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The rapidly developing Large Vision Language Models (LVLMs) have shown notable capabilities on a range of multi-modal tasks, but still face the hallucination phenomena where the generated texts do not align with the given contexts,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Wenyi Xiao , Ziwei Huang , Leilei Gan , Wanggui He , Haoyuan Li , Zhelun Yu , Fangxun Shu , Hao Jiang , Linchao Zhu

Vision-language models (VLMs) often struggle to generate accurate and detailed captions for high-resolution images since they are typically pre-trained on low-resolution inputs (e.g., 224x224 or 336x336 pixels). Downscaling high-resolution…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Hankyeol Lee , Gawon Seo , Kyounggyu Lee , Dogun Kim , Kyungwoo Song , Jiyoung Jung

Large Vision Language Models exhibit remarkable capabilities but struggle with hallucinations inconsistencies between images and their descriptions. Previous hallucination evaluation studies on LVLMs have identified hallucinations in terms…

Artificial Intelligence · Computer Science 2024-11-11 Chaoya Jiang , Hongrui Jia , Wei Ye , Mengfan Dong , Haiyang Xu , Ming Yan , Ji Zhang , Shikun Zhang

Large vision-language models (LVLMs) have recently dramatically pushed the state of the art in image captioning and many image understanding tasks (e.g., visual question answering). LVLMs, however, often \textit{hallucinate} and produce…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Gregor Geigle , Radu Timofte , Goran Glavaš

Recently, Large Vision-Language Models (LVLMs) show remarkable performance across various domains. However, these models suffer from object hallucination. In this work, we study object hallucination primarily in a discriminative,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Hongseok Oh , Wonseok Hwang

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

Fine-grained supervision based on object annotations has been widely used for vision and language pre-training (VLP). However, in real-world application scenarios, aligned multi-modal data is usually in the image-caption format, which only…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Lisai Zhang , Qingcai Chen , Zhijian Chen , Yunpeng Han , Zhonghua Li , Zhao Cao

Large Vision-Language Models (LVLMs) have achieved impressive performance, yet research has pointed out a serious issue with object hallucinations within these models. However, there is no clear conclusion as to which part of the model…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Yufang Liu , Tao Ji , Changzhi Sun , Yuanbin Wu , Aimin Zhou

Large Vision-Language Models (LVLMs) are an extension of Large Language Models (LLMs) that facilitate processing both image and text inputs, expanding AI capabilities. However, LVLMs struggle with object hallucinations due to their reliance…

Computation and Language · Computer Science 2024-08-12 Avshalom Manevich , Reut Tsarfaty

Large Vision-Language Models (LVLMs) are susceptible to object hallucinations, an issue in which their generated text contains non-existent objects, greatly limiting their reliability and practicality. Current approaches often rely on the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Ailin Deng , Zhirui Chen , Bryan Hooi

Large Vision-Language Models (LVLMs) have demonstrated proficiency in tackling a variety of visual-language tasks. However, current LVLMs suffer from misalignment between text and image modalities which causes three kinds of hallucination…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Liqiang Jing , Xinya Du

The tendency for hallucination in current large language models (LLMs) negatively impacts dialogue systems. Such hallucinations produce factually incorrect responses that may mislead users and undermine system trust. Existing refinement…

Computation and Language · Computer Science 2026-02-18 Xiangyan Chen , Yujian Gan , Matthew Purver

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

Large Vision-Language Models (LVLMs) bridge the gap between visual and linguistic modalities, demonstrating strong potential across a variety of domains. However, despite significant progress, LVLMs still suffer from severe hallucination…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Ruiqi Ma , Yu Yan , Chunhong Zhang , Minghao Yin , XinChao Liu , Zhihong Jin , Zheng Hu

Multimodal large language models (MLLMs) have attracted increasing attention in the past few years, but they may still generate descriptions that include objects not present in the corresponding images, a phenomenon known as object…

Computation and Language · Computer Science 2024-09-24 Shangyu Xing , Fei Zhao , Zhen Wu , Tuo An , Weihao Chen , Chunhui Li , Jianbing Zhang , Xinyu Dai

Large vision-language models (LVLMs) have shown remarkable abilities in understanding visual information with human languages. However, LVLMs still suffer from object hallucination, which is the problem of generating descriptions that…

Machine Learning · Computer Science 2024-03-19 Yiyang Zhou , Chenhang Cui , Jaehong Yoon , Linjun Zhang , Zhun Deng , Chelsea Finn , Mohit Bansal , Huaxiu Yao

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

Large Language Models (LLMs) excel in fluency but risk producing inaccurate content, called "hallucinations." This paper outlines a standardized process for categorizing fine-grained hallucination types and proposes an innovative…

Computation and Language · Computer Science 2024-07-02 Kunquan Deng , Zeyu Huang , Chen Li , Chenghua Lin , Min Gao , Wenge Rong

Large language models (LMs) are prone to generate factual errors, which are often called hallucinations. In this paper, we introduce a comprehensive taxonomy of hallucinations and argue that hallucinations manifest in diverse forms, each…

Computation and Language · Computer Science 2024-08-14 Abhika Mishra , Akari Asai , Vidhisha Balachandran , Yizhong Wang , Graham Neubig , Yulia Tsvetkov , Hannaneh Hajishirzi

Large Language Models (LLMs) have become increasingly important in natural language processing, enabling advanced data analytics through natural language queries. However, these models often generate "hallucinations"-inaccurate or…

Computation and Language · Computer Science 2024-10-29 Mikhail Rumiantsau , Aliaksei Vertsel , Ilya Hrytsuk , Isaiah Ballah
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