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Image-to-image translation plays a vital role in tackling various medical imaging tasks such as attenuation correction, motion correction, undersampled reconstruction, and denoising. Generative adversarial networks have been shown to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-05 Uddeshya Upadhyay , Yanbei Chen , Tobias Hepp , Sergios Gatidis , Zeynep Akata

Depth maps captured with commodity sensors are often of low quality and resolution; these maps need to be enhanced to be used in many applications. State-of-the-art data-driven methods of depth map super-resolution rely on registered pairs…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Aleksandr Safin , Maxim Kan , Nikita Drobyshev , Oleg Voynov , Alexey Artemov , Alexander Filippov , Denis Zorin , Evgeny Burnaev

Most current super-resolution methods rely on low and high resolution image pairs to train a network in a fully supervised manner. However, such image pairs are not available in real-world applications. Instead of directly addressing this…

Image and Video Processing · Electrical Eng. & Systems 2019-09-23 Andreas Lugmayr , Martin Danelljan , Radu Timofte

Over the past few years deep learning-based techniques such as Generative Adversarial Networks (GANs) have significantly improved solutions to image super-resolution and image-to-image translation problems. In this paper, we propose a…

Image and Video Processing · Electrical Eng. & Systems 2022-06-23 Aref Abedjooy , Mehran Ebrahimi

Unsupervised real world super resolution (USR) aims to restore high-resolution (HR) images given low-resolution (LR) inputs, and its difficulty stems from the absence of paired dataset. One of the most common approaches is synthesizing…

Image and Video Processing · Electrical Eng. & Systems 2022-08-23 Sangyun Lee , Sewoong Ahn , Kwangjin Yoon

Thermal Infrared (TIR) cameras are gaining popularity in many computer vision applications due to their ability to operate under low-light conditions. Images produced by TIR cameras are usually difficult for humans to perceive visually,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Adam Nyberg , Abdelrahman Eldesokey , David Bergström , David Gustafsson

Traffic sign recognition is a well-researched problem in computer vision. However, the state of the art methods works only for frequent sign classes, which are well represented in training datasets. We consider the task of rare traffic sign…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Anton Konushin , Boris Faizov , Vlad Shakhuro

Recent GAN-based architectures have been able to deliver impressive performance on the general task of image-to-image translation. In particular, it was shown that a wide variety of image translation operators may be learned from two image…

Machine Learning · Computer Science 2019-05-28 Omry Sendik , Dani Lischinski , Daniel Cohen-Or

We propose GAN-Supervised Learning, a framework for learning discriminative models and their GAN-generated training data jointly end-to-end. We apply our framework to the dense visual alignment problem. Inspired by the classic Congealing…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 William Peebles , Jun-Yan Zhu , Richard Zhang , Antonio Torralba , Alexei A. Efros , Eli Shechtman

Though recent research has achieved remarkable progress in generating realistic images with generative adversarial networks (GANs), the lack of training stability is still a lingering concern of most GANs, especially on high-resolution…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Runmin Wu , Kunyao Zhang , Lijun Wang , Yue Wang , Pingping Zhang , Huchuan Lu , Yizhou Yu

Recent image degradation estimation methods have enabled single-image super-resolution (SR) approaches to better upsample real-world images. Among these methods, explicit kernel estimation approaches have demonstrated unprecedented…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Royson Lee , Rui Li , Stylianos I. Venieris , Timothy Hospedales , Ferenc Huszár , Nicholas D. Lane

Generative Adversarial Networks (GANs) have achieved remarkable achievements in image synthesis. These successes of GANs rely on large scale datasets, requiring too much cost. With limited training data, how to stable the training process…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Ziqiang Li , Beihao Xia , Jing Zhang , Chaoyue Wang , Bin Li

Learning conditional distributions $\pi^*(\cdot|x)$ is a central problem in machine learning, which is typically approached via supervised methods with paired data $(x,y) \sim \pi^*$. However, acquiring paired data samples is often…

While Generative Adversarial Networks (GANs) achieve spectacular results on unstructured data like images, there is still a gap on tabular data, data for which state of the art supervised learning still favours to a large extent decision…

Machine Learning · Computer Science 2022-02-14 Richard Nock , Mathieu Guillame-Bert

The Generative Adversarial Networks (GAN) framework is a well-established paradigm for probability matching and realistic sample generation. While recent attention has been devoted to studying the theoretical properties of such models, a…

Machine Learning · Statistics 2020-07-30 Giulia Luise , Massimiliano Pontil , Carlo Ciliberto

With recent progress in graphics, it has become more tractable to train models on synthetic images, potentially avoiding the need for expensive annotations. However, learning from synthetic images may not achieve the desired performance due…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Ashish Shrivastava , Tomas Pfister , Oncel Tuzel , Josh Susskind , Wenda Wang , Russ Webb

In the past few years, Generative Adversarial Network (GAN) became a prevalent research topic. By defining two convolutional neural networks (G-Network and D-Network) and introducing an adversarial procedure between them during the training…

Computer Vision and Pattern Recognition · Computer Science 2017-04-27 Hengyue Pan , Hui Jiang

Generative adversarial networks (GANs) are among the most successful models for learning high-complexity, real-world distributions. However, in theory, due to the highly non-convex, non-concave landscape of the minmax training objective,…

Machine Learning · Computer Science 2023-04-04 Zeyuan Allen-Zhu , Yuanzhi Li

Generative Adversarial Networks (GANs) coupled with self-supervised tasks have shown promising results in unconditional and semi-supervised image generation. We propose a self-supervised approach (LT-GAN) to improve the generation quality…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Parth Patel , Nupur Kumari , Mayank Singh , Balaji Krishnamurthy

The current best practice for computing optimal transport (OT) is via entropy regularization and Sinkhorn iterations. This algorithm runs in quadratic time as it requires the full pairwise cost matrix, which is prohibitively expensive for…

Machine Learning · Computer Science 2022-04-06 Johannes Gasteiger , Marten Lienen , Stephan Günnemann