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We introduce a new algorithm named WGAN, an alternative to traditional GAN training. In this new model, we show that we can improve the stability of learning, get rid of problems like mode collapse, and provide meaningful learning curves…

Machine Learning · Statistics 2017-12-08 Martin Arjovsky , Soumith Chintala , Léon Bottou

Generation of simulated data is essential for data analysis in particle physics, but current Monte Carlo methods are very computationally expensive. Deep-learning-based generative models have successfully generated simulated data at lower…

Data Analysis, Statistics and Probability · Physics 2021-02-24 Yadong Lu , Julian Collado , Daniel Whiteson , Pierre Baldi

Image extension models have broad applications in image editing, computational photography and computer graphics. While image inpainting has been extensively studied in the literature, it is challenging to directly apply the…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Piotr Teterwak , Aaron Sarna , Dilip Krishnan , Aaron Maschinot , David Belanger , Ce Liu , William T. Freeman

This thesis analyzes the challenging problem of Image Deblurring based on classical theorems and state-of-art methods proposed in recent years. By spectral analysis we mathematically show the effective of spectral regularization methods,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-25 Yuhong Lu , Nicholas Polydorides

Most existing text-to-image generation methods adopt a multi-stage modular architecture which has three significant problems: 1) Training multiple networks increases the run time and affects the convergence and stability of the generative…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhenxing Zhang , Lambert Schomaker

This paper addresses a new active learning strategy for regression problems. The presented Wasserstein active regression model is based on the principles of distribution-matching to measure the representativeness of the labeled dataset. The…

Machine Learning · Computer Science 2024-03-25 Benjamin Bobbia , Matthias Picard

Regression analysis-based approaches have been widely studied for face recognition (FR) in the past several years. More recently, to better deal with some difficult conditions such as occlusions and illumination, nuclear norm based matrix…

Numerical Analysis · Mathematics 2020-01-30 Jifei Miao , Kit Ian Kou

Illumination estimation remains a pivotal challenge in image processing, particularly for robotics, where robust environmental perception is essential under varying lighting conditions. Traditional approaches, such as RGB histograms and…

Image and Video Processing · Electrical Eng. & Systems 2025-07-04 Selcuk Yazar

We introduce a distortion measure for images, Wasserstein distortion, that simultaneously generalizes pixel-level fidelity on the one hand and realism or perceptual quality on the other. We show how Wasserstein distortion reduces to a pure…

Information Theory · Computer Science 2024-04-01 Yang Qiu , Aaron B. Wagner , Johannes Ballé , Lucas Theis

Single image reflection separation is an ill-posed problem since two scenes, a transmitted scene and a reflected scene, need to be inferred from a single observation. To make the problem tractable, in this work we assume that categories of…

Computer Vision and Pattern Recognition · Computer Science 2018-01-15 Donghoon Lee , Ming-Hsuan Yang , Songhwai Oh

Deep neural networks (DNNs) are known to be vulnerable to adversarial attacks that would trigger misclassification of DNNs but may be imperceptible to human perception. Adversarial defense has been an important way to improve the robustness…

Machine Learning · Computer Science 2023-02-22 Qicheng Wang , Shuhai Zhang , Jiezhang Cao , Jincheng Li , Mingkui Tan , Yang Xiang

Generative adversarial network (GAN) is among the most popular deep learning models for learning complex data distributions. However, training a GAN is known to be a challenging task. This is often attributed to the lack of correlation…

Machine Learning · Computer Science 2020-12-15 Sahil Sidheekh , Aroof Aimen , Vineet Madan , Narayanan C. Krishnan

Bubble segmentation and size detection algorithms have been developed in recent years for their high efficiency and accuracy in measuring bubbly two-phase flows. In this work, we proposed an architecture called bubble generative adversarial…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Yucheng Fu , Yang Liu

In agricultural image analysis, optimal model performance is keenly pursued for better fulfilling visual recognition tasks (e.g., image classification, segmentation, object detection and localization), in the presence of challenges with…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Ebenezer Olaniyi , Dong Chen , Yuzhen Lu , Yanbo Huang

Generative models are increasingly able to produce remarkably high quality images and text. The community has developed numerous evaluation metrics for comparing generative models. However, these metrics do not effectively quantify data…

Machine Learning · Computer Science 2020-10-15 Liam Fowl , Micah Goldblum , Arjun Gupta , Amr Sharaf , Tom Goldstein

Visible watermark plays an important role in image copyright protection and the robustness of a visible watermark to an attack is shown to be essential. To evaluate and improve the effectiveness of watermark, watermark removal attracts…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Xiang Li , Chan Lu , Danni Cheng , Wei-Hong Li , Mei Cao , Bo Liu , Jiechao Ma , Wei-Shi Zheng

Recent theoretical results on adversarial multi-class classification showed a similarity to the multi-marginal formulation of Wasserstein-barycenter in optimal transport. Unfortunately, both problems suffer from the curse of dimension,…

Numerical Analysis · Mathematics 2024-06-13 Maximilian Penka

The task of image generation started to receive some attention from artists and designers to inspire them in new creations. However, exploiting the results of deep generative models such as Generative Adversarial Networks can be long and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Baptiste Rozière , Morgane Riviere , Olivier Teytaud , Jérémy Rapin , Yann LeCun , Camille Couprie

Super-resolution techniques have the potential to reduce the computational cost of cosmological and astrophysical simulations. This can be achieved by enabling traditional simulation methods to run at lower resolution and then efficiently…

Astrophysics of Galaxies · Physics 2025-06-24 John Brennan , Sreedhar Balu , Yuxiang Qin , John Regan , Chris Power

We develop a kernel projected Wasserstein distance for the two-sample test, an essential building block in statistics and machine learning: given two sets of samples, to determine whether they are from the same distribution. This method…

Statistics Theory · Mathematics 2022-05-10 Jie Wang , Rui Gao , Yao Xie