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Images acquired by computer vision systems under low light conditions have multiple characteristics like high noise, lousy illumination, reflectance, and bad contrast, which make object detection tasks difficult. Much work has been done to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Winston Chen , Tejas Shah

We propose a novel prompt tuning method called CoAPT(Context Attribute words in Prompt Tuning) for few/zero-shot image classification. The core motivation is that attributes are descriptive words with rich information about a given concept.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Gun Lee , Subin An , Sungyong Baik , Soochahn Lee

Low-level enhancement and high-level visual understanding in low-light vision have traditionally been treated separately. Low-light enhancement improves image quality for downstream tasks, but existing methods rely on physical or geometric…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Sen Wang , Shao Zeng , Tianjun Gu , Zhizhong Zhang , Ruixin Zhang , Shouhong Ding , Jingyun Zhang , Jun Wang , Xin Tan , Yuan Xie , Lizhuang Ma

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

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

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

Image acquisition in low-light conditions suffers from poor quality and significant degradation in visual aesthetics. This affects the visual perception of the acquired image and the performance of various computer vision and image…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Sumit Shekhar , Max Reimann , Amir Semmo , Sebastian Pasewaldt , Jürgen Döllner , Matthias Trapp

Vision-language models like CLIP are widely used in zero-shot image classification due to their ability to understand various visual concepts and natural language descriptions. However, how to fully leverage CLIP's unprecedented human-like…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Bang An , Sicheng Zhu , Michael-Andrei Panaitescu-Liess , Chaithanya Kumar Mummadi , Furong Huang

Low-light image enhancement is a crucial preprocessing task for some complex vision tasks. Target detection, image segmentation, and image recognition outcomes are all directly impacted by the impact of image enhancement. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Mengfei Wu , Xucheng Xue , Taiji Lan , Xinwei Xu

The following three factors restrict the application of existing low-light image enhancement methods: unpredictable brightness degradation and noise, inherent gap between metric-favorable and visual-friendly versions, and the limited paired…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Shuzhou Yang , Moxuan Ding , Yanmin Wu , Zihan Li , Jian Zhang

Few-shot segmentation remains challenging due to the limitations of its labeling information for unseen classes. Most previous approaches rely on extracting high-level feature maps from the frozen visual encoder to compute the pixel-wise…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Jin Wang , Bingfeng Zhang , Jian Pang , Honglong Chen , Weifeng Liu

Contrastively trained vision-language models have achieved remarkable progress in vision and language representation learning, leading to state-of-the-art models for various downstream multimodal tasks. However, recent research has…

Computation and Language · Computer Science 2023-10-26 Harman Singh , Pengchuan Zhang , Qifan Wang , Mengjiao Wang , Wenhan Xiong , Jingfei Du , Yu Chen

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

Contrastive Language-Image Pretraining (CLIP) has been widely used in vision tasks. Notably, CLIP has demonstrated promising performance in few-shot learning (FSL). However, existing CLIP-based methods in training-free FSL (i.e., without…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Yayuan Li , Jintao Guo , Lei Qi , Wenbin Li , Yinghuan Shi

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

Imaging in low-light environments is challenging due to reduced scene radiance, which leads to elevated sensor noise and reduced color saturation. Most learning-based low-light enhancement methods rely on paired training data captured under…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Maria Pilligua , David Serrano-Lozano , Pai Peng , Ramon Baldrich , Michael S. Brown , Javier Vazquez-Corral

Illumination using correlated photon sources has been established as an approach to allowing high-fidelity images to be reconstructed from noisy camera frames by taking advantage of the knowledge that signal photons are spatially correlated…

Measuring the perception of visual content is a long-standing problem in computer vision. Many mathematical models have been developed to evaluate the look or quality of an image. Despite the effectiveness of such tools in quantifying…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Jianyi Wang , Kelvin C. K. Chan , Chen Change Loy

In recent years, the demand of image compression models for machine vision has increased dramatically. However, the training frameworks of image compression still focus on the vision of human, maintaining the excessive perceptual details,…

Image and Video Processing · Electrical Eng. & Systems 2025-12-24 Hyeonjin Lee , Jun-Hyuk Kim , Jong-Seok Lee

Recent deep learning-based methods for lossy image compression achieve competitive rate-distortion performance through extensive end-to-end training and advanced architectures. However, emerging applications increasingly prioritize semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Ruiqi Shen , Haotian Wu , Wenjing Zhang , Jiangjing Hu , Deniz Gunduz