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Deep neural networks for image quality enhancement typically need large quantities of highly-curated training data comprising pairs of low-quality images and their corresponding high-quality images. While high-quality image acquisition is…

Image and Video Processing · Electrical Eng. & Systems 2021-06-30 Uddeshya Upadhyay , Suyash Awate

Pan-sharpening aims at fusing a low-resolution (LR) multi-spectral (MS) image and a high-resolution (HR) panchromatic (PAN) image acquired by a satellite to generate an HR MS image. Many deep learning based methods have been developed in…

Image and Video Processing · Electrical Eng. & Systems 2021-06-17 Huanyu Zhou , Qingjie Liu , Yunhong Wang

Generative Adversarial Networks (GANs) have proven to be a powerful tool in generating artistic images, capable of mimicking the styles of renowned painters, such as Claude Monet. This paper introduces a tiered GAN model to progressively…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 FNU Neha , Deepshikha Bhati , Deepak Kumar Shukla , Md Amiruzzaman

This paper presents a methodology and workflow that overcome the limitations of the conventional Generative Adversarial Networks (GANs) for geological facies modeling. It attempts to improve the training stability and guarantee the…

Machine Learning · Computer Science 2019-09-25 Lingchen Zhu , Tuanfeng Zhang

The fact that image datasets are often imbalanced poses an intense challenge for deep learning techniques. In this paper, we propose a method to restore the balance in imbalanced images, by coalescing two concurrent methods, generative…

Machine Learning · Computer Science 2020-04-09 Pourya Shamsolmoali , Masoumeh Zareapoor , Linlin Shen , Abdul Hamid Sadka , Jie Yang

Generative moment matching network (GMMN) is a deep generative model that differs from Generative Adversarial Network (GAN) by replacing the discriminator in GAN with a two-sample test based on kernel maximum mean discrepancy (MMD).…

Machine Learning · Computer Science 2017-11-28 Chun-Liang Li , Wei-Cheng Chang , Yu Cheng , Yiming Yang , Barnabás Póczos

Machine learning provides a novel avenue for the study of experimental realizations of many-body systems, and has recently been proven successful in analyzing properties of experimental data of ultracold quantum gases. We here show that…

Computational Physics · Physics 2021-09-29 Corneel Casert , Kyle Mills , Tom Vieijra , Jan Ryckebusch , Isaac Tamblyn

In the context of Earth observation, change detection boils down to comparing images acquired at different times by sensors of possibly different spatial and/or spectral resolutions or different modalities (e.g., optical or radar). Even…

Image and Video Processing · Electrical Eng. & Systems 2023-11-30 Jin-Ju Wang , Nicolas Dobigeon , Marie Chabert , Ding-Cheng Wang , Ting-Zhu Huang , Jie Huang

We propose a framework of generative adversarial networks with multiple discriminators, which collaborate to represent a real dataset more effectively. Our approach facilitates learning a generator consistent with the underlying data…

Machine Learning · Computer Science 2024-04-04 Jinyoung Choi , Bohyung Han

In ill-posed imaging inverse problems, there can exist many hypotheses that fit both the observed measurements and prior knowledge of the true image. Rather than returning just one hypothesis of that image, posterior samplers aim to explore…

Image and Video Processing · Electrical Eng. & Systems 2024-11-04 Matthew C. Bendel , Rizwan Ahmad , Philip Schniter

One of the main challenges in the parametrization of geological models is the ability to capture complex geological structures often observed in the subsurface. In recent years, generative adversarial networks (GAN) were proposed as an…

Machine Learning · Statistics 2019-04-10 Shing Chan , Ahmed H. Elsheikh

Realistic hyperspectral image (HSI) super-resolution (SR) techniques aim to generate a high-resolution (HR) HSI with higher spectral and spatial fidelity from its low-resolution (LR) counterpart. The generative adversarial network (GAN) has…

Image and Video Processing · Electrical Eng. & Systems 2022-10-05 Yue Shi , Liangxiu Han , Lianghao Han , Sheng Chang , Tongle Hu , Darren Dancey

Markov chain Monte Carlo (MCMC) methods are fundamental to Bayesian computation, but can be computationally intensive, especially in high-dimensional settings. Push-forward generative models, such as generative adversarial networks (GANs),…

Machine Learning · Computer Science 2026-02-25 Jonathan Spence , Tobías I. Liaudat , Konstantinos Zygalakis , Marcelo Pereyra

In this work, we provide an efficient and realistic data-driven approach to simulate astronomical images using deep generative models from machine learning. Our solution is based on a variant of the generative adversarial network (GAN) with…

Machine Learning · Computer Science 2019-09-27 Mohamad Dia , Elodie Savary , Martin Melchior , Frederic Courbin

Novel multimodal imaging methods are capable of generating extensive, super high resolution datasets for preclinical research. Yet, a massive lack of annotations prevents the broad use of deep learning to analyze such data. So far, existing…

Image and Video Processing · Electrical Eng. & Systems 2021-04-26 Izabela Horvath , Johannes C. Paetzold , Oliver Schoppe , Rami Al-Maskari , Ivan Ezhov , Suprosanna Shit , Hongwei Li , Ali Ertuerk , Bjoern H. Menze

Generative Adversarial Networks (GANs) are performant generative methods yielding high-quality samples. However, under certain circumstances, the training of GANs can lead to mode collapse or mode dropping, i.e. the generative models not…

Machine Learning · Computer Science 2021-04-28 Hannes De Meulemeester , Joachim Schreurs , Michaël Fanuel , Bart De Moor , Johan A. K. Suykens

Image matting and image harmonization are two important tasks in image composition. Image matting, aiming to achieve foreground boundary details, and image harmonization, aiming to make the background compatible with the foreground, are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Xuqian Ren , Yifan Liu , Chunlei Song

In recent years, Generative Adversarial Networks (GAN) have emerged as a powerful method for learning the mapping from noisy latent spaces to realistic data samples in high-dimensional space. So far, the development and application of GANs…

Machine Learning · Statistics 2018-01-30 Atanas Mirchev , Seyed-Ahmad Ahmadi

Generative adversarial network (GAN) has achieved impressive success on cross-domain generation, but it faces difficulty in cross-modal generation due to the lack of a common distribution between heterogeneous data. Most existing methods of…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Wen-Cheng Chen , Chien-Wen Chen , Min-Chun Hu

We present a new method which leverages conditional Generative Adversarial Networks (cGAN) to reconstruct galaxy cluster convergence from lensed CMB temperature maps. Our model is constructed to emphasize structure and high-frequency…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-17 Liam Parker , Dongwon Han , Pablo Lemos Portela , Shirley Ho
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