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The increase of web-scale weakly labelled image-text pairs have greatly facilitated the development of large-scale vision-language models (e.g., CLIP), which have shown impressive generalization performance over a series of downstream…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Lianyu Hu , Tongkai Shi , Liqing Gao , Zekang Liu , Wei Feng

Recent work has shown that self-supervised pre-training leads to improvements over supervised learning on challenging visual recognition tasks. CLIP, an exciting new approach to learning with language supervision, demonstrates promising…

Computer Vision and Pattern Recognition · Computer Science 2021-12-24 Norman Mu , Alexander Kirillov , David Wagner , Saining Xie

The popularity of Contrastive Language-Image Pre-training (CLIP) has propelled its application to diverse downstream vision tasks. To improve its capacity on downstream tasks, few-shot learning has become a widely-adopted technique.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Xiangyang Zhu , Renrui Zhang , Bowei He , Aojun Zhou , Dong Wang , Bin Zhao , Peng Gao

Image-text contrastive learning models such as CLIP have demonstrated strong task transfer ability. The high generality and usability of these visual models is achieved via a web-scale data collection process to ensure broad concept…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Haotian Liu , Kilho Son , Jianwei Yang , Ce Liu , Jianfeng Gao , Yong Jae Lee , Chunyuan Li

Pre-trained large models for multimodal contrastive learning, such as CLIP, have been widely recognized in the industry as highly susceptible to data-poisoned backdoor attacks. This poses significant risks to downstream model training. In…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Yuan Xun , Siyuan Liang , Xiaojun Jia , Xinwei Liu , Xiaochun Cao

For downstream applications of vision-language pre-trained models, there has been significant interest in constructing effective prompts. Existing works on prompt engineering, which either require laborious manual designs or optimize the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Xinyang Liu , Dongsheng Wang , Bowei Fang , Miaoge Li , Zhibin Duan , Yishi Xu , Bo Chen , Mingyuan Zhou

Contrastive Language-Image Pre-training (CLIP) has demonstrated remarkable generalization ability and strong performance across a wide range of vision-language tasks. However, due to the lack of region-level supervision, CLIP exhibits…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Haoxi Zeng , Haoxuan Li , Yi Bin , Pengpeng Zeng , Xing Xu , Yang Yang , Heng Tao Shen

The canonical approach to video action recognition dictates a neural model to do a classic and standard 1-of-N majority vote task. They are trained to predict a fixed set of predefined categories, limiting their transferable ability on new…

Computer Vision and Pattern Recognition · Computer Science 2021-09-20 Mengmeng Wang , Jiazheng Xing , Yong Liu

Vision-Language Models (VLMs), such as CLIP, have achieved impressive zero-shot recognition performance but remain highly susceptible to adversarial perturbations, posing significant risks in safety-critical scenarios. Previous…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Zhiwei Li , Yitian Pang , Weining Wang , Zhenan Sun , Qi Li

Traffic classification is vital for cybersecurity, yet encrypted traffic poses significant challenges. We present PacketCLIP, a multi-modal framework combining packet data with natural language semantics through contrastive pretraining and…

Cryptography and Security · Computer Science 2025-03-06 Ryozo Masukawa , Sanggeon Yun , Sungheon Jeong , Wenjun Huang , Yang Ni , Ian Bryant , Nathaniel D. Bastian , Mohsen Imani

We present SynthCLIP, a CLIP model trained on entirely synthetic text-image pairs. Leveraging recent text-to-image (TTI) networks and large language models (LLM), we generate synthetic datasets of images and corresponding captions at scale,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Hasan Abed Al Kader Hammoud , Hani Itani , Fabio Pizzati , Philip Torr , Adel Bibi , Bernard Ghanem

Recently, large-scale Contrastive Language-Image Pre-training (CLIP) has attracted unprecedented attention for its impressive zero-shot recognition ability and excellent transferability to downstream tasks. However, CLIP is quite…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Yangguang Li , Feng Liang , Lichen Zhao , Yufeng Cui , Wanli Ouyang , Jing Shao , Fengwei Yu , Junjie Yan

Contrastive Language-Image Pre-training (CLIP) stands as one of the most effective and scalable methods for training transferable vision models using paired image and text data. CLIP models are trained using contrastive loss, which…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Lijie Fan , Dilip Krishnan , Phillip Isola , Dina Katabi , Yonglong Tian

Large-scale pre-trained multi-modal models (e.g., CLIP) demonstrate strong zero-shot transfer capability in many discriminative tasks. Their adaptation to zero-shot image-conditioned text generation tasks has drawn increasing interest.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Wei Li , Linchao Zhu , Longyin Wen , Yi Yang

Despite significant advancements in caption generation, existing evaluation metrics often fail to capture the full quality or fine-grained details of captions. This is mainly due to their reliance on non-specific human-written references or…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Sara Sarto , Nicholas Moratelli , Marcella Cornia , Lorenzo Baraldi , Rita Cucchiara

Contrastive language-image pre-training, CLIP for short, has gained increasing attention for its potential in various scenarios. In this paper, we propose EVA-CLIP, a series of models that significantly improve the efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Quan Sun , Yuxin Fang , Ledell Wu , Xinlong Wang , Yue Cao

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

Contrastive language-image pretraining (CLIP) using image-text pairs has achieved impressive results on image classification in both zero-shot and transfer learning settings. However, we show that directly applying such models to recognize…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Yiwu Zhong , Jianwei Yang , Pengchuan Zhang , Chunyuan Li , Noel Codella , Liunian Harold Li , Luowei Zhou , Xiyang Dai , Lu Yuan , Yin Li , Jianfeng Gao

Photo search, the task of retrieving images based on textual queries, has witnessed significant advancements with the introduction of CLIP (Contrastive Language-Image Pretraining) model. CLIP leverages a vision-language pre training…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Naresh Kumar Lahajal , Harini S

We propose CLIP-Lite, an information efficient method for visual representation learning by feature alignment with textual annotations. Compared to the previously proposed CLIP model, CLIP-Lite requires only one negative image-text sample…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Aman Shrivastava , Ramprasaath R. Selvaraju , Nikhil Naik , Vicente Ordonez
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