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Understanding 3D scenes goes beyond simply recognizing objects; it requires reasoning about the spatial and semantic relationships between them. Current 3D scene-language models often struggle with this relational understanding,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Jintang Xue , Ganning Zhao , Jie-En Yao , Hong-En Chen , Yue Hu , Meida Chen , Suya You , C. -C. Jay Kuo

Real-world 3D scene-level scans offer realism and can enable better real-world generalizability for downstream applications. However, challenges such as data volume, diverse annotation formats, and tool compatibility limit their use. This…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Anna-Maria Halacheva , Jan-Nico Zaech , Sombit Dey , Luc Van Gool , Danda Pani Paudel

While Multimodal Large Language Models (MLLMs) have achieved remarkable success in 2D visual understanding, their ability to reason about 3D space remains limited. To address this gap, we introduce geometrically referenced 3D scene…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Jiangye Yuan , Gowri Kumar , Baoyuan Wang

The recent advancements introduced by Large Language Models (LLMs) have transformed how Artificial Intelligence (AI) can support complex, real world tasks, pushing research outside the text boundaries towards multi modal contexts and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Federico Toschi , Nicolò Brunello , Andrea Sassella , Vincenzo Scotti , Mark James Carman

Robot vision has greatly benefited from advancements in multimodal fusion techniques and vision-language models (VLMs). We adopt a task-oriented perspective to systematically review the applications and advancements of multimodal fusion…

Although Multimodal Large Language Models have achieved remarkable progress, they still struggle with complex 3D spatial reasoning due to the reliance on 2D visual priors. Existing approaches typically mitigate this limitation either…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Jiahua Chen , Qihong Tang , Weinong Wang , Qi Fan

While multi-modality large language models excel in object-centric or indoor scenarios, scaling them to 3D city-scale environments remains a formidable challenge. To bridge this gap, we propose 3DCity-LLM, a unified framework designed for…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Yiping Chen , Jinpeng Li , Wenyu Ke , Yang Luo , Jie Ouyang , Zhongjie He , Li Liu , Hongchao Fan , Hao Wu

In this study, we present IL3D, a large-scale dataset meticulously designed for large language model (LLM)-driven 3D scene generation, addressing the pressing demand for diverse, high-quality training data in indoor layout design.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Wenxu Zhou , Kaixuan Nie , Hang Du , Dong Yin , Wei Huang , Siqiang Guo , Xiaobo Zhang , Pengbo Hu

Human vision is capable of transforming two-dimensional observations into an egocentric three-dimensional scene understanding, which underpins the ability to translate complex scenes and exhibit adaptive behaviors. This capability, however,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Pei Liu , Hongliang Lu , Haichao Liu , Haipeng Liu , Xin Liu , Ruoyu Yao , Shengbo Eben Li , Jun Ma

Modern Large Multimodal Models (LMMs) have demonstrated extraordinary ability in static image and single-state spatial-temporal understanding. However, their capacity to comprehend the dynamic changes of objects within a shared spatial…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Kewei Wei , Bocheng Hu , Jie Cao , Xiaohan Chen , Zhengxi Lu , Wubing Xia , Weili Xu , Jiaao Wu , Junchen He , Mingyu Jia , Ciyun Zhao , Ye Sun , Yizhi Li , Zhonghan Zhao , Jian Zhang , Gaoang Wang

Despite the remarkable progress of Multimodal Large Language Models (MLLMs) in 2D vision-language tasks, their application to complex 3D scene manipulation remains underexplored. In this paper, we bridge this critical gap by tackling three…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Zhengfei Kuang , Rui Lin , Long Zhao , Gordon Wetzstein , Saining Xie , Sanghyun Woo

Embedding a language field in a 3D representation enables richer semantic understanding of spatial environments by linking geometry with descriptive meaning. This allows for a more intuitive human-computer interaction, enabling querying or…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Shai Krakovsky , Gal Fiebelman , Sagie Benaim , Hadar Averbuch-Elor

Open-vocabulary 3D visual grounding and reasoning aim to localize objects in a scene based on implicit language descriptions, even when they are occluded. This ability is crucial for tasks such as vision-language navigation and autonomous…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Zhenyang Liu , Yikai Wang , Sixiao Zheng , Tongying Pan , Longfei Liang , Yanwei Fu , Xiangyang Xue

The rapid advancement of multimodal large language models (MLLMs) offers new opportunities for complex scientific challenges, yet their application in earth science-especially at the graduate level-remains underexplored due to a lack of…

Artificial Intelligence · Computer Science 2026-05-05 Xiangyu Zhao , Wanghan Xu , Bo Liu , Yuhao Zhou , Fenghua Ling , Ben Fei , Xiaoyu Yue , Lei Bai , Wenlong Zhang , Xiao-Ming Wu

Reasoning segmentation aims to segment target objects in complex scenes based on human intent and spatial reasoning. While recent multimodal large language models (MLLMs) have demonstrated impressive 2D image reasoning segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Jiaxin Huang , Runnan Chen , Ziwen Li , Zhengqing Gao , Xiao He , Yandong Guo , Mingming Gong , Tongliang Liu

The rapid advancement of Multimodal Large Language Models (MLLMs) has significantly impacted various multimodal tasks. However, these models face challenges in tasks that require spatial understanding within 3D environments. Efforts to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Duo Zheng , Shijia Huang , Liwei Wang

Recent advances in LVLMs have improved vision-language understanding, but they still struggle with spatial perception, limiting their ability to reason about complex 3D scenes. Unlike previous approaches that incorporate 3D representations…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Jiahui Zhang , Yurui Chen , Yanpeng Zhou , Yueming Xu , Ze Huang , Jilin Mei , Junhui Chen , Yu-Jie Yuan , Xinyue Cai , Guowei Huang , Xingyue Quan , Hang Xu , Li Zhang

As multimodal language models advance, their application to 3D scene understanding is a fast-growing frontier, driving the development of 3D Vision-Language Models (VLMs). Current methods show strong dependence on object detectors,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Anna-Maria Halacheva , Jan-Nico Zaech , Xi Wang , Danda Pani Paudel , Luc Van Gool

Large language models have emerged as a promising approach towards achieving general-purpose AI agents. The thriving open-source LLM community has greatly accelerated the development of agents that support human-machine dialogue interaction…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Zhenfei Yin , Jiong Wang , Jianjian Cao , Zhelun Shi , Dingning Liu , Mukai Li , Lu Sheng , Lei Bai , Xiaoshui Huang , Zhiyong Wang , Jing Shao , Wanli Ouyang

Multi-modal Large Language Models (MLLMs) exhibit impressive capabilities in 2D tasks, yet encounter challenges in discerning the spatial positions, interrelations, and causal logic in scenes when transitioning from 2D to 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Haomiao Xiong , Yunzhi Zhuge , Jiawen Zhu , Lu Zhang , Huchuan Lu