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Object Goal Navigation-requiring an agent to locate a specific object in an unseen environment-remains a core challenge in embodied AI. Although recent progress in Vision-Language Model (VLM)-based agents has demonstrated promising…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Dujun Nie , Xianda Guo , Yiqun Duan , Ruijun Zhang , Long Chen

Natural language instructions for visual navigation often use scene descriptions (e.g., "bedroom") and object references (e.g., "green chairs") to provide a breadcrumb trail to a goal location. This work presents a transformer-based…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Abhinav Moudgil , Arjun Majumdar , Harsh Agrawal , Stefan Lee , Dhruv Batra

Integration of Large Language Models (LLMs) into visual domain tasks, resulting in visual-LLMs (V-LLMs), has enabled exceptional performance in vision-language tasks, particularly for visual question answering (VQA). However, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Kanchana Ranasinghe , Satya Narayan Shukla , Omid Poursaeed , Michael S. Ryoo , Tsung-Yu Lin

Real-world deployment of Vision-and-Language Navigation (VLN) agents is constrained by the scarcity of reliable supervision after offline training. While recent adaptation methods attempt to mitigate distribution shifts via…

Artificial Intelligence · Computer Science 2026-02-05 Yongqiang Yu , Xuhui Li , Hazza Mahmood , Jinxing Zhou , Haodong Hong , Longtao Jiang , Zhiqiang Xu , Qi Wu , Xiaojun Chang

Vision-Language-Action (VLA) models offer promising capabilities for autonomous driving through multimodal understanding. However, their utilization in safety-critical scenarios is constrained by inherent limitations, including imprecise…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Yiru Wang , Zichong Gu , Yu Gao , Anqing Jiang , Zhigang Sun , Shuo Wang , Yuwen Heng , Hao Sun

Robust local navigation in unstructured and dynamic environments remains a significant challenge for humanoid robots, requiring a delicate balance between long-range navigation targets and immediate motion stability. In this paper, we…

Robotics · Computer Science 2026-01-21 Yang Zhang , Jianming Ma , Liyun Yan , Zhanxiang Cao , Yazhou Zhang , Haoyang Li , Yue Gao

Inspired by the general Vision-and-Language Navigation (VLN) task, aerial VLN has attracted widespread attention, owing to its significant practical value in applications such as logistics delivery and urban inspection. However, existing…

Robotics · Computer Science 2026-04-13 Chengjie Fan , Cong Pan , Zijian Liu , Ningzhong Liu , Jie Qin

In the pursuit of robust and generalizable environment perception and language understanding, the ubiquitous challenge of dataset bias continues to plague vision-and-language navigation (VLN) agents, hindering their performance in unseen…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Liuyi Wang , Zongtao He , Ronghao Dang , Mengjiao Shen , Chengju Liu , Qijun Chen

Vision-and-language navigation (VLN) is a multimodal task where an agent follows natural language instructions and navigates in visual environments. Multiple setups have been proposed, and researchers apply new model architectures or…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Wanrong Zhu , Yuankai Qi , Pradyumna Narayana , Kazoo Sone , Sugato Basu , Xin Eric Wang , Qi Wu , Miguel Eckstein , William Yang Wang

Vision-Language Models (VLMs) excel at zero-shot inference but often degrade under test-time domain shifts. For this reason, episodic test-time adaptation strategies have recently emerged as powerful techniques for adapting VLMs to a single…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Konstantinos M. Dafnis , Dimitris N. Metaxas

In audio-visual navigation (AVN) tasks, an embodied agent must autonomously localize a sound source in unknown and complex 3D environments based on audio-visual signals. Existing methods often rely on static modality fusion strategies and…

Artificial Intelligence · Computer Science 2025-09-23 Jia Li , Yinfeng Yu , Liejun Wang , Fuchun Sun , Wendong Zheng

Scene Text Recognition (STR) remains challenging due to real-world complexities, where decoupled visual-linguistic optimization in existing frameworks amplifies error propagation through cross-modal misalignment. Visual encoders exhibit…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Lixu Sun , Nurmemet Yolwas , Wushour Silamu

Aerial vision-and-language navigation (VLN), requiring drones to interpret natural language instructions and navigate complex urban environments, emerges as a critical embodied AI challenge that bridges human-robot interaction, 3D spatial…

Robotics · Computer Science 2025-12-29 Weichen Zhang , Chen Gao , Shiquan Yu , Ruiying Peng , Baining Zhao , Qian Zhang , Jinqiang Cui , Xinlei Chen , Yong Li

Vision-and-Language Navigation (VLN) requires an agent to ground language instructions to its own movement within a visual environment. While state-of-the-art methods leverage the reasoning capabilities of Vision-Language Models (VLMs) for…

Achieving human-level performance in Vision-and-Language Navigation (VLN) requires an embodied agent to jointly understand multimodal instructions and visual-spatial context while reasoning over long action sequences. Recent works, such as…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Jing Zuo , Lingzhou Mu , Fan Jiang , Chengcheng Ma , Mu Xu , Yonggang Qi

Recent advances in Multimodal Large Language Models (MLLMs) have significantly advanced video understanding tasks, yet challenges remain in efficiently compressing visual tokens while preserving spatiotemporal interactions. Existing…

Artificial Intelligence · Computer Science 2026-05-22 Bingjun Luo , Tony Wang , Hanqi Chen , Xinpeng Ding

Vision-and-Language Navigation (VLN) poses significant challenges for agents to interpret natural language instructions and navigate complex 3D environments. While recent progress has been driven by large-scale pre-training and data…

Artificial Intelligence · Computer Science 2026-05-14 Tianyi Ma , Yue Zhang , Zehao Wang , Parisa Kordjamshidi

In this work we study Weakly Supervised Spatio-Temporal Video Grounding (WSTVG), a challenging task of localizing subjects spatio-temporally in videos using only textual queries and no bounding box supervision. Inspired by recent advances…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Aaryan Garg , Akash Kumar , Yogesh S Rawat

Video Large Language Models (Video-LLMs) have recently shown strong performance in basic video understanding tasks, such as captioning and coarse-grained question answering, but struggle with compositional reasoning that requires multi-step…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Haiyi Qiu , Minghe Gao , Long Qian , Kaihang Pan , Qifan Yu , Juncheng Li , Wenjie Wang , Siliang Tang , Yueting Zhuang , Tat-Seng Chua

We introduce STRIVE (SpatioTemporal Reinforcement with Importance-aware Variant Exploration), a structured reinforcement learning framework for video question answering. While group-based policy optimization methods have shown promise in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Emad Bahrami , Olga Zatsarynna , Parth Pathak , Sunando Sengupta , Juergen Gall , Mohsen Fayyaz