Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Osses, Axel"'
Deformable image registration is a standard engineering problem used to determine the distortion experienced by a body by comparing two images of it in different states. This study introduces two new DIR methods designed to capture non-affine deforma
Externí odkaz:
http://arxiv.org/abs/2409.00037
Autor:
Osses, Axel, Triki, Faouzi
We establish a new spectral inequality for the quantified estimation of the $H^s$-norm, $s\ge 0$ of a finite linear combination of eigenfunctions in a domain in terms of its $H^s$-norm in a strictly open subset of the whole domain. The corresponding
Externí odkaz:
http://arxiv.org/abs/2312.16495
We investigate the radiating resonances for the Helmholtz equation in the two dimensional space in the presence of an unbounded waveguide with a high contrast index of refraction. Using a suitable asymptotic analysis of the Green's function of the pr
Externí odkaz:
http://arxiv.org/abs/2311.00132
Autor:
Catalán, Tabita, Courdurier, Matías, Osses, Axel, Botnar, René, Costabal, Francisco Sahli, Prieto, Claudia
Cardiac cine MRI is the gold standard for cardiac functional assessment, but the inherently slow acquisition process creates the necessity of reconstruction approaches for accelerated undersampled acquisitions. Several regularization approaches that
Externí odkaz:
http://arxiv.org/abs/2307.14363
Autor:
Barnafi, Nicolás A., Osses, Axel
In this work we propose a mathematical model that describes the orientation of ventricular cardiac fibers. These fibers are commonly computed as the normalized gradient of certain harmonic potentials, so our work consisted in finding the equations th
Externí odkaz:
http://arxiv.org/abs/2305.01199
This second version of the manuscript includes, in the appendices, an erratum that points out an error on the published version and offers alternative results for the Lipschitz stability analysis of the backward heat propagation problem and its appli
Externí odkaz:
http://arxiv.org/abs/2012.02002
Autor:
Cueva, Evelyn, Courdurier, Matias, Osses, Axel, Castañeda, Victor, Palacios, Benjamin, Härtel, Steffen
We study an inverse problem for Light Sheet Fluorescence Microscopy (LSFM), where the density of fluorescent molecules needs to be reconstructed. Our first step is to present a mathematical model to describe the measurements obtained by an optic came
Externí odkaz:
http://arxiv.org/abs/1909.04174
The mass of the gaseous reservoir in young circumstellar disks is a crucial initial condition for the formation of planetary systems, but estimates vary by orders of magnitude. In some disks with resolvable cavities, sharp inner disk warps cast two-s
Externí odkaz:
http://arxiv.org/abs/1904.07064
Autor:
Casassus, Simon, Avenhaus, Henning, Perez, Sebastian, Navarro, Victor, Carcamo, Miguel, Marino, Sebastian, Cieza, Lucas, Quanz, Sascha P., Alarcon, Felipe, Zurlo, Alice, Osses, Axel, Rannou, Fernando R., Romaan, Pablo E., Barraza, Marcelo
Optical/IR images of transition disks (TDs) have revealed deep intensity decrements in the rings of HAeBes HD142527 and HD100453, that can be interpreted as shadowing from sharply tilted inner disks, such that the outer disks are directly exposed to
Externí odkaz:
http://arxiv.org/abs/1804.02360