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Vision-language models (VLMs) allow to embed texts and images in a shared representation space. However, it has been shown that these models are subject to a modality gap phenomenon meaning there exists a clear separation between the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 François Role , Sébastien Meyer , Victor Amblard

Image captioning aims at generating descriptive and meaningful textual descriptions of images, enabling a broad range of vision-language applications. Prior works have demonstrated that harnessing the power of Contrastive Image Language…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Longtian Qiu , Shan Ning , Xuming He

Large-scale natural image-text datasets, especially those automatically collected from the web, often suffer from loose semantic alignment due to weak supervision, while medical datasets tend to have high cross-modal correlation but low…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Shengzhu Yang , Jiawei Du , Shuai Lu , Weihang Zhang , Ningli Wang , Huiqi Li

In rapidly evolving field of vision-language models (VLMs), contrastive language-image pre-training (CLIP) has made significant strides, becoming foundation for various downstream tasks. However, relying on one-to-one (image, text)…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Haicheng Wang , Chen Ju , Weixiong Lin , Shuai Xiao , Mengting Chen , Yixuan Huang , Chang Liu , Mingshuai Yao , Jinsong Lan , Ying Chen , Qingwen Liu , Yanfeng Wang

Multi-modal representation learning has become a pivotal area in artificial intelligence, enabling the integration of diverse modalities such as vision, text, and audio to solve complex problems. However, existing approaches predominantly…

Machine Learning · Computer Science 2025-05-01 Sangyeon Cho , Jangyeong Jeon , Mingi Kim , Junyeong Kim

CLIP is a seminal multimodal model that maps images and text into a shared representation space through contrastive learning on billions of image-caption pairs. Inspired by the rapid progress of large language models (LLMs), we investigate…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Weiquan Huang , Aoqi Wu , Yifan Yang , Xufang Luo , Yuqing Yang , Usman Naseem , Chunyu Wang , Chunyu Wang , Qi Dai , Xiyang Dai , Dongdong Chen , Chong Luo , Lili Qiu , Liang Hu

Contrastive Language-Image Pre-training (CLIP) demonstrates strong potential in medical image analysis but requires substantial data and computational resources. Due to these restrictions, existing CLIP applications in medical imaging focus…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Yuexi Du , John Onofrey , Nicha C. Dvornek

Multi-modal semantic understanding requires integrating information from different modalities to extract users' real intention behind words. Most previous work applies a dual-encoder structure to separately encode image and text, but fails…

Computation and Language · Computer Science 2024-03-12 Ming Zhang , Ke Chang , Yunfang Wu

Contrastive Language-Image Pre-training (CLIP) formulates image classification as an image-to-text matching task, i.e., matching images to the corresponding natural language descriptions instead of discrete category IDs. This allows for…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Shuhuai Ren , Lei Li , Xuancheng Ren , Guangxiang Zhao , Xu Sun

Contrastive Language-Image Pre-Training (CLIP) is a popular method for learning multimodal latent spaces with well-organized semantics. Despite its wide range of applications, CLIP's latent space is known to fail at handling complex…

Machine Learning · Computer Science 2026-03-17 Raphi Kang , Yue Song , Georgia Gkioxari , Pietro Perona

Cross-modal retrieval is the task of retrieving samples of a given modality by using queries of a different one. Due to the wide range of practical applications, the problem has been mainly focused on the vision and language case, e.g. text…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Jorge Sánchez , Rodrigo Laguna

Contrastive learning methods, such as CLIP, leverage naturally paired data-for example, images and their corresponding text captions-to learn general representations that transfer efficiently to downstream tasks. While such approaches are…

Machine Learning · Computer Science 2024-11-05 Adriel Saporta , Aahlad Puli , Mark Goldstein , Rajesh Ranganath

Contrastive language image pre-training (CLIP) is an essential component of building modern vision-language foundation models. While CLIP demonstrates remarkable zero-shot performance on downstream tasks, the multi-modal feature spaces…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Shin'ya Yamaguchi , Dewei Feng , Sekitoshi Kanai , Kazuki Adachi , Daiki Chijiwa

Multimodal contrastive learning (MCL) aims to embed data from different modalities in a shared embedding space. However, empirical evidence shows that representations from different modalities occupy completely separate regions of embedding…

Machine Learning · Computer Science 2025-10-09 Lingjie Yi , Raphael Douady , Chao Chen

Although image captioning models have made significant advancements in recent years, the majority of them heavily depend on high-quality datasets containing paired images and texts which are costly to acquire. Previous works leverage the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Zhiyue Liu , Jinyuan Liu , Fanrong Ma

Multi-modal models require aligned, shared embedding spaces. However, common CLIP-based approaches need large amounts of samples and do not natively support 3D or tabular data, both of which are crucial in the medical domain. To address…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Jakob Krogh Petersen , Valdemar Licht , Mads Nielsen , Asbjørn Munk

Vision-language models have emerged as a powerful tool for previously challenging multi-modal classification problem in the medical domain. This development has led to the exploration of automated image description generation for…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Mansi Kakkar , Dattesh Shanbhag , Chandan Aladahalli , Gurunath Reddy M

Vision-Language Models (VLMs) exhibit a characteristic "cone effect" in which nonlinear encoders map embeddings into highly concentrated regions of the representation space, contributing to cross-modal separation known as the modality gap.…

Multimodal learning has shown promise in medical imaging, combining complementary modalities like images and text. Vision-language models (VLMs) capture rich diagnostic cues but often require large paired datasets and prompt- or text-based…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Banafsheh Karimian , Giulia Avanzato , Soufian Belharbi , Alexis Guichemerre , Luke McCaffrey , Mohammadhadi Shateri , Eric Granger

Existing contrastive language-image pre-training aims to learn a joint representation by matching abundant image-text pairs. However, the number of image-text pairs in medical datasets is usually orders of magnitude smaller than that in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Jiarun Liu , Hong-Yu Zhou , Cheng Li , Weijian Huang , Hao Yang , Yong Liang , Shanshan Wang