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While contemporary Vision-Language Models (VLMs) excel at 2D visual understanding, they remain constrained by a passive, 2D-centric paradigm that severely limits genuine 3D spatial reasoning. To bridge this gap, we introduce Think3D, a…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Zaibin Zhang , Yuhan Wu , Lianjie Jia , Yifan Wang , Zhongbo Zhang , Yijiang Li , Binghao Ran , Fuxi Zhang , Zhuohan Sun , Zhenfei Yin , Lijun Wang , Huchuan Lu

3D Visual Grounding (3DVG) aims to localize target objects within a 3D scene based on natural language queries. To alleviate the reliance on costly 3D training data, recent studies have explored zero-shot 3DVG by leveraging the extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Zhao Jin , Rong-Cheng Tu , Jingyi Liao , Wenhao Sun , Xiao Luo , Shunyu Liu , Dacheng Tao

The rapid proliferation of Large Language Models (LLMs) has led to a fragmented and inefficient ecosystem, a state of ``model lock-in'' where seamlessly integrating novel models remains a significant bottleneck. Current routing frameworks…

Machine Learning · Computer Science 2026-01-13 Cheng Yan , Wuyang Zhang , Zhiyuan Ning , Fan Xu , Ziyang Tao , Lu Zhang , Bing Yin , Yanyong Zhang

With the development of generative artificial intelligence and instruction tuning techniques, multimodal large language models (MLLMs) have made impressive progress on general reasoning tasks. Benefiting from the chain-of-thought (CoT)…

Machine Learning · Computer Science 2025-07-03 Junjie Zhou , Yingli Zuo , Shichang Feng , Peng Wan , Qi Zhu , Daoqiang Zhang , Wei Shao

In recent years, video question answering based on multimodal large language models (MLLM) has garnered considerable attention, due to the benefits from the substantial advancements in LLMs. However, these models have a notable deficiency…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Jinglei Zhang , Yuanfan Guo , Rolandos Alexandros Potamias , Jiankang Deng , Hang Xu , Chao Ma

Spatial reasoning is central to navigation and robotics, yet measuring model capabilities on these tasks remains difficult. Existing benchmarks evaluate models in a one-shot setting, requiring full solution generation in a single response,…

Artificial Intelligence · Computer Science 2026-04-13 Lars Benedikt Kaesberg , Tianyu Yang , Niklas Bauer , Terry Ruas , Jan Philip Wahle , Bela Gipp

Recent advancements in Video Question Answering (VideoQA) have introduced LLM-based agents, modular frameworks, and procedural solutions, yielding promising results. These systems use dynamic agents and memory-based mechanisms to break down…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Tony Montes , Fernando Lozano

Despite impressive high-level video comprehension, multimodal language models struggle with spatial reasoning across time and space. While current spatial training approaches rely on real-world video data, obtaining diverse footage with…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Ellis Brown , Arijit Ray , Ranjay Krishna , Ross Girshick , Rob Fergus , Saining Xie

Despite the remarkable successes of large language models (LLMs), the underlying Transformer architecture has inherent limitations in handling complex reasoning tasks. Chain-of-thought (CoT) prompting has emerged as a practical workaround,…

Computation and Language · Computer Science 2025-06-03 Xiang Zhang , Juntai Cao , Jiaqi Wei , Chenyu You , Dujian Ding

Trajectory-Guided image-to-video (I2V) generation aims to synthesize videos that adhere to user-specified motion instructions. Existing methods typically rely on computationally expensive fine-tuning on scarce annotated datasets. Although…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Ruicheng Zhang , Jun Zhou , Zunnan Xu , Zihao Liu , Jiehui Huang , Mingyang Zhang , Yu Sun , Xiu Li

Spatial reasoning remains a critical yet underdeveloped capability in existing vision-language models (VLMs), especially for Spatial Visual Question Answering (Spatial VQA) tasks that require understanding relative positions, distances, and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Peiyao Wang , Haibin Ling

Multi-modal Large Language Models (MLLMs) have demonstrated strong capabilities in general-purpose perception and reasoning, but they still struggle with tasks that require spatial understanding of the 3D world. To address this, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Zhanpeng Luo , Ce Zhang , Silong Yong , Cunxi Dai , Qianwei Wang , Haoxi Ran , Guanya Shi , Katia Sycara , Yaqi Xie

Vision-language models (VLMs) have shown impressive zero- and few-shot performance on real-world visual question answering (VQA) benchmarks, alluding to their capabilities as visual reasoning engines. However, the benchmarks being used…

Computation and Language · Computer Science 2024-09-04 Aishik Nagar , Shantanu Jaiswal , Cheston Tan

We present SpatialPrompt, an Extended Reality(XR) system that turns spatial sketches into executable constraints for controllable 3D generation. Users draw rough structures with a 3D pen and add voice prompts for semantic and stylistic…

Human-Computer Interaction · Computer Science 2026-05-11 Yichen Andy Yu , Wanru Li , Qiaoran Wang , Jymon Ross , Gavin Johnson , Mandy Lui , Qiao Jin

Worldwide image geolocalization aims to predict precise GPS coordinates for images captured anywhere on Earth, which is challenging due to the large visual and geographic diversity. Recent methods mainly follow two paradigms:…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Pengyue Jia , Derong Xu , Yingyi Zhang , Xiaopeng Li , Wenlin Zhang , Yi Wen , Yuanshao Zhu , Xiangyu Zhao

Deployable service and delivery robots struggle to navigate multi-floor buildings to reach object goals, as existing systems fail due to single-floor assumptions and requirements for offline, globally consistent maps. Multi-floor…

Vision-Language Navigation (VLN) approaches have currently followed two primary paradigms: the end-to-end Vision-Language Model (VLM) policy fine-tuned on navigation trajectories to directly predict actions, and the zero-shot modular…

Robotics · Computer Science 2026-05-19 Jingzhi Huang , Junkai Huang , Wenxuan Song , Haoyang Yang , Hailong Huang , Haoang Li , Yi Wang

Zero-shot Visual Question Answering (VQA) is a prominent vision-language task that examines both the visual and textual understanding capability of systems in the absence of training data. Recently, by converting the images into captions,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-16 Yunshi Lan , Xiang Li , Xin Liu , Yang Li , Wei Qin , Weining Qian

Neural combinatorial optimization (NCO) is a promising learning-based approach to solving various vehicle routing problems without much manual algorithm design. However, the current NCO methods mainly focus on the in-distribution…

Machine Learning · Computer Science 2024-05-22 Fei Liu , Xi Lin , Weiduo Liao , Zhenkun Wang , Qingfu Zhang , Xialiang Tong , Mingxuan Yuan

Multimodal Reasoning Models (MRMs) leveraging Chain-of-Thought (CoT) based thinking have revolutionized mathematical and logical problem-solving. However, we show that this paradigm struggles with generalized spatial intelligence. We…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Sai Srinivas Kancheti , Aditya Sanjiv Kanade , Vineeth N. Balasubramanian , Tanuja Ganu