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Magnetic resonance imaging plays an important role in computer-aided diagnosis and brain exploration. However, limited by hardware, scanning time and cost, it's challenging to acquire high-resolution (HR) magnetic resonance (MR) image…

图像与视频处理 · 电气工程与系统科学 2020-11-10 Senrong You , Yong Liu , Baiying Lei , Shuqiang Wang

As a powerful technique in medical imaging, image synthesis is widely used in applications such as denoising, super resolution and modality transformation etc. Recently, the revival of deep neural networks made immense progress in the field…

图像与视频处理 · 电气工程与系统科学 2021-04-23 Gengyan Zhao , Mary E. Meyerand , Rasmus M. Birn

Covariance matrices have proven highly effective across many scientific fields. Since these matrices lie within the Symmetric Positive Definite (SPD) manifold - a Riemannian space with intrinsic non-Euclidean geometry, the primary challenge…

机器学习 · 计算机科学 2025-04-02 Rui Wang , Shaocheng Jin , Ziheng Chen , Xiaoqing Luo , Xiao-Jun Wu

In this paper, we introduce a new CT image denoising method based on the generative adversarial network (GAN) with Wasserstein distance and perceptual similarity. The Wasserstein distance is a key concept of the optimal transform theory,…

计算机视觉与模式识别 · 计算机科学 2018-07-17 Qingsong Yang , Pingkun Yan , Yanbo Zhang , Hengyong Yu , Yongyi Shi , Xuanqin Mou , Mannudeep K. Kalra , Ge Wang

Learning based single image super resolution (SISR) task is well investigated in 2D images. However, SISR for 3D Magnetics Resonance Images (MRI) is more challenging compared to 2D, mainly due to the increased number of neural network…

图像与视频处理 · 电气工程与系统科学 2023-03-27 Qi Wang , Lucas Mahler , Julius Steiglechner , Florian Birk , Klaus Scheffler , Gabriele Lohmann

Collaborative filtering (CF) is an essential technique in recommender systems that provides personalized recommendations by only leveraging user-item interactions. However, most CF methods represent users and items as fixed points in the…

信息检索 · 计算机科学 2024-07-02 Haoxuan Li , Yuanxin Ouyang , Zhuang Liu , Wenge Rong , Zhang Xiong

In the recent years Generative Adversarial Networks (GANs) have demonstrated significant progress in generating authentic looking data. In this work we introduce our simple method to exploit the advancements in well established image-based…

机器学习 · 计算机科学 2019-10-31 Eoin Brophy , Zhengwei Wang , Tomas E. Ward

This paper presents a novel method for accelerating path planning tasks in unknown scenes with obstacles by utilizing Wasserstein Generative Adversarial Networks (WGANs) with Gradient Penalty (GP) to approximate the distribution of the free…

机器人学 · 计算机科学 2023-06-19 Jorge Ocampo Jimenez , Wael Suleiman

Magnetic resonance image (MRI) reconstruction is a severely ill-posed linear inverse task demanding time and resource intensive computations that can substantially trade off {\it accuracy} for {\it speed} in real-time imaging. In addition,…

计算机视觉与模式识别 · 计算机科学 2017-06-02 Morteza Mardani , Enhao Gong , Joseph Y. Cheng , Shreyas Vasanawala , Greg Zaharchuk , Marcus Alley , Neil Thakur , Song Han , William Dally , John M. Pauly , Lei Xing

Class imbalance occurs in many real-world applications, including image classification, where the number of images in each class differs significantly. With imbalanced data, the generative adversarial networks (GANs) leans to majority class…

计算机视觉与模式识别 · 计算机科学 2022-01-14 Yuchong Yao , Xiaohui Wangr , Yuanbang Ma , Han Fang , Jiaying Wei , Liyuan Chen , Ali Anaissi , Ali Braytee

Nonlinear sparse data regression and generation have been a long-term challenge, to cite the flow field reconstruction as a typical example. The huge computational cost of computational fluid dynamics (CFD) makes it much expensive for large…

信号处理 · 电气工程与系统科学 2020-09-07 Liwei Hu , Wenyong Wang , Yu Xiang , Jun Zhang

Generative adversarial networks (GANs) and normalizing flows are both approaches to density estimation that use deep neural networks to transform samples from an uninformative prior distribution to an approximation of the data distribution.…

机器学习 · 计算机科学 2021-12-15 Tianci Liu , Jeffrey Regier

In this study, a novel topology optimization approach based on conditional Wasserstein generative adversarial networks (CWGAN) is developed to replicate the conventional topology optimization algorithms in an extremely computationally…

机器学习 · 计算机科学 2019-01-16 Sharad Rawat , M. -H. Herman Shen

To improve the stability of GAN training we need to understand why they can produce realistic samples. Presently, this is attributed to properties of the divergence obtained under an optimal discriminator. This argument has a fundamental…

机器学习 · 计算机科学 2020-11-03 Florian Schäfer , Hongkai Zheng , Anima Anandkumar

This paper introduces a novel approach to image denoising that leverages the advantages of Generative Adversarial Networks (GANs). Specifically, we propose a model that combines elements of the Pix2Pix model and the Wasserstein GAN (WGAN)…

图像与视频处理 · 电气工程与系统科学 2024-08-01 Luca Tirel , Ali Mohamed Ali , Hashim A. Hashim

Generative Adversarial Networks (GANs) are modern methods to learn the underlying distribution of a data set. GANs have been widely used in sample synthesis, de-noising, domain transfer, etc. GANs, however, are designed in a model-free…

机器学习 · 计算机科学 2021-03-01 Mucong Ding , Constantinos Daskalakis , Soheil Feizi

Most sign language handshape datasets are severely limited and unbalanced, posing significant challenges to effective model training. In this paper, we explore the effectiveness of augmenting the training data of a handshape classifier by…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Gaston Gustavo Rios , Pedro Dal Bianco , Franco Ronchetti , Facundo Quiroga , Oscar Stanchi , Santiago Ponte Ahón , Waldo Hasperué

This paper presents a novel, automated, generative adversarial networks (GAN) based synthetic feeder generation mechanism, abbreviated as FeederGAN. FeederGAN digests real feeder models represented by directed graphs via a deep learning…

系统与控制 · 电气工程与系统科学 2020-10-13 Ming Liang , Yao Meng , Jiyu Wang , David Lubkeman , Ning Lu

Foreseeing the brain evolution as a complex highly inter-connected system, widely modeled as a graph, is crucial for mapping dynamic interactions between different anatomical regions of interest (ROIs) in health and disease. Interestingly,…

图像与视频处理 · 电气工程与系统科学 2020-09-24 Zeynep Gurler , Ahmed Nebli , Islem Rekik

Social network analysis faces profound difficulties in sharing data between researchers due to privacy and security concerns. A potential remedy to this issue are synthetic networks, that closely resemble their real counterparts, but can be…

社会与信息网络 · 计算机科学 2022-12-16 Alex Davies , Nirav Ajmeri