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Deep learning algorithms have recently achieved promising deraining performances on both the natural and synthetic rainy datasets. As an essential low-level pre-processing stage, a deraining network should clear the rain streaks and…

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

Image deraining is a fundamental, yet not well-solved problem in computer vision and graphics. The traditional image deraining approaches commonly behave ineffectively in medium and heavy rain removal, while the learning-based ones lead to…

Image and Video Processing · Electrical Eng. & Systems 2019-08-29 Sen Deng , Mingqiang Wei , Jun Wang , Luming Liang , Haoran Xie , Meng Wang

Deep neural network based methods are the state of the art in various image restoration problems. Standard supervised learning frameworks require a set of noisy measurement and clean image pairs for which a distance between the output of…

Image and Video Processing · Electrical Eng. & Systems 2021-03-31 Rihuan Ke , Carola-Bibiane Schönlieb

Recently, self-supervised methods show remarkable achievements in image-level representation learning. Nevertheless, their image-level self-supervisions lead the learned representation to sub-optimal for dense prediction tasks, such as…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Yunsung Lee , Teakgyu Hong , Han-Cheol Cho , Junbum Cha , Seungryong Kim

Removing rain streaks from a single image has been drawing considerable attention as rain streaks can severely degrade the image quality and affect the performance of existing outdoor vision tasks. While recent CNN-based derainers have…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Tianyu Wang , Xin Yang , Ke Xu , Shaozhe Chen , Qiang Zhang , Rynson Lau

Rain removal aims to remove the rain streaks on rain images. The state-of-the-art methods are mostly based on Convolutional Neural Network~(CNN). However, as CNN is not equivariant to object rotation, these methods are unsuitable for…

Image and Video Processing · Electrical Eng. & Systems 2020-09-08 Hong Liu , Hanrong Ye , Xia Li , Wei Shi , Mengyuan Liu , Qianru Sun

Since rain streaks show a variety of shapes and directions, learning the degradation representation is extremely challenging for single image deraining. Existing methods are mainly targeted at designing complicated modules to implicitly…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Yuhong He , Long Peng , Lu Wang , Jun Cheng

Contrastive learning, a dominant self-supervised technique, emphasizes similarity in representations between augmentations of the same input and dissimilarity for different ones. Although low contrastive loss often correlates with high…

Machine Learning · Computer Science 2023-11-22 Yunzhe Zhang , Yao Lu , Qi Xuan

Deep learning approaches in image processing predominantly resort to supervised learning. A majority of methods for image denoising are no exception to this rule and hence demand pairs of noisy and corresponding clean images. Only recently…

Image and Video Processing · Electrical Eng. & Systems 2020-10-02 Priyatham Kattakinda , A. N. Rajagopalan

Unsupervised learning has recently made exceptional progress because of the development of more effective contrastive learning methods. However, CNNs are prone to depend on low-level features that humans deem non-semantic. This dependency…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Songwei Ge , Shlok Mishra , Haohan Wang , Chun-Liang Li , David Jacobs

Image deraining holds great potential for enhancing the vision of autonomous vehicles in rainy conditions, contributing to safer driving. Previous works have primarily focused on employing a single network architecture to generate derained…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Ningning Xu , Jidong J. Yang

Unsupervised image retrieval aims to learn the important visual characteristics without any given level to retrieve the similar images for a given query image. The Convolutional Neural Network (CNN)-based approaches have been extensively…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Ayush Dubey , Shiv Ram Dubey , Satish Kumar Singh , Wei-Ta Chu

Single-image deraining is rather challenging due to the unknown rain model. Existing methods often make specific assumptions of the rain model, which can hardly cover many diverse circumstances in the real world, making them have to employ…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Qing Guo , Jingyang Sun , Felix Juefei-Xu , Lei Ma , Xiaofei Xie , Wei Feng , Yang Liu

Single image deraining task is still a very challenging task due to its ill-posed nature in reality. Recently, researchers have tried to fix this issue by training the CNN-based end-to-end models, but they still cannot extract the negative…

Image and Video Processing · Electrical Eng. & Systems 2019-08-29 Yanyan Wei , Zhao Zhang , Haijun Zhang , Richang Hong , Meng Wang

Current supervised cross-domain image retrieval methods can achieve excellent performance. However, the cost of data collection and labeling imposes an intractable barrier to practical deployment in real applications. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Conghui Hu , Gim Hee Lee

Since rainy weather always degrades image quality and poses significant challenges to most computer vision-based intelligent systems, image de-raining has been a hot research topic. Fortunately, in a rainy light field (LF) image, background…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Tao Yan , Weijiang He , Chenglong Wang , Cihang Wei , Xiangjie Zhu , Yinghui Wang , Rynson W. H. Lau

Image deraining is a new challenging problem in real-world applications, such as autonomous vehicles. In a bad weather condition of heavy rainfall, raindrops, mainly hitting glasses or windshields, can significantly reduce observation…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Duc Manh Nguyen , Sang-Woong Lee

Single image rain streak removal is an extremely challenging problem due to the presence of non-uniform rain densities in images. We present a novel density-aware multi-stream densely connected convolutional neural network-based algorithm,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-22 He Zhang , Vishal M. Patel

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Detecting lane markings in road scenes poses a challenge due to their intricate nature, which is susceptible to unfavorable conditions. While lane markings have strong shape priors, their visibility is easily compromised by lighting…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Ali Zoljodi , Sadegh Abadijou , Mina Alibeigi , Masoud Daneshtalab
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