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Large Vision-Language Model (LVLM) systems have demonstrated impressive vision-language reasoning capabilities but suffer from pervasive and severe hallucination issues, posing significant risks in critical domains such as healthcare and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Zhehan Kan , Ce Zhang , Zihan Liao , Yapeng Tian , Wenming Yang , Junyuan Xiao , Xu Li , Dongmei Jiang , Yaowei Wang , Qingmin Liao

Large Vision-Language Models have shown strong multimodal reasoning capabilities, yet they remain susceptible to object hallucinations when language priors dominate insufficient or misaligned visual evidence. Training-free contrastive…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Xiaoyi Huang , Kejia Zhang , Zhiming Luo

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

Large vision-language models (LVLMs) have demonstrated remarkable capabilities in multimodal understanding tasks. However, the increasing demand for high-resolution image and long-video understanding results in substantial token counts,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Junjie Chen , Xuyang Liu , Zichen Wen , Yiyu Wang , Siteng Huang , Honggang Chen

Recent advances in large video-language models have displayed promising outcomes in video comprehension. Current approaches straightforwardly convert video into language tokens and employ large language models for multi-modal tasks.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Fan Ma , Xiaojie Jin , Heng Wang , Yuchen Xian , Jiashi Feng , Yi Yang

Object hallucination is a significant challenge that hinders the application of large vision-language models (LVLMs) in practice. We hypothesize that one possible origin of hallucination is the model's tendency to prioritize text generation…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Meng Shen , Minghao Wu , Deepu Rajan

Although Video Large Language Models perform remarkably well across tasks such as video understanding, question answering, and reasoning, they still suffer from the problem of hallucination, which refers to generating outputs that are…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Yuansheng Gao , Jinman Zhao , Tong Zhang , Xingguo Xu , Han Bao , Zonghui Wang , Wenzhi Chen

Hallucinations pose a significant challenge to the reliability of large vision-language models, making their detection essential for ensuring accuracy in critical applications. Current detection methods often rely on computationally…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Eunkyu Park , Minyeong Kim , Gunhee Kim

Despite their impressive capabilities, multimodal large language models (MLLMs) are prone to hallucinations, i.e., the generated content that is nonsensical or unfaithful to input sources. Unlike in LLMs, hallucinations in MLLMs often stem…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Xin Zou , Yizhou Wang , Yibo Yan , Yuanhuiyi Lyu , Kening Zheng , Sirui Huang , Junkai Chen , Peijie Jiang , Jia Liu , Chang Tang , Xuming Hu

Mitigating object hallucination in large vision-language models (LVLMs) is critical to their safe deployment. Existing methods either are restricted to specific decoding methods, or demand sophisticated modifications to visual inputs, or…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Xixi Liu , Ailin Deng , Christopher Zach

Vision-language models (VLMs) frequently generate hallucinated content plausible but incorrect claims about image content. We propose a training-free self-correction framework enabling VLMs to iteratively refine responses through…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Kassoum Sanogo , Renzo Ardiccioni

Vision-Language Models (VLMs) excel at visual understanding but often suffer from visual hallucinations, where they generate descriptions of nonexistent objects, actions, or concepts, posing significant risks in safety-critical…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Tsung-Han Wu , Heekyung Lee , Jiaxin Ge , Joseph E. Gonzalez , Trevor Darrell , David M. Chan

Large Vision-Language Models (LVLMs) have exhibited impressive capabilities across various visual tasks, yet they remain hindered by the persistent challenge of hallucinations. To address this critical issue, we propose Mixture of Decoding…

Computation and Language · Computer Science 2025-06-11 Xinlong Chen , Yuanxing Zhang , Qiang Liu , Junfei Wu , Fuzheng Zhang , Tieniu Tan

Large vision-language models (LVLMs) have demonstrated remarkable multimodal comprehension and reasoning capabilities, but they still suffer from severe object hallucination. Previous studies primarily attribute the flaw to linguistic prior…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Haohan Zheng , Zhenguo Zhang

Vision-Language Large Models (VLLMs) face significant efficiency challenges when processing high-resolution inputs. The quadratic complexity in attention and autoregressive generation, as well as the constantly growing key value (KV) cache…

Multimedia · Computer Science 2025-10-31 Zhonghua Jiang , Kunxi Li , Yiyun Zhou , Sihao Liu , Zhaode Wang , Chengfei lv , Shengyu Zhang

While multi-modal large language models (MLLMs) have made significant progress in recent years, the issue of hallucinations remains a major challenge. To mitigate this phenomenon, existing solutions either introduce additional data for…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Fengyuan Sun , Hui Chen , Xinhao Xu , Dandan Zheng , Jingdong Chen , Jun Zhou , Jungong Han , Guiguang Ding

Large Vision Language Models (LVLMs) achieve strong multimodal reasoning but frequently exhibit hallucinations and incorrect responses with high certainty, which hinders their usage in high-stakes domains. Existing verbalized confidence…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Wenyi Xiao , Xinchi Xu , Leilei Gan

Large Vision-Language Models (LVLMs) can reason from image-text inputs and perform well in various multimodal tasks. Despite this success, they are affected by language priors and often produce hallucinations. Hallucinations denote…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Xinrong Chen , Xu Chu , Yingmin Qiu , Hengyuan Zhang , Jing Xiong , Shiyu Tang , Shuai Liu , Shaokang Yang , Cheng Yang , Hayden Kwok-Hay So , Ngai Wong

Weakly-supervised vision-language (V-L) pre-training (W-VLP) aims at learning cross-modal alignment with little or no paired data, such as aligned images and captions. Recent W-VLP methods, which pair visual features with object tags, help…

Computer Vision and Pattern Recognition · Computer Science 2022-10-28 Tzu-Jui Julius Wang , Jorma Laaksonen , Tomas Langer , Heikki Arponen , Tom E. Bishop

Vision-Language Models (VLMs) excel across diverse tasks but suffer from high inference costs in time and memory. Token sparsity mitigates inefficiencies in token usage, while neuron sparsity reduces high-dimensional computations, both…

Machine Learning · Computer Science 2025-05-27 Qinsi Wang , Hancheng Ye , Ming-Yu Chung , Yudong Liu , Yueqian Lin , Martin Kuo , Mingyuan Ma , Jianyi Zhang , Yiran Chen
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