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Recent developments in deep learning have revolutionized the paradigm of image restoration. However, its applications on real image denoising are still limited, due to its sensitivity to training data and the complex nature of real image…

计算机视觉与模式识别 · 计算机科学 2019-05-06 Jin Zeng , Jiahao Pang , Wenxiu Sun , Gene Cheung

There has been appreciable progress in unsupervised network representation learning (UNRL) approaches over graphs recently with flexible random-walk approaches, new optimization objectives and deep architectures. However, there is no common…

机器学习 · 计算机科学 2020-03-12 Megha Khosla , Vinay Setty , Avishek Anand

Most advances in single image de-raining meet a key challenge, which is removing rain streaks with different scales and shapes while preserving image details. Existing single image de-raining approaches treat rain-streak removal as a…

计算机视觉与模式识别 · 计算机科学 2019-09-27 Zhe Huang , Weijiang Yu , Wayne Zhang , Litong Feng , Nong Xiao

CNNs and Self attention have achieved great success in multimedia applications for dynamic association learning of self-attention and convolution in image restoration. However, CNNs have at least two shortcomings: 1) limited receptive…

计算机视觉与模式识别 · 计算机科学 2023-11-10 Kui Jiang , Xuemei Jia , Wenxin Huang , Wenbin Wang , Zheng Wang , Junjun Jiang

Assume you encounter an inverse problem that shall be solved for a large number of data, but no ground-truth data is available. To emulate this encounter, in this study, we assume it is unknown how to solve the imaging problem of Computed…

Learning with neural networks from a continuous stream of visual information presents several challenges due to the non-i.i.d. nature of the data. However, it also offers novel opportunities to develop representations that are consistent…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Simone Marullo , Matteo Tiezzi , Marco Gori , Stefano Melacci

Most existing non-blind restoration methods are based on the assumption that a precise degradation model is known. As the degradation process can only be partially known or inaccurately modeled, images may not be well restored. Rain streak…

计算机视觉与模式识别 · 计算机科学 2019-07-11 Dongwei Ren , Wangmeng Zuo , David Zhang , Lei Zhang , Ming-Hsuan Yang

A general framework of unsupervised learning for combinatorial optimization (CO) is to train a neural network (NN) whose output gives a problem solution by directly optimizing the CO objective. Albeit with some advantages over traditional…

机器学习 · 计算机科学 2023-01-24 Haoyu Wang , Pan Li

Deep Convolutional Neural Networks (CNN) enforces supervised information only at the output layer, and hidden layers are trained by back propagating the prediction error from the output layer without explicit supervision. We propose a…

计算机视觉与模式识别 · 计算机科学 2016-06-07 Zhuolin Jiang , Yaming Wang , Larry Davis , Walt Andrews , Viktor Rozgic

In real-world environments, outdoor imaging systems are often affected by disturbances such as rain degradation. Especially, in nighttime driving scenes, insufficient and uneven lighting shrouds the scenes in darkness, resulting degradation…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Cidan Shi , Lihuang Fang , Han Wu , Xiaoyu Xian , Yukai Shi , Liang Lin

Training networks to perform metric relocalization traditionally requires accurate image correspondences. In practice, these are obtained by restricting domain coverage, employing additional sensors, or capturing large multi-view datasets.…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Mike Kasper , Fernando Nobre , Christoffer Heckman , Nima Keivan

Owing to flexible architectures of deep convolutional neural networks (CNNs), CNNs are successfully used for image denoising. However, they suffer from the following drawbacks: (i) deep network architecture is very difficult to train. (ii)…

计算机视觉与模式识别 · 计算机科学 2019-03-05 Chunwei Tian , Yong Xu , Lunke Fei , Junqian Wang , Jie Wen , Nan Luo

This paper presents an unsupervised method to learn a neural network, namely an explainer, to interpret a pre-trained convolutional neural network (CNN), i.e., explaining knowledge representations hidden in middle conv-layers of the CNN.…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Quanshi Zhang , Yu Yang , Yuchen Liu , Ying Nian Wu , Song-Chun Zhu

Convolutional neural networks (CNNs) have shown outstanding performance on image denoising with the help of large-scale datasets. Earlier methods naively trained a single CNN with many pairs of clean-noisy images. However, the conditional…

图像与视频处理 · 电气工程与系统科学 2021-04-05 Jae Woong Soh , Nam Ik Cho

Self-supervised models have been shown to produce comparable or better visual representations than their supervised counterparts when trained offline on unlabeled data at scale. However, their efficacy is catastrophically reduced in a…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Enrico Fini , Victor G. Turrisi da Costa , Xavier Alameda-Pineda , Elisa Ricci , Karteek Alahari , Julien Mairal

Deep generative frameworks including GANs and normalizing flow models have proven successful at filling in missing values in partially observed data samples by effectively learning -- either explicitly or implicitly -- complex,…

机器学习 · 计算机科学 2021-04-06 Edgar A. Bernal

Snow degradations present formidable challenges to the advancement of computer vision tasks by the undesirable corruption in outdoor scenarios. While current deep learning-based desnowing approaches achieve success on synthetic benchmark…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Hongtao Wu , Yijun Yang , Angelica I Aviles-Rivero , Jingjing Ren , Sixiang Chen , Haoyu Chen , Lei Zhu

Image smoothing represents a fundamental component of many disparate computer vision and graphics applications. In this paper, we present a unified unsupervised (label-free) learning framework that facilitates generating flexible and…

计算机视觉与模式识别 · 计算机科学 2018-11-08 Qingnan Fan , Jiaolong Yang , David Wipf , Baoquan Chen , Xin Tong

Restoration of images contaminated by different adverse weather conditions such as fog, snow, and rain is a challenging task due to the varying nature of the weather conditions. Most of the existing methods focus on any one particular…

计算机视觉与模式识别 · 计算机科学 2025-07-28 Kotha Kartheek , Lingamaneni Gnanesh Chowdary , Snehasis Mukherjee

Learning to reconstruct depths in a single image by watching unlabeled videos via deep convolutional network (DCN) is attracting significant attention in recent years. In this paper, we introduce a surface normal representation for…

计算机视觉与模式识别 · 计算机科学 2017-11-13 Zhenheng Yang , Peng Wang , Wei Xu , Liang Zhao , Ramakant Nevatia