Modes of homogeneous gradient flows

I Cohen, O Azencot, P Lifshits, G Gilboa - SIAM Journal on Imaging Sciences, 2021 - SIAM
Finding latent structures in data is drawing increasing attention in diverse fields such as
image and signal processing, fluid dynamics, and machine learning. In this work we …

Total variation and mean curvature PDEs on the homogeneous space of positions and orientations

BMN Smets, J Portegies, E St-Onge, R Duits - Journal of Mathematical …, 2021 - Springer
Two key ideas have greatly improved techniques for image enhancement and denoising:
the lifting of image data to multi-orientation distributions and the application of nonlinear …

Introducing the p-Laplacian spectra

I Cohen, G Gilboa - Signal Processing, 2020 - Elsevier
In this work we develop a nonlinear decomposition, associated with nonlinear
eigenfunctions of the p-Laplacian for p∈(1, 2). With this decomposition we can process …

PDE evolutions for M-smoothers in one, two, and three dimensions

M Welk, J Weickert - Journal of Mathematical Imaging and Vision, 2021 - Springer
Local M-smoothers are interesting and important signal and image processing techniques
with many connections to other methods. In our paper, we derive a family of partial …

[图书][B] Latent Modes of Nonlinear Flows: A Koopman Theory Analysis

I Cohen, G Gilboa - 2023 - cambridge.org
Extracting the latent underlying structures of complex nonlinear local and nonlocal flows is
essential for their analysis and modeling. In this Element the authors attempt to provide a …

Numerical solutions of the Allen–Cahn equation with the p-Laplacian

D Lee, C Lee - Applied Mathematics and Computation, 2022 - Elsevier
We investigate the behavior of the numerical solutions of the p-Laplacian Allen–Cahn
equation. Because of the p-Laplacian's challenging numerical properties, many different …

[PDF][PDF] Mode decomposition for homogeneous symmetric operators

I Cohen, O Azencot, P Lifshits, G Gilboa - Preprint arXiv, 2020 - researchgate.net
Finding latent structures in data is drawing increasing attention in diverse fields such as fluid
dynamics, signal processing, and machine learning. Dimensionality reduction facilitates the …

[引用][C] Weighted -Laplacian parabolic equation and -spectrum

Z Shuang, J Xiao - Annals of Mathematical Sciences …, 2024 - International Press of Boston