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Related papers: Object Hallucination in Image Captioning

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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

Image caption generation is a long standing and challenging problem at the intersection of computer vision and natural language processing. A number of recently proposed approaches utilize a fully supervised object recognition model within…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Berkan Demirel , Ramazan Gokberk Cinbis , Nazli Ikizler-Cinbis

Large vision-language models can produce object hallucinations in image descriptions, highlighting the need for effective detection and mitigation strategies. Prior work commonly relies on the model's attention weights on visual tokens as a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Reihaneh Zohrabi , Hosein Hasani , Akshita Gupta , Mahdieh Soleymani Baghshah , Anna Rohrbach , Marcus Rohrbach

In this work, we address the challenge of developing automatic evaluation metrics for image captioning, with a particular focus on robustness against hallucinations. Existing metrics are often inadequate for handling hallucinations,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Kazuki Matsuda , Yuiga Wada , Komei Sugiura

By leveraging both texts and images, large vision language models (LVLMs) have shown significant progress in various multi-modal tasks. Nevertheless, these models often suffer from hallucinations, e.g., they exhibit inconsistencies between…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Nhi Pham , Michael Schott

Hallucination is a common issue in Multimodal Large Language Models (MLLMs), yet the underlying principles remain poorly understood. In this paper, we investigate which components of MLLMs contribute to object hallucinations. To analyze…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yueqian Wang , Jianxin Liang , Yuxuan Wang , Huishuai Zhang , Dongyan Zhao

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities in understanding and describing visual content, achieving state-of-the-art performance across various vision-language tasks. However, these models often generate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Kazi Hasan Ibn Arif , Sajib Acharjee Dip , Khizar Hussain , Lang Zhang , Chris Thomas

We present our work in progress exploring the possibilities of a shared embedding space between textual and visual modality. Leveraging the textual nature of object detection labels and the hypothetical expressiveness of extracted visual…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Dušan Variš , Katsuhito Sudoh , Satoshi Nakamura

Recently, attention based models have been used extensively in many sequence-to-sequence learning systems. Especially for image captioning, the attention based models are expected to ground correct image regions with proper generated words.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Fenglin Liu , Xuancheng Ren , Xian Wu , Wei Fan , Yuexian Zou , Xu Sun

Knowledge-grounded conversational models are known to suffer from producing factually invalid statements, a phenomenon commonly called hallucination. In this work, we investigate the underlying causes of this phenomenon: is hallucination…

Computation and Language · Computer Science 2022-04-19 Nouha Dziri , Sivan Milton , Mo Yu , Osmar Zaiane , Siva Reddy

Automatically generating natural language descriptions from an image is a challenging problem in artificial intelligence that requires a good understanding of the visual and textual signals and the correlations between them. The…

Computation and Language · Computer Science 2020-08-07 Arushi Goel , Basura Fernando , Thanh-Son Nguyen , Hakan Bilen

In language and vision-language models, hallucination is broadly understood as content generated from a model's prior knowledge or biases rather than from the given input. While this phenomenon has been studied in those domains, it has not…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Seyed Amir Kasaei , Mohammad Hossein Rohban

Large Vision-Language Models (LVLMs) demonstrate remarkable capabilities in multimodal tasks, but visual object hallucination remains a persistent issue. It refers to scenarios where models generate inaccurate visual object-related…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Liqiang Jing , Guiming Hardy Chen , Ehsan Aghazadeh , Xin Eric Wang , Xinya Du

Large Vision-Language Models (VLMs) have achieved remarkable success across diverse multimodal tasks but remain vulnerable to hallucinations rooted in inherent language bias. Despite recent progress, existing hallucination mitigation…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Yilin Yang , Zhenghui Guo , Yuke Wang , Omprakash Gnawali , Sheng Di , Chengming Zhang

Hallucination, where models generate fluent text unsupported by visual evidence, remains a major flaw in vision-language models and is particularly critical in sign language translation (SLT). In SLT, meaning depends on precise grounding in…

Model hallucination is one of the most critical challenges faced by Large Language Models (LLMs), especially in high-stakes code intelligence tasks. As LLMs become increasingly integrated into software engineering tasks, understanding and…

Software Engineering · Computer Science 2025-11-04 Cuiyun Gao , Guodong Fan , Chun Yong Chong , Shizhan Chen , Chao Liu , David Lo , Zibin Zheng , Qing Liao

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) frequently suffer from Object Hallucination (OH), wherein they generate descriptions containing objects that are not actually present in the input image. This phenomenon is particularly problematic in…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Yanbin Huang , Yisen Li , Guiyao Tie , Xiaoye Qu , Pan Zhou , Hongfei Wang , Zhaofan Zou , Hao Sun , Xuelong Li

While many capabilities of language models (LMs) improve with increased training budget, the influence of scale on hallucinations is not yet fully understood. Hallucinations come in many forms, and there is no universally accepted…

The rapid development of Multi-modality Large Language Models (MLLMs) has significantly influenced various aspects of industry and daily life, showcasing impressive capabilities in visual perception and understanding. However, these models…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Yinan Sun , Zicheng Zhang , Haoning Wu , Xiaohong Liu , Weisi Lin , Guangtao Zhai , Xiongkuo Min
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