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Recently, Multimodal Large Language Models (MLLMs) and Vision Language Models (VLMs) have shown great promise in language-guided perceptual tasks such as recognition, segmentation, and object detection. However, their effectiveness in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Xu Cao , Yifan Shen , Bolin Lai , Wenqian Ye , Yunsheng Ma , Joerg Heintz , Jintai Chen , Meihuan Huang , Jianguo Cao , Aidong Zhang , James M. Rehg

Multimodal Large Language Models (MLLMs) have become a powerful tool for integrating visual and textual information. Despite their exceptional performance on visual understanding benchmarks, measuring their ability to reason abstractly…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Nilay Yilmaz , Maitreya Patel , Yiran Lawrence Luo , Tejas Gokhale , Chitta Baral , Suren Jayasuriya , Yezhou Yang

Multimodal large language models (LLMs) have made rapid progress in visual understanding, yet their extension from images to videos often reduces to a naive concatenation of frame tokens. In this work, we investigate what video finetuning…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Ruiqi Yang , Tian Yun , Zihan Wang , Ellie Pavlick

Understanding the physical world - governed by laws of motion, spatial relations, and causality - poses a fundamental challenge for multimodal large language models (MLLMs). While recent advances such as OpenAI o3 and GPT-4o demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Zhuobai Dong , Junchao Yi , Ziyuan Zheng , Haochen Han , Xiangxi Zheng , Alex Jinpeng Wang , Fangming Liu , Linjie Li

Enhancing the multimodal reasoning capabilities of Multimodal Large Language Models (MLLMs) is a challenging task that has attracted increasing attention in the community. Recently, several studies have applied Reinforcement Learning with…

Machine Learning · Computer Science 2026-03-04 Tong Xiao , Xin Xu , Zhenya Huang , Hongyu Gao , Quan Liu , Qi Liu , Enhong Chen

Large Vision-Language Models (LVLMs) have advanced considerably, intertwining visual recognition and language understanding to generate content that is not only coherent but also contextually attuned. Despite their success, LVLMs still…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Sicong Leng , Hang Zhang , Guanzheng Chen , Xin Li , Shijian Lu , Chunyan Miao , Lidong Bing

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities in understanding and describing visual content, achieving state-of-the-art performance across various vision-language tasks. However, these models often generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Kazi Hasan Ibn Arif , Sajib Acharjee Dip , Khizar Hussain , Lang Zhang , Chris Thomas

Recent advances in vision-language models (VLMs) emphasize long chain-of-thought reasoning; yet, we find that their performance on visual tasks is primarily limited by a lack of visual perception as opposed to reasoning itself. In this…

Computation and Language · Computer Science 2026-05-20 Juncheng Wu , Hardy Chen , Haoqin Tu , Xianfeng Tang , Freda Shi , Hui Liu , Hanqing Lu , Cihang Xie , Yuyin Zhou

Large vision-language models (VLMs) fine-tuned on specialized visual instruction-following data have exhibited impressive language reasoning capabilities across various scenarios. However, this fine-tuning paradigm may not be able to…

Artificial Intelligence · Computer Science 2024-10-10 Yuexiang Zhai , Hao Bai , Zipeng Lin , Jiayi Pan , Shengbang Tong , Yifei Zhou , Alane Suhr , Saining Xie , Yann LeCun , Yi Ma , Sergey Levine

Test-time compute has empowered multimodal large language models to generate extended reasoning chains, yielding strong performance on tasks such as multimodal math reasoning. However, this improved reasoning ability often comes with…

Computation and Language · Computer Science 2025-06-23 Chengzhi Liu , Zhongxing Xu , Qingyue Wei , Juncheng Wu , James Zou , Xin Eric Wang , Yuyin Zhou , Sheng Liu

Vision-Language Models (VLMs) increasingly power high-stakes applications, from medical imaging to autonomous systems, yet they routinely hallucinate, confidently describing content not present in the input. We investigate the root causes…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Harshvardhan Saini , Samyak Jha , Yiming Tang , Dianbo Liu

Large Vision-Language Models (LVLMs) integrate image encoders with Large Language Models (LLMs) to process multi-modal inputs and perform complex visual tasks. However, they often generate hallucinations by describing non-existent objects…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Yaqi Sun , Kyohei Atarashi , Koh Takeuchi , Hisashi Kashima

Existing Large Vision-Language Models (LVLMs) primarily align image features of vision encoder with Large Language Models (LLMs) to leverage their superior text generation capabilities. However, the scale disparity between vision encoder…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Shi Liu , Kecheng Zheng , Wei Chen

With advances in multimodal research and deep learning, Multimodal Large Language Models (MLLMs) have emerged as a powerful paradigm for a wide range of multimodal tasks. As a core problem in vision-language research, Visual Question…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Quanxing Xu , Ling Zhou , Xian Zhong , Xiaohua Huang , Rubing Huang , Chia-Wen Lin

Existing Large Vision-Language Models (LVLMs) exhibit insufficient visual attention, leading to hallucinations. To alleviate this problem, some previous studies adjust and amplify visual attention. These methods present a limitation that…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Jingyi Wang , Fei Li , Rujie Liu

Recent advancements in Large Language Models (LLMs) and their multimodal extensions (MLLMs) have substantially enhanced machine reasoning across diverse tasks. However, these models predominantly rely on pure text as the medium for both…

Machine Learning · Computer Science 2026-02-23 Yi Xu , Chengzu Li , Han Zhou , Xingchen Wan , Caiqi Zhang , Anna Korhonen , Ivan Vulić

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

The hallucination of large multimodal models (LMMs), providing responses that appear correct but are actually incorrect, limits their reliability and applicability. This paper aims to study the hallucination problem of LMMs in video…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Hongcheng Gao , Jiashu Qu , Jingyi Tang , Baolong Bi , Yue Liu , Hongyu Chen , Li Liang , Li Su , Qingming Huang

Large Vision-Language Models (LVLMs) have demonstrated impressive multimodal abilities but remain prone to multilingual object hallucination, with a higher likelihood of generating responses inconsistent with the visual input when utilizing…

Computation and Language · Computer Science 2025-06-16 Zekai Ye , Qiming Li , Xiaocheng Feng , Libo Qin , Yichong Huang , Baohang Li , Kui Jiang , Yang Xiang , Zhirui Zhang , Yunfei Lu , Duyu Tang , Dandan Tu , Bing Qin

Visual attention serves as the primary mechanism through which MLLMs interpret visual information; however, its limited localization capability often leads to hallucinations. We observe that although MLLMs can accurately extract visual…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Jianfei Zhao , Feng Zhang , Xin Sun , Chong Feng , Zhixing Tan