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Multi-modal Large Language Models (MLLMs) excel in vision-language tasks but remain vulnerable to visual adversarial perturbations that can induce hallucinations, manipulate responses, or bypass safety mechanisms. Existing methods seek to…

计算机视觉与模式识别 · 计算机科学 2025-02-04 Hashmat Shadab Malik , Fahad Shamshad , Muzammal Naseer , Karthik Nandakumar , Fahad Khan , Salman Khan

Besides image classification, Contrastive Language-Image Pre-training (CLIP) has accomplished extraordinary success for a wide range of vision tasks, including object-level and 3D space understanding. However, it's still challenging to…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Renrui Zhang , Ziyao Zeng , Ziyu Guo , Yafeng Li

Vision-language (V+L) pretraining models have achieved great success in supporting multimedia applications by understanding the alignments between images and text. While existing vision-language pretraining models primarily focus on…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Manling Li , Ruochen Xu , Shuohang Wang , Luowei Zhou , Xudong Lin , Chenguang Zhu , Michael Zeng , Heng Ji , Shih-Fu Chang

Vision-Language Pretraining (VLP) has achieved remarkable success across various downstream tasks, but such gains are largely driven by scaling up on training data. Yet, literature methods treat image-text pairs as isolated training…

计算机视觉与模式识别 · 计算机科学 2025-11-06 Wenbo Lu

Vision-Language Models (VLMs) have shown strong performance in zero-shot image classification tasks. However, existing methods, including Contrastive Language-Image Pre-training (CLIP), all rely on annotated text-to-image pairs for aligning…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Dianxing Shi , Dingjie Fu , Yuqiao Liu , Jun Wang

Contrastive Language-Image Pretraining (CLIP) has demonstrated great zero-shot performance for matching images and text. However, it is still challenging to adapt vision-lanaguage pretrained models like CLIP to compositional image and text…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Kenan Jiang , Xuehai He , Ruize Xu , Xin Eric Wang

Contrastive language-image pre-training (CLIP) is a powerful vision-language model that has shown great benefits for various tasks. However, we have identified some issues with its explainability, which undermine its credibility and limit…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Yi Li , Hualiang Wang , Yiqun Duan , Jiheng Zhang , Xiaomeng Li

Contrastive Language-Image Pretraining (CLIP) models excel at understanding image-text relationships but struggle with adapting to new data without forgetting prior knowledge. To address this, models are typically fine-tuned using both new…

机器学习 · 计算机科学 2026-05-06 Ryan King , Gang Li , Bobak Mortazavi , Tianbao Yang

Pretrained vision-language models (VLMs) like CLIP exhibit exceptional generalization across diverse downstream tasks. While recent studies reveal their vulnerability to adversarial attacks, research to date has primarily focused on…

计算机视觉与模式识别 · 计算机科学 2024-11-13 Wanqi Zhou , Shuanghao Bai , Danilo P. Mandic , Qibin Zhao , Badong Chen

Contrastive Language-Image Pre-training (CLIP) has recently shown great promise in pixel-level zero-shot learning tasks. However, existing approaches utilizing CLIP's text and patch embeddings to generate semantic masks often misidentify…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Jingyao Li , Pengguang Chen , Shengju Qian , Shu Liu , Jiaya Jia

Self-supervised models trained with a contrastive loss such as CLIP have shown to be very powerful in zero-shot classification settings. However, to be used as a zero-shot classifier these models require the user to provide new captions…

机器学习 · 计算机科学 2022-10-31 Bhawesh Kumar , Anil Palepu , Rudraksh Tuwani , Andrew Beam

Cross-modal pre-training has shown impressive performance on a wide range of downstream tasks, benefiting from massive image-text pairs collected from the Internet. In practice, online data are growing constantly, highlighting the…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Xinchi Deng , Han Shi , Runhui Huang , Changlin Li , Hang Xu , Jianhua Han , James Kwok , Shen Zhao , Wei Zhang , Xiaodan Liang

Self-supervised contrastive learning (CL) effectively learns transferable representations from unlabeled data containing images or image-text pairs but suffers vulnerability to data poisoning backdoor attacks (DPCLs). An adversary can…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Tuo Chen , Jie Gui , Minjing Dong , Ju Jia , Lanting Fang , Jian Liu

The objective in this paper is to improve the performance of text-to-image retrieval. To this end, we introduce a new framework that can boost the performance of large-scale pre-trained vision-language models, so that they can be used for…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Guanqi Zhan , Yuanpei Liu , Kai Han , Weidi Xie , Andrew Zisserman

Vision language (VL) models like CLIP are robust to natural distribution shifts, in part because CLIP learns on unstructured data using a technique called caption supervision; the model inteprets image-linked texts as ground-truth labels.…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Benjamin Feuer , Ameya Joshi , Chinmay Hegde

In recent years there has been enormous interest in vision-language models trained using self-supervised objectives. However, the use of large-scale datasets scraped from the web for training also makes these models vulnerable to potential…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Alvi Md Ishmam , Christopher Thomas

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…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Shuhuai Ren , Lei Li , Xuancheng Ren , Guangxiang Zhao , Xu Sun

We present a comprehensive experimental study on pretrained feature extractors for visual out-of-distribution (OOD) detection, focusing on adapting contrastive language-image pretrained (CLIP) models. Without fine-tuning on the training…

计算机视觉与模式识别 · 计算机科学 2023-11-10 Nikolas Adaloglou , Felix Michels , Tim Kaiser , Markus Kollmann

Large pre-trained vision-language models like CLIP have shown great potential in learning representations that are transferable across a wide range of downstream tasks. Different from the traditional representation learning that is based…

计算机视觉与模式识别 · 计算机科学 2022-10-07 Kaiyang Zhou , Jingkang Yang , Chen Change Loy , Ziwei Liu

Contrastive vision-language models, such as CLIP, have garnered considerable attention for various downstream tasks, mainly due to the remarkable ability of the learned features for generalization. However, the features they learned often…

计算机视觉与模式识别 · 计算机科学 2025-04-24 Yichao Cai , Yuhang Liu , Zhen Zhang , Javen Qinfeng Shi