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Current video avatar generation methods excel at identity preservation and motion alignment but lack genuine agency, they cannot autonomously pursue long-term goals through adaptive environmental interaction. We address this by introducing…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Xuanhua He , Tianyu Yang , Ke Cao , Ruiqi Wu , Cheng Meng , Yong Zhang , Zhuoliang Kang , Xiaoming Wei , Qifeng Chen

LLM-driven multi-agent frameworks address complex reasoning tasks through multi-role collaboration. However, existing approaches often suffer from reasoning instability, where individual agent errors are amplified through collaboration,…

Artificial Intelligence · Computer Science 2026-04-20 Haoyu Bian , Chaoning Zhang , Jiaquan Zhang , Xingyao Li , Yuanfang Guo , Wei Dong , Yang Yang

Recent progress in multimodal large language models (MLLMs) has demonstrated promising performance on medical benchmarks and in preliminary trials as clinical assistants. Yet, our pilot audit of diagnostic cases uncovers a critical failure…

Artificial Intelligence · Computer Science 2025-09-30 Hongjun Liu , Yinghao Zhu , Yuhui Wang , Yitao Long , Zeyu Lai , Lequan Yu , Chen Zhao

Vision-Language Models (VLMs) frequently "hallucinate" - generate plausible yet factually incorrect statements - posing a critical barrier to their trustworthy deployment. In this work, we propose a new paradigm for diagnosing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Lexiang Xiong , Qi Li , Jingwen Ye , Xinchao Wang

Language agents powered by large language models (LLMs) have demonstrated remarkable capabilities in understanding, reasoning, and executing complex tasks. However, developing robust agents presents significant challenges: substantial…

Computation and Language · Computer Science 2025-06-02 Qianqian Zhang , Jiajia Liao , Heting Ying , Yibo Ma , Haozhan Shen , Jingcheng Li , Peng Liu , Lu Zhang , Chunxin Fang , Kyusong Lee , Ruochen Xu , Tiancheng Zhao

Multimodal Large Language Models (MLLMs) excel at descriptive tasks within images but often struggle with precise object localization, a critical element for reliable visual interpretation. In contrast, traditional object detection models…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Jingru Yang , Huan Yu , Yang Jingxin , Chentianye Xu , Yin Biao , Yu Sun , Shengfeng He

In clinical decision-making, predictive models face a persistent trade-off: accurate models are often opaque "black boxes," while interpretable methods frequently lack predictive precision or statistical grounding. In this paper, we…

Artificial Intelligence · Computer Science 2026-02-10 Zijian Shao , Haiyang Shen , Mugeng Liu , Gecheng Fu , Yaoqi Guo , Yanfeng Wang , Yun Ma

Retrieval-Augmented Generation (RAG) aims to mitigate hallucinations in large language models (LLMs) by grounding responses in retrieved documents. Yet, RAG-based LLMs still hallucinate even when provided with correct and sufficient…

Computation and Language · Computer Science 2026-02-04 Samuel Yeh , Sharon Li , Tanwi Mallick

Hallucination remains a fundamental challenge in vision-language models (VLMs), where autoregressive generation may produce linguistically plausible yet physically inconsistent or visually ungrounded responses due to likelihood maximization…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Qinwu Xu

Obstacle avoidance enables autonomous agents and robots to operate safely and efficiently in dynamic and complex environments, reducing the risk of collisions and damage. For a robot or autonomous system to successfully navigate through…

Robotics · Computer Science 2025-08-12 Justin London

Object hallucination remains a critical challenge in Large Vision-Language Models (LVLMs), where models generate content inconsistent with visual inputs. Existing language-decoder based mitigation approaches often regulate visual or textual…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Liu Yu , Zhonghao Chen , Ping Kuang , Zhikun Feng , Fan Zhou , Lan Wang , Gillian Dobbie

Multimodal language models (MLMs) still face challenges in fundamental visual perception tasks where specialized models excel. Tasks requiring reasoning about 3D structures benefit from depth estimation, and reasoning about 2D object…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Mahtab Bigverdi , Zelun Luo , Cheng-Yu Hsieh , Ethan Shen , Dongping Chen , Linda G. Shapiro , Ranjay Krishna

Large Multimodal Models (LMMs) have shown significant progress in various complex vision tasks with the solid linguistic and reasoning capacity inherited from large language models (LMMs). Low-rank adaptation (LoRA) offers a promising…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Liang Mi , Weijun Wang , Wenming Tu , Qingfeng He , Rui Kong , Xinyu Fang , Yazhu Dong , Yikang Zhang , Yunchun Li , Meng Li , Haipeng Dai , Guihai Chen , Yunxin Liu

We present a Collaborative Agent-Based Framework for Multi-Image Reasoning. Our approach tackles the challenge of interleaved multimodal reasoning across diverse datasets and task formats by employing a dual-agent system: a language-based…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Angelos Vlachos , Giorgos Filandrianos , Maria Lymperaiou , Nikolaos Spanos , Ilias Mitsouras , Vasileios Karampinis , Athanasios Voulodimos

Despite great success across various multimodal tasks, Large Vision-Language Models (LVLMs) often encounter object hallucinations with generated textual responses being inconsistent with the actual objects in images. We examine different…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Wenbin An , Feng Tian , Sicong Leng , Jiahao Nie , Haonan Lin , QianYing Wang , Ping Chen , Xiaoqin Zhang , Shijian Lu

Large Vision-Language Models (LVLMs) demonstrate remarkable capabilities in multimodal tasks, but visual object hallucination remains a persistent issue. It refers to scenarios where models generate inaccurate visual object-related…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Liqiang Jing , Guiming Hardy Chen , Ehsan Aghazadeh , Xin Eric Wang , Xinya Du

Hallucination remains a major challenge for Large Vision-Language Models (LVLMs). Direct Preference Optimization (DPO) has gained increasing attention as a simple solution to hallucination issues. It directly learns from constructed…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Zhihe Yang , Xufang Luo , Dongqi Han , Yunjian Xu , Dongsheng Li

Optical character recognition (OCR) and multilingual text understanding remain major failure modes of multimodal large language models (MLLMs), particularly in real-world images containing cluttered layouts, small fonts, blur, occlusion,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Qinwu Xu , Yifan Jiang , Haoyu Ren

Vision-language models (VLMs) are vulnerable to adversarial image perturbations. Existing works based on adversarial training against task-specific adversarial examples are computationally expensive and often fail to generalize to unseen…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Jingning Xu , Haochen Luo , Chen Liu

Large Vision-Language Models (LVLMs) have achieved remarkable success but continue to struggle with object hallucination (OH), generating outputs inconsistent with visual inputs. While previous work has proposed methods to reduce OH, the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Boxu Chen , Ziwei Zheng , Le Yang , Zeyu Geng , Zhengyu Zhao , Chenhao Lin , Chao Shen