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Large Vision-Language Models (LVLMs) usually generate texts which satisfy context coherence but don't match the visual input. Such a hallucination issue hinders LVLMs' applicability in the real world. The key to solving hallucination in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Nanxing Hu , Xiaoyue Duan , Jinchao Zhang , Guoliang Kang

Hallucinations in video-capable vision-language models (Video-VLMs) remain frequent and high-confidence, while existing uncertainty metrics often fail to align with correctness. We introduce VideoHEDGE, a modular framework for hallucination…

Computer Vision and Pattern Recognition · Computer Science 2026-01-14 Sushant Gautam , Cise Midoglu , Vajira Thambawita , Michael A. Riegler , Pål Halvorsen

Medical visual question answering (Med-VQA) aims to answer clinically relevant questions grounded in medical images. However, existing multimodal large language models (MLLMs) often exhibit shortcut answering, producing plausible responses…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Zhisong Wang , Ziyang Chen , Zanting Ye , Hongze Zhu , Yefeng Zheng , Yong Xia

Inspired by the superior language abilities of large language models (LLM), large vision-language models (LVLM) have been recently explored by integrating powerful LLMs for improving the performance on complex multimodal tasks. Despite the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Yifan Li , Yifan Du , Kun Zhou , Jinpeng Wang , Wayne Xin Zhao , Ji-Rong Wen

This survey presents a comprehensive analysis of the phenomenon of hallucination in multimodal large language models (MLLMs), also known as Large Vision-Language Models (LVLMs), which have demonstrated significant advancements and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Zechen Bai , Pichao Wang , Tianjun Xiao , Tong He , Zongbo Han , Zheng Zhang , Mike Zheng Shou

Accurate diagnosis of skin diseases remains a significant challenge due to the complex and diverse visual features present in dermatoscopic images, often compounded by a lack of interpretability in existing purely visual diagnostic models.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Kexin Yu , Zihan Xu , Jialei Xie , Carter Adams

This work introduces a novel methodology for the automatic detection of hallucinations generated during large language model (LLM) inference. The proposed approach is based on a systematic taxonomy and controlled reproduction of diverse…

Computation and Language · Computer Science 2025-10-08 Maksym Zavhorodnii , Dmytro Dehtiarov , Anna Konovalenko

Large Vision-Language Models (LVLMs) have achieved remarkable progress in multimodal tasks, yet their reliability is persistently undermined by hallucinations-generating text that contradicts visual input. Recent studies often attribute…

Multimedia · Computer Science 2026-05-12 Yangneng Chen , Junlin Li , Weijun Yao , Xilai Ma , Guodong Du , Wenya Wang , Jing Li

Contemporary Language Models (LMs), while impressively fluent, often generate content that is factually incorrect or unfaithful to the input context - a critical issue commonly referred to as 'hallucination'. This tendency of LMs to…

Computation and Language · Computer Science 2025-06-24 Anwoy Chatterjee , Yash Goel , Tanmoy Chakraborty

Multimodal large language models (MLLMs) have become a key interface for visual reasoning and grounded question answering, yet they remain vulnerable to visual hallucinations, where generated responses contradict image content or mention…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Fanpu Cao , Xin Zou , Xuming Hu , Hui Xiong

While large vision-language models (LVLMs) have shown impressive capabilities in generating plausible responses correlated with input visual contents, they still suffer from hallucinations, where the generated text inaccurately reflects…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Yi-Lun Lee , Yi-Hsuan Tsai , Wei-Chen Chiu

Vision-language models (VLMs) have great potential for medical image understanding, particularly in Visual Report Generation (VRG) and Visual Question Answering (VQA), but they may generate hallucinated responses that contradict visual…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Zehui Liao , Shishuai Hu , Ke Zou , Mengyuan Jin , Yanning Zhang , Huazhu Fu , Liangli Zhen , Yong Xia

Large Language Models (LLMs) have transformed natural language processing (NLP) tasks, but they suffer from hallucination, generating plausible yet factually incorrect content. This issue extends to Video-Language Models (VideoLLMs), where…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Ahmad Khalil , Mahmoud Khalil , Alioune Ngom

Despite recent advances in Large Vision Language Models (LVLMs), these models still suffer from generating hallucinatory responses that do not align with the visual input provided. To mitigate such hallucinations, we introduce Efficient…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Laura Fieback , Nishilkumar Balar , Jakob Spiegelberg , Hanno Gottschalk

Multimodal Large Language Models (MLLMs) often generate hallucinations, where the output deviates from the visual content. Given that these hallucinations can take diverse forms, detecting hallucinations at a fine-grained level is essential…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Yuiga Wada , Kazuki Matsuda , Komei Sugiura , Graham Neubig

Hallucination has been a long-standing and inevitable problem that hinders the application of Large Vision-Language Models (LVLMs) in domains that require high reliability. Various methods focus on improvement depending on data annotations…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Chao Wang , Jianming Yang , Yang Zhou

Recent advances in Vision-Language Models (VLMs) have substantially enhanced their ability across multimodal video understanding benchmarks spanning temporal, action, object, and spatial understanding. However, we identify a critical yet…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Cui Yakun , Xingqun Qi , TianTian Geng , Yuyao Zhang , Sirui Han , Yike Guo

Vision Language Models (VLMs) have achieved impressive progress in multimodal reasoning; yet, they remain vulnerable to hallucinations, where outputs are not grounded in visual evidence. In this paper, we investigate a previously overlooked…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Sifan Li , Hongkai Chen , Yujun Cai , Qingwen Ye , Liyang Chen , Junsong Yuan , Yiwei Wang

Multimodal large language models (MLLMs) have recently achieved remarkable progress in radiology by integrating visual perception with natural language understanding. However, they often generate clinically unsupported descriptions, known…

Computation and Language · Computer Science 2025-10-20 Xi Zhang , Zaiqiao Meng , Jake Lever , Edmond S. L. Ho

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