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Low-light conditions have an adverse impact on machine cognition, limiting the performance of computer vision systems in real life. Since low-light data is limited and difficult to annotate, we focus on image processing to enhance low-light…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Igor Morawski , Kai He , Shusil Dangi , Winston H. Hsu

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

Image enhancement is a significant research area in the fields of computer vision and image processing. In recent years, many learning-based methods for image enhancement have been developed, where the Look-up-table (LUT) has proven to be…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Weiwen Chen , Qiuhong Ke , Zinuo Li

Image recognition has recently witnessed a paradigm shift, where vision-language models are now used to perform few-shot classification based on textual prompts. Among these, the CLIP model has shown remarkable capabilities for zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Lorenzo Agnolucci , Alberto Baldrati , Francesco Todino , Federico Becattini , Marco Bertini , Alberto Del Bimbo

Fine-tuning vision-language models (VLMs) like CLIP to downstream tasks is often necessary to optimize their performance. However, a major obstacle is the limited availability of labeled data. We study the use of pseudolabels, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Cristina Menghini , Andrew Delworth , Stephen H. Bach

Low-Light Image Enhancement (LLIE) is crucial for improving both human perception and computer vision tasks. This paper addresses two challenges in zero-reference LLIE: obtaining perceptually 'good' images using the Contrastive…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Yuka Ogino , Takahiro Toizumi , Atsushi Ito

CLIP has achieved impressive zero-shot performance after pre-training on a large-scale dataset consisting of paired image-text data. Previous works have utilized CLIP by incorporating manually designed visual prompts like colored circles…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Jiedong Zhuang , Jiaqi Hu , Lianrui Mu , Rui Hu , Xiaoyu Liang , Jiangnan Ye , Haoji Hu

Treating texts as images, combining prompts with textual labels for prompt tuning, and leveraging the alignment properties of CLIP have been successfully applied in zero-shot multi-label image recognition. Nonetheless, relying solely on…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Haonan Xu , Dian Chao , Xiangyu Wu , Zhonghua Wan , Yang Yang

This paper presents a simple and effective visual prompting method for adapting pre-trained models to downstream recognition tasks. Our method includes two key designs. First, rather than directly adding together the prompt and the image,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-30 Junyang Wu , Xianhang Li , Chen Wei , Huiyu Wang , Alan Yuille , Yuyin Zhou , Cihang Xie

Large-scale contrastive vision-language pre-training has shown significant progress in visual representation learning. Unlike traditional visual systems trained by a fixed set of discrete labels, a new paradigm was introduced in…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Peng Gao , Shijie Geng , Renrui Zhang , Teli Ma , Rongyao Fang , Yongfeng Zhang , Hongsheng Li , Yu Qiao

Low-light images challenge both human perceptions and computer vision algorithms. It is crucial to make algorithms robust to enlighten low-light images for computational photography and computer vision applications such as real-time…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Shen Zheng , Gaurav Gupta

Contrastive Language-Image Pre-training (CLIP) has been shown to learn visual representations with great transferability, which achieves promising accuracy for zero-shot classification. To further improve its downstream performance,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Ziyu Guo , Renrui Zhang , Longtian Qiu , Xianzheng Ma , Xupeng Miao , Xuming He , Bin Cui

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…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Kaiyang Zhou , Jingkang Yang , Chen Change Loy , Ziwei Liu

The application of zero-shot learning in computer vision has been revolutionized by the use of image-text matching models. The most notable example, CLIP, has been widely used for both zero-shot classification and guiding generative models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Roni Paiss , Hila Chefer , Lior Wolf

Contrastive vision-language models like CLIP have shown great progress in transfer learning. In the inference stage, the proper text description, also known as prompt, needs to be carefully designed to correctly classify the given images.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Tony Huang , Jack Chu , Fangyun Wei

In this paper, we propose a novel low-light image enhancement method aimed at improving the performance of recognition models. Despite recent advances in deep learning, the recognition of images under low-light conditions remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Seitaro Ono , Yuka Ogino , Takahiro Toizumi , Atsushi Ito , Masato Tsukada

The Contrastive Language-Image Pretraining (CLIP) model has been widely used in various downstream vision tasks. The few-shot learning paradigm has been widely adopted to augment its capacity for these tasks. However, current paradigms may…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Jintao Rong , Hao Chen , Linlin Ou , Tianxiao Chen , Xinyi Yu , Yifan Liu

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

In low-light environments, the performance of computer vision algorithms often deteriorates significantly, adversely affecting key vision tasks such as segmentation, detection, and classification. With the rapid advancement of deep…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Fangxue Liu , Lei Fan

Large-scale vision-language models (VLMs) such as CLIP exhibit strong zero-shot generalization, but adapting them to downstream tasks typically requires costly labeled data. Existing unsupervised self-training methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Qian-Wei Wang , Guanghao Meng , Ren Cai , Yaguang Song , Shu-Tao Xia
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