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Multimodal large language models (MLLMs) excel at 2D visual understanding but remain limited in their ability to reason about 3D space. In this work, we leverage large-scale high-quality 3D scene data with open-set annotations to introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Erik Daxberger , Nina Wenzel , David Griffiths , Haiming Gang , Justin Lazarow , Gefen Kohavi , Kai Kang , Marcin Eichner , Yinfei Yang , Afshin Dehghan , Peter Grasch

Robotic scene understanding increasingly relies on Vision-Language Models (VLMs) to generate natural language descriptions of the environment. In this work, we systematically evaluate single-view object captioning for tabletop scenes…

Robotics · Computer Science 2026-04-24 Federico Tavella , Amber Drinkwater , Angelo Cangelosi

This thesis introduces "Embodied Spatial Intelligence" to address the challenge of creating robots that can perceive and act in the real world based on natural language instructions. To bridge the gap between Large Language Models (LLMs)…

Robotics · Computer Science 2025-09-03 Jiading Fang

Recent 3D Large-Language Models (3D-LLMs) claim to understand 3D worlds, especially spatial relationships among objects. Yet, we find that simply fine-tuning a language model on text-only question-answer pairs can perform comparably or even…

Computation and Language · Computer Science 2026-03-26 Xianzheng Ma , Tao Sun , Shuai Chen , Yash Bhalgat , Jindong Gu , Angel X Chang , Iro Armeni , Iro Laina , Songyou Peng , Victor Adrian Prisacariu

Embeddings have become a pivotal means to represent complex, multi-faceted information about entities, concepts, and relationships in a condensed and useful format. Nevertheless, they often preclude direct interpretation. While downstream…

Multimodal large language models (MLLMs) combine visual and textual data for tasks such as image captioning and visual question answering. Proper uncertainty calibration is crucial, yet challenging, for reliable use in areas like healthcare…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Zijun Chen , Wenbo Hu , Guande He , Zhijie Deng , Zheng Zhang , Richang Hong

Multimodal Large Language Models (MLLMs) demonstrate a complex understanding of scenes, benefiting from large-scale and high-quality datasets. Most existing caption datasets lack the ground locations and relations for visual entities.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Xiangtai Li , Tao Zhang , Yanwei Li , Haobo Yuan , Shihao Chen , Yikang Zhou , Jiahao Meng , Yueyi Sun , Shilin Xu , Lu Qi , Tianheng Cheng , Yi Lin , Zilong Huang , Wenhao Huang , Jiashi Feng , Guang Shi

Spatial Reasoning is an important component of human cognition and is an area in which the latest Vision-language models (VLMs) show signs of difficulty. The current analysis works use image captioning tasks and visual question answering.…

Computation and Language · Computer Science 2025-11-11 Akshar Tumu , Varad Shinde , Parisa Kordjamshidi

Large Multimodal Models (LMMs) have achieved remarkable progress in general-purpose vision--language understanding, yet they remain limited in tasks requiring precise object-level grounding, fine-grained spatial reasoning, and controllable…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Yuqian Yuan , Wenqiao Zhang , Juekai Lin , Yu Zhong , Mingjian Gao , Binhe Yu , Yunqi Cao , Wentong Li , Yueting Zhuang , Beng Chin Ooi

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

Multimodal large language models (MLLMs) have made remarkable progress in either temporal or spatial localization. However, they struggle to perform spatio-temporal video grounding. This limitation stems from two major challenges. Firstly,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Jiankang Wang , Zhihan Zhang , Zhihang Liu , Yang Li , Jiannan Ge , Hongtao Xie , Yongdong Zhang

The visual commonsense reasoning (VCR) task is to choose an answer and provide a justifying rationale based on the given image and textural question. Representative works first recognize objects in images and then associate them with key…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Jian Zhu , Hanli Wang , Miaojing Shi

Recent advances in large vision-language models (VLMs) have shown significant promise for 3D scene understanding. Existing VLM-based approaches typically align 3D scene features with the VLM's embedding space. However, this implicit…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Chen Li , Eric Peh , Basura Fernando

3D Visual Grounding (3DVG) focuses on locating objects in 3D scenes based on natural language descriptions, serving as a fundamental task for embodied AI and robotics. Recent advances in Multi-modal Large Language Models (MLLMs) have…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Beining Xu , Siting Zhu , Zhao Jin , Junxian Li , Hesheng Wang

Recent advancements in Multimodal Large Language Models (MLLMs) have significantly enhanced performance on 2D visual tasks. However, improving their spatial intelligence remains a challenge. Existing 3D MLLMs always rely on additional 3D or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Diankun Wu , Fangfu Liu , Yi-Hsin Hung , Yueqi Duan

The ability to understand and reason about spatial relationships between objects in images is an important component of visual reasoning. This skill rests on the ability to recognize and localize objects of interest and determine their…

Computation and Language · Computer Science 2024-10-14 Navid Rajabi , Jana Kosecka

Spatial relation reasoning is a crucial task for multimodal large language models (MLLMs) to understand the objective world. However, current benchmarks have issues like relying on bounding boxes, ignoring perspective substitutions, or…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Jingping Liu , Ziyan Liu , Zhedong Cen , Yan Zhou , Yinan Zou , Weiyan Zhang , Haiyun Jiang , Tong Ruan

The fusion of language and vision in large vision-language models (LVLMs) has revolutionized deep learning-based object detection by enhancing adaptability, contextual reasoning, and generalization beyond traditional architectures. This…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Ranjan Sapkota , Manoj Karkee

For robots to understand human instructions and perform meaningful tasks in the near future, it is important to develop learned models that comprehend referential language to identify common objects in real-world 3D scenes. In this paper,…

Robotics · Computer Science 2021-11-08 Junha Roh , Karthik Desingh , Ali Farhadi , Dieter Fox

Spatial reasoning is a fundamental aspect of human cognition, enabling intuitive understanding and manipulation of objects in three-dimensional space. While foundation models demonstrate remarkable performance on some benchmarks, they still…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Fan-Yun Sun , Weiyu Liu , Siyi Gu , Dylan Lim , Goutam Bhat , Federico Tombari , Manling Li , Nick Haber , Jiajun Wu