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Vision-language Navigation (VLN) tasks require an agent to navigate step-by-step while perceiving the visual observations and comprehending a natural language instruction. Large data bias, which is caused by the disparity ratio between the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Chong Liu , Fengda Zhu , Xiaojun Chang , Xiaodan Liang , Zongyuan Ge , Yi-Dong Shen

In vision-and-language navigation (VLN), an embodied agent is required to navigate in realistic 3D environments following natural language instructions. One major bottleneck for existing VLN approaches is the lack of sufficient training…

Computer Vision and Pattern Recognition · Computer Science 2022-08-26 Shizhe Chen , Pierre-Louis Guhur , Makarand Tapaswi , Cordelia Schmid , Ivan Laptev

Vision-and-Language Navigation (VLN) requires an embodied agent to traverse complex environments by following natural language instructions, demanding accurate alignment between visual observations and linguistic guidance. Despite recent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Yaohua Liu , Xinyuan Song , Yunfu Deng , Yifan Xie , Binkai Ou , Yan Zhong

Guiding users through complex procedural plans is an inherently multimodal task in which having visually illustrated plan steps is crucial to deliver an effective plan guidance. However, existing works on plan-following language models…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Diogo Glória-Silva , David Semedo , João Magalhães

The advancement of autonomous driving technologies necessitates increasingly sophisticated methods for understanding and predicting real-world scenarios. Vision language models (VLMs) are emerging as revolutionary tools with significant…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Yongjie Fu , Anmol Jain , Xuan Di , Xu Chen , Zhaobin Mo

Multimodal large language models (MLLMs) have achieved remarkable progress, yet the object hallucination remains a critical challenge for reliable deployment. In this paper, we present an in-depth analysis of instruction token embeddings…

Machine Learning · Computer Science 2026-05-13 Runhe Lai , Xinhua Lu , Yanqi Wu , Jinlun Ye , Weijiang Yu , Ruixuan Wang

Vision-and-language navigation (VLN) agents are trained to navigate in real-world environments by following natural language instructions. A major challenge in VLN is the limited availability of training data, which hinders the models'…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Zi-Yi Dou , Feng Gao , Nanyun Peng

The acquisition of large-scale and diverse demonstration data are essential for improving robotic imitation learning generalization. However, generating such data for complex manipulations is challenging in real-world settings. We introduce…

Robotics · Computer Science 2025-03-18 Wensheng Wang , Ning Tan

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-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

In this paper, we propose a training-free framework for vision-and-language navigation (VLN). Existing zero-shot VLN methods are mainly designed for discrete environments or involve unsupervised training in continuous simulator…

Robotics · Computer Science 2025-09-15 Hang Yin , Haoyu Wei , Xiuwei Xu , Wenxuan Guo , Jie Zhou , Jiwen Lu

In this paper, a method for generating a map from path information described using natural language (textual path) is proposed. In recent years, robotics research mainly focus on vision-and-language navigation (VLN), a navigation task based…

Robotics · Computer Science 2024-08-21 Hideki Deguchi , Kazuki Shibata , Shun Taguchi

Large vision language models (LVLMs) have demonstrated impressive performance across a wide range of tasks. These capabilities largely stem from visual instruction tuning, which fine-tunes models on datasets consisting of curated…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Myeongkyun Kang , Soopil Kim , Xiaoxiao Li , Sang Hyun Park

With the rise of multimodal applications, instruction data has become critical for training multimodal language models capable of understanding complex image-based queries. Existing practices rely on powerful but costly large language…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Jieyu Zhang , Le Xue , Linxin Song , Jun Wang , Weikai Huang , Manli Shu , An Yan , Zixian Ma , Juan Carlos Niebles , Silvio Savarese , Caiming Xiong , Zeyuan Chen , Ranjay Krishna , Ran Xu

Current video generation models produce physically inconsistent motion that violates real-world dynamics. We propose TrajVLM-Gen, a two-stage framework for physics-aware image-to-video generation. First, we employ a Vision Language Model to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Fan Yang , Zhiyang Chen , Yousong Zhu , Xin Li , Jinqiao Wang

Automatically generating training supervision for embodied tasks is crucial, as manual designing is tedious and not scalable. While prior works use large language models (LLMs) or vision-language models (VLMs) to generate rewards, these…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Xiaowen Qiu , Yian Wang , Jiting Cai , Zhehuan Chen , Chunru Lin , Tsun-Hsuan Wang , Chuang Gan

Algorithm Visualization (AV) helps students build mental models by animating algorithm execution states. Recent LLM-based systems such as CODE2VIDEO generate AV videos in an end-to-end manner. However, this paradigm requires the system to…

Artificial Intelligence · Computer Science 2026-05-13 Kunpeng Liao , Yuexiao Ma , Yisheng Lin , Hualin Zeng , Xiawu Zheng , Rongrong Ji

An elusive goal in navigation research is to build an intelligent agent that can understand multimodal instructions including natural language and image, and perform useful navigation. To achieve this, we study a widely useful category of…

Vision-and-Language Navigation (VLN) is a challenging task that requires a robot to navigate in photo-realistic environments with human natural language promptings. Recent studies aim to handle this task by constructing the semantic spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Jiacui Huang , Hongtao Zhang , Mingbo Zhao , Zhou Wu

Multistep instructions, such as recipes and how-to guides, greatly benefit from visual aids, such as a series of images that accompany the instruction steps. While Large Language Models (LLMs) have become adept at generating coherent…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 João Bordalo , Vasco Ramos , Rodrigo Valério , Diogo Glória-Silva , Yonatan Bitton , Michal Yarom , Idan Szpektor , Joao Magalhaes