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Despite the recent breakthroughs achieved by Large Vision Language Models (LVLMs) in understanding and responding to complex visual-textual contexts, their inherent hallucination tendencies limit their practical application in real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Junzhe Chen , Tianshu Zhang , Shiyu Huang , Yuwei Niu , Linfeng Zhang , Lijie Wen , Xuming Hu

Large vision-language models (LVLMs) excel at multimodal tasks but are prone to misinterpreting visual inputs, often resulting in hallucinations and unreliable outputs. We present DROPOUT DECODING, a novel inference-time approach that…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Yixiong Fang , Ziran Yang , Zhaorun Chen , Zhuokai Zhao , Jiawei Zhou

We propose a method to improve Visual Question Answering (VQA) with Retrieval-Augmented Generation (RAG) by introducing text-grounded object localization. Rather than retrieving information based on the entire image, our approach enables…

Artificial Intelligence · Computer Science 2025-10-01 Xinxi Chen , Tianyang Chen , Lijia Hong

Large language models (LLMs) frequently generate confident yet inaccurate responses, introducing significant risks for deployment in safety-critical domains. We present a novel, test-time approach to detecting model hallucination through…

Machine Learning · Computer Science 2025-10-07 Hazel Kim , Tom A. Lamb , Adel Bibi , Philip Torr , Yarin Gal

Recently, multimodal large language models have made significant advancements in video understanding tasks. However, their ability to understand unprocessed long videos is very limited, primarily due to the difficulty in supporting the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Yiwei Sun , Zhihang Liu , Chuanbin Liu , Bowei Pu , Zhihan Zhang , Hongtao Xie

Large Language Models (LLMs) have demonstrated exceptional performance across various natural language processing tasks. However, they occasionally generate inaccurate and counterfactual outputs, a phenomenon commonly referred to as…

Computation and Language · Computer Science 2025-06-04 Dingwei Chen , Feiteng Fang , Shiwen Ni , Feng Liang , Xiping Hu , Ahmadreza Argha , Hamid Alinejad-Rokny , Min Yang , Chengming Li

Large Vision-Language Models (LVLMs), empowered by the success of Large Language Models (LLMs), have achieved impressive performance across domains. Despite the great advances in LVLMs, they still suffer from the unavailable object…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Ming-Kun Xie , Jia-Hao Xiao , Gang Niu , Lei Feng , Zhiqiang Kou , Min-Ling Zhang , Masashi Sugiyama

Although Multimodal Large Language Models (MLLMs) have advanced substantially, they remain vulnerable to object hallucination caused by language priors and visual information loss. To address this, we propose SAVE (Sparse Autoencoder-Driven…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Sangha Park , Seungryong Yoo , Jisoo Mok , Sungroh Yoon

Multimodal Large Language Models (MLLMs) often suffer from hallucinations, particularly errors in object existence, attributes, or relations, which undermine their reliability. We introduce TACO (Verified Atomic Confidence Estimation), a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Jiarui Liu , Weihao Xuan , Zhijing Jin , Mona Diab

Large vision-language models (LVLMs) are increasingly being applied to multi-view image inputs captured from diverse viewpoints. However, despite this growing use, current LVLMs often confuse or mismatch visual information originating from…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Wooje Park , Insu Lee , Soohyun Kim , Jaeyun Jang , Minyoung Noh , Kyuhong Shim , Byonghyo Shim

Recent advancements in Large Vision-Language Models (LVLMs) have demonstrated significant progress across multiple domains. However, these models still face the inherent challenge of integrating vision and language for collaborative…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Jiabing Yang , Chenhang Cui , Yiyang Zhou , Yixiang Chen , Peng Xia , Ying Wei , Tao Yu , Yan Huang , Liang Wang

Since the introduction of ChatGPT, large language models (LLMs) have demonstrated significant utility in various tasks, such as answering questions through retrieval-augmented generation. Context can be retrieved using a vectorized…

Computation and Language · Computer Science 2025-07-01 Ming Cheung

Large Vision-Language Models (LVLMs) have achieved remarkable performance on diverse vision-language tasks. However, LVLMs still suffer from hallucinations, generating text that contradicts the visual input. Existing research has primarily…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Zhenxin Qin , Qiang Li , Qingzhuo Wang , Ruiyang Qin , Zhihua Wei , Wen Shen

Vision-Language Models (VLMs) exhibit systematic bias toward visual illusions, recalling memorized facts rather than perceiving actual visual differences. This paper presents a training-free framework for the 5th DataCV Challenge Task 1 at…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Junli Zha , Jiahui Wang , Xinkai Lu , Jinbo Wang

Large Vision-Language Models (LVLMs) excel in integrating visual and linguistic contexts to produce detailed content, facilitating applications such as image captioning. However, using LVLMs to generate descriptions often faces the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Mingqian Feng , Yunlong Tang , Zeliang Zhang , Chenliang Xu

Large Vision-Language Models (LVLMs) have advanced rapidly by aligning visual patches with the text embedding space, but a fixed visual-token budget forces images to be resized to a uniform pretraining resolution, often erasing fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Zipeng Zhu , Zhanghao Hu , Qinglin Zhu , Yuxi Hong , Yijun Liu , Jingyong Su , Yulan He , Lin Gui

While recent Large Vision-Language Models (LVLMs) have shown remarkable performance in multi-modal tasks, they are prone to generating hallucinatory text responses that do not align with the given visual input, which restricts their…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Ce Zhang , Zifu Wan , Zhehan Kan , Martin Q. Ma , Simon Stepputtis , Deva Ramanan , Russ Salakhutdinov , Louis-Philippe Morency , Katia Sycara , Yaqi Xie

Vision Language Models (VLMs) show impressive capabilities in integrating and reasoning with both visual and language data. But these models make mistakes. A common finding -- similar to LLMs -- is their tendency to hallucinate, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Sotirios Panagiotis Chytas , Miso Choi , Hyunwoo J. Kim , Vikas Singh

Hallucinations in large vision-language models (LVLMs) pose significant challenges for real-world applications, as LVLMs may generate responses that appear plausible yet remain inconsistent with the associated visual content. This issue…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Xin Dong , Shichao Dong , Jin Wang , Jing Huang , Li Zhou , Zenghui Sun , Lihua Jing , Jingsong Lan , Xiaoyong Zhu , Bo Zheng

Large Vision-Language Models (LVLMs) have recently achieved impressive results in multimodal tasks such as image captioning and visual question answering. However, they remain prone to object hallucination -- generating descriptions of…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Jinlin Li , Yuran Wang , Yifei Yuan , Xiao Zhou , Yingying Zhang , Xixian Yong , Yefeng Zheng , Xian Wu