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Recent advances in Large Vision-Language Models (LVLMs) have significantly improve performance in image comprehension tasks, such as formatted charts and rich-content images. Yet, Graphical User Interface (GUI) pose a greater challenge due…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Ziyang Meng , Yu Dai , Zezheng Gong , Shaoxiong Guo , Minglong Tang , Tongquan Wei

Large-scale vision-language pre-trained (VLP) models are prone to hallucinate non-existent visual objects when generating text based on visual information. In this paper, we systematically study the object hallucination problem from three…

Computation and Language · Computer Science 2023-02-13 Wenliang Dai , Zihan Liu , Ziwei Ji , Dan Su , Pascale Fung

Multimodal Large Language Models (MLLMs) have garnered significant attention recently and demonstrate outstanding capabilities in various tasks such as OCR, VQA, captioning, $\textit{etc}$. However, hallucination remains a persistent issue.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Zehao Wang , Xinpeng Liu , Yudonglin Zhang , Xiaoqian Wu , Zhou Fang , Yifan Fang , Junfu Pu , Cewu Lu , Yong-Lu Li

Despite their impressive performance on multi-modal tasks, large vision-language models (LVLMs) tend to suffer from hallucinations. An important type is object hallucination, where LVLMs generate objects that are inconsistent with the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Shounak Datta , Dhanasekar Sundararaman

Large vision-language models (LVLMs) suffer from hallucination, resulting in misalignment between the output textual response and the input visual content. Recent research indicates that the over-reliance on the Large Language Model (LLM)…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Yuxi Xie , Guanzhen Li , Xiao Xu , Min-Yen Kan

Vision-language models (VLMs) have recently shown remarkable capabilities in visual understanding and generation, but remain vulnerable to adversarial manipulations of visual content. Prior object-hiding attacks primarily rely on…

Cryptography and Security · Computer Science 2026-03-18 Amira Guesmi , Muhammad Shafique

Vision Language models (VLMs) often hallucinate non-existent objects. Detecting hallucination is analogous to detecting deception: a single final statement is insufficient, one must examine the underlying reasoning process. Yet existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Abin Shoby , Ta Duc Huy , Tuan Dung Nguyen , Minh Khoi Ho , Qi Chen , Anton van den Hengel , Phi Le Nguyen , Johan W. Verjans , Vu Minh Hieu Phan

Multimodal large language models (MLLMs) have achieved remarkable progress in vision-language reasoning, yet they remain vulnerable to hallucination, where generated content deviates from visual evidence. Existing mitigation strategies…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Xingyu Zhu , Kesen Zhao , Liang Yi , Shuo Wang , Zhicai Wang , Beier Zhu , Hanwang Zhang

Large Vision-Language Models (LVLMs) have made remarkable developments along with the recent surge of large language models. Despite their advancements, LVLMs have a tendency to generate plausible yet inaccurate or inconsistent information…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Dexter Neo , Tsuhan Chen

While medical Multimodal Large Language Models (MLLMs) have shown promise in assisting diagnosis, they still frequently generate hallucinated responses that appear linguistically plausible but lack visual evidence. Such hallucinations pose…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Jiayi Chen , Benteng Ma , Zehui Liao , Winston Chong , Yasmeen George , Jianfei Cai

Mitigating hallucinations of Large Vision Language Models,(LVLMs) is crucial to enhance their reliability for general-purpose assistants. This paper shows that such hallucinations of LVLMs can be significantly exacerbated by preceding…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Dongmin Park , Zhaofang Qian , Guangxing Han , Ser-Nam Lim

Spatial relation hallucinations pose a persistent challenge in large vision-language models (LVLMs), leading to generate incorrect predictions about object positions and spatial configurations within an image. To address this issue, we…

Computation and Language · Computer Science 2025-03-24 Jiarui Wu , Zhuo Liu , Hangfeng He

Despite Video Large Language Models having rapidly advanced in recent years, perceptual hallucinations pose a substantial safety risk, which severely restricts their real-world applicability. While several methods for hallucination…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Yiming Sun , Mi Zhang , Feifei Li , Geng Hong , Min Yang

Large vision-language models (LVLMs) achieve strong multimodal performance, but still suffer from hallucinations caused by unstable visual grounding and over-reliance on language priors. Existing training-free decoding methods typically…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Xinyun Liu

Large Vision-Language Models (LVLMs) suffer from serious hallucination problems, where the model-generated responses are inconsistent with the visual inputs. Existing hallucination mitigation methods are mainly based on preference alignment…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Yifan Lu , Ziqi Zhang , Chunfeng Yuan , Jun Gao , Congxuan Zhang , Xiaojuan Qi , Bing Li , Weiming Hu

Despite achieving outstanding performance on various cross-modal tasks, current large vision-language models (LVLMs) still suffer from hallucination issues, manifesting as inconsistencies between their generated responses and the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Rui Hu , Yahan Tu , Shuyu Wei , Dongyuan Lu , Jitao Sang

In tasks like summarization and open-book question answering (QA), Large Language Models (LLMs) often encounter "contextual hallucination", where they produce irrelevant or incorrect responses despite having access to accurate source…

Computation and Language · Computer Science 2025-07-08 Yu Wang , Kamalika Das , Xiang Gao , Wendi Cui , Peng Li , Jiaxin Zhang

Large Vision-Language Models (LVLMs) have obtained impressive performance in visual content understanding and multi-modal reasoning. Unfortunately, these large models suffer from serious hallucination problems and tend to generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Wei Suo , Lijun Zhang , Mengyang Sun , Lin Yuanbo Wu , Peng Wang , Yanning Zhang

Despite the remarkable multimodal capabilities of Large Vision-Language Models (LVLMs), discrepancies often occur between visual inputs and textual outputs--a phenomenon we term visual hallucination. This critical reliability gap poses…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Tao Huang , Zhekun Liu , Rui Wang , Yang Zhang , Liping Jing

Despite the significant progress of Multimodal Large Language Models (MLLMs) across diverse tasks, hallucination -- corresponding to the generation of visually inconsistent objects, attributes, or relations -- remains a major obstacle to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Siyu Jiang , Feiyang Chen , Xiaojin Zhang , Kun He
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