenging due to complex physical phenomena such as reflection, diffraction, and material absorption. Existing methods based on…

Sound · Computer Science 2026-01-28 Congyi Fan , Jian Guan , Youtian Lin , Dongli Xu , Tong Ye , Qiaoxi Zhu , Pengming Feng , Wenwu Wang

Unmanned Aerial Vehicles (UAVs) are increasingly important in dynamic environments such as logistics transportation and disaster response. However, current tasks often rely on human operators to monitor aerial videos and make operational…

Robotics · Computer Science 2026-05-25 Fei Lin , Yonglin Tian , Tengchao Zhang , Jun Huang , Sangtian Guan , Fei-Yue Wang

Zero-shot classification is a promising paradigm to solve an applicable problem when the training classes and test classes are disjoint. Achieving this usually needs experts to externalize their domain knowledge by manually specifying a…

Human-Computer Interaction · Computer Science 2021-08-17 Shichao Jia , Zeyu Li , Nuo Chen , Jiawan Zhang

Vision-and-Language Navigation requires an embodied agent to navigate through unseen environments, guided by natural language instructions and a continuous video stream. Recent advances in VLN have been driven by the powerful semantic…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Shuang Zeng , Dekang Qi , Xinyuan Chang , Feng Xiong , Shichao Xie , Xiaolong Wu , Shiyi Liang , Mu Xu , Xing Wei , Ning Guo

Language-guided embodied navigation requires an agent to interpret object-referential instructions, search across multiple rooms, localize the referenced target, and execute reliable motion toward it. Existing systems remain limited in real…

Robotics · Computer Science 2026-03-19 Zhongyuang Liu , Min He , Shaonan Yu , Xinhang Xu , Muqing Cao , Jianping Li , Jianfei Yang , Lihua Xie