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Recent advances in pre-training vision-language models like CLIP have shown great potential in learning transferable visual representations. Nonetheless, for downstream inference, CLIP-like models suffer from either 1) degraded accuracy and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Feng Wang , Manling Li , Xudong Lin , Hairong Lv , Alexander G. Schwing , Heng Ji

Recent Vision-Language Pretrained (VLP) models have become the backbone for many downstream tasks, but they are utilized as frozen model without learning. Prompt learning is a method to improve the pre-trained VLP model by adding a…

Computation and Language · Computer Science 2024-01-17 Youngjae Cho , HeeSun Bae , Seungjae Shin , Yeo Dong Youn , Weonyoung Joo , Il-Chul Moon

Large pretrained vision-language models like CLIP have shown promising generalization capability, but may struggle in specialized domains (e.g., satellite imagery) or fine-grained classification (e.g., car models) where the visual concepts…

Machine Learning · Computer Science 2024-11-01 Chen Huang , Skyler Seto , Samira Abnar , David Grangier , Navdeep Jaitly , Josh Susskind

Vision-language pre-trained models (VLMs) such as CLIP have demonstrated remarkable zero-shot generalization, and prompt learning has emerged as an efficient alternative to full fine-tuning. However, existing methods often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Zhaolong Wang , Tongfeng Sun , Mingzheng Du , Yachao Huang

Currently, low-light conditions present a significant challenge for machine cognition. In this paper, rather than optimizing models by assuming that human and machine cognition are correlated, we use zero-reference low-light enhancement to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Igor Morawski , Kai He , Shusil Dangi , Winston H. Hsu

Vision-language models (VLMs), such as CLIP, have shown strong generalization under zero-shot settings, yet adapting them to downstream tasks with limited supervision remains a significant challenge. Existing multi-modal prompt learning…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Silin Cheng , Kai Han

Vision-language models (VLMs) pre-trained on web-scale data exhibit promising zero-shot generalization but often suffer from semantic misalignment due to domain gaps between pre-training and downstream tasks. Existing approaches primarily…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xiaojie Yin , Qilong Wang , Qinghua Hu

Prompt tuning based on Context Optimization (CoOp) effectively adapts visual-language models (VLMs) to downstream tasks by inferring additional learnable prompt tokens. However, these tokens are less discriminative as they are independent…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Hantao Yao , Rui Zhang , Lu Yu , Yongdong Zhang , Changsheng Xu

Vision-language models such as CLIP learn a generic text-image embedding from large-scale training data. A vision-language model can be adapted to a new classification task through few-shot prompt tuning. We find that such a prompt tuning…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Cheng-En Wu , Yu Tian , Haichao Yu , Heng Wang , Pedro Morgado , Yu Hen Hu , Linjie Yang

We focus on domain and class generalization problems in analyzing optical remote sensing images, using the large-scale pre-trained vision-language model (VLM), CLIP. While contrastively trained VLMs show impressive zero-shot generalization…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Avigyan Bhattacharya , Mainak Singha , Ankit Jha , Biplab Banerjee

Prompt learning has emerged as an efficient and effective approach for transferring foundational Vision-Language Models (e.g., CLIP) to downstream tasks. However, current methods tend to overfit to seen categories, thereby limiting their…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Chen Xu , Yuhan Zhu , Guozhen Zhang , Haocheng Shen , Yixuan Liao , Xiaoxin Chen , Gangshan Wu , Limin Wang

We introduce Perception Encoder (PE), a state-of-the-art vision encoder for image and video understanding trained via simple vision-language learning. Traditionally, vision encoders have relied on a variety of pretraining objectives, each…

We propose a novel unsupervised backlit image enhancement method, abbreviated as CLIP-LIT, by exploring the potential of Contrastive Language-Image Pre-Training (CLIP) for pixel-level image enhancement. We show that the open-world CLIP…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Zhexin Liang , Chongyi Li , Shangchen Zhou , Ruicheng Feng , Chen Change Loy

Current pre-trained vision-language models, such as CLIP, have demonstrated remarkable zero-shot generalization capabilities across various downstream tasks. However, their performance significantly degrades when test inputs exhibit…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Junhui Yin , Xinyu Zhang , Lin Wu , Xiaojie Wang

Recently, Vision-Language foundation models like CLIP and ALIGN, which are pre-trained on large-scale data have shown remarkable zero-shot generalization to diverse datasets with different classes and even domains. In this work, we take a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Debarshi Brahma , Anuska Roy , Soma Biswas

In recent years, prompt tuning has proven effective in adapting pre-trained vision-language models to downstream tasks. These methods aim to adapt the pre-trained models by introducing learnable prompts while keeping pre-trained weights…

Computer Vision and Pattern Recognition · Computer Science 2023-11-13 Dongjun Lee , Seokwon Song , Jihee Suh , Joonmyung Choi , Sanghyeok Lee , Hyunwoo J. Kim

With the emergence of large pre-trained vison-language model like CLIP, transferable representations can be adapted to a wide range of downstream tasks via prompt tuning. Prompt tuning tries to probe the beneficial information for…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Yinghui Xing , Qirui Wu , De Cheng , Shizhou Zhang , Guoqiang Liang , Peng Wang , Yanning Zhang

In recent years, soft prompt learning methods have been proposed to fine-tune large-scale vision-language pre-trained models for various downstream tasks. These methods typically combine learnable textual tokens with class tokens as input…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Yingjie Tian , Yiqi Wang , Xianda Guo , Zheng Zhu , Long Chen

Prompt tuning, like CoOp, has recently shown promising vision recognizing and transfer learning ability on various downstream tasks with the emergence of large pre-trained vision-language models like CLIP. However, we identify that existing…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Yongzhu Miao , Shasha Li , Jintao Tang , Ting Wang

Recent advances in pre-training vision-language models (VLMs), e.g., contrastive language-image pre-training (CLIP) methods, have shown great potential in learning out-of-distribution (OOD) representations. Despite showing competitive…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Min Zhang , Bo Jiang , Jie Zhou , Yimeng Liu , Xin Lin