Bayesian estimation of regularization and point spread function parameters for Wiener–Hunt deconvolution
This paper tackles the problem of image deconvolution with joint estimation of point spread
function (PSF) parameters and hyperparameters. Within a Bayesian framework, the solution …
function (PSF) parameters and hyperparameters. Within a Bayesian framework, the solution …
Efficient variational Bayesian approximation method based on subspace optimization
Variational Bayesian approximations have been widely used in fully Bayesian inference for
approximating an intractable posterior distribution by a separable one. Nevertheless, the …
approximating an intractable posterior distribution by a separable one. Nevertheless, the …
3D deconvolution of hyper-spectral astronomical data
S Bongard, F Soulez, É Thiébaut… - Monthly Notices of the …, 2011 - academic.oup.com
In this paper we present a general method for multichannel image restoration based on
regularized χ2. We introduce separable regularizations that account for the dynamics of the …
regularized χ2. We introduce separable regularizations that account for the dynamics of the …
Estimating hyperparameters and instrument parameters in regularized inversion Illustration for Herschel/SPIRE map making
We describe regularized methods for image reconstruction and focus on the question of
hyperparameter and instrument parameter estimation, ie unsupervised and myopic …
hyperparameter and instrument parameter estimation, ie unsupervised and myopic …
Modeling the spatial PSF at the VLT focal plane for MUSE WFM data analysis purpose
D Serre, E Villeneuve, H Carfantan… - … Optics Systems II, 2010 - spiedigitallibrary.org
MUSE is the Multi Unit Spectroscopic Explorer, an AO-assisted integral field spectrograph
for visible and near-IR wavelengths which is planned to be commissioned at the UT4 of the …
for visible and near-IR wavelengths which is planned to be commissioned at the UT4 of the …
Super-resolution in map-making based on a physical instrument model and regularized inversion-Application to SPIRE/Herschel
We investigate super-resolution methods for image reconstruction from data provided by a
family of scanning instruments like the Herschel observatory. To do this, we constructed a …
family of scanning instruments like the Herschel observatory. To do this, we constructed a …
Restoration of hyperspectral astronomical data with spectrally varying blur
In this paper we present a method for hyper-spectral image restoration for integral field
spectrographs (IFS) data. We specifically address two topics:(i) the design of a fast …
spectrographs (IFS) data. We specifically address two topics:(i) the design of a fast …
PSF estimation of hyperspectral data acquisition system for ground-based astrophysical observations
E Villeneuve, H Carfantan… - 2011 3rd Workshop on …, 2011 - ieeexplore.ieee.org
The Point Spread Function (PSF) is a characteristic of a data acquisition system. In the
context of ground-based hyperspectral astronomical observations, it varies both with the …
context of ground-based hyperspectral astronomical observations, it varies both with the …
Going Forward with the Nancy Grace Roman Space Telescope Transient Survey: Validation of Precision Forward-modeling Photometry for Undersampled Imaging
Abstract The Nancy Grace Roman Space Telescope (Roman) is an observatory for both
wide-field observations and coronagraphy that is scheduled for launch in the mid-2020s …
wide-field observations and coronagraphy that is scheduled for launch in the mid-2020s …
Restoration of hyperspectral astronomical data from integral field spectrograph
F Soulez, S Bongard, É Thiébaut… - 2011 3rd Workshop on …, 2011 - ieeexplore.ieee.org
In this paper we present a method for hyper-spectral image restoration for integral field
spectrographs (IFS) data. It takes advantage of all the spectral and spatial correlations in the …
spectrographs (IFS) data. It takes advantage of all the spectral and spatial correlations in the …