H.
Carfantan,
Modèles
estimateurs et algorithmes pour quelques problèmes inverses de
traitement du signal et d'images en sciences de l'Univers
Mémoire
d'habilitation à diriger les recherches,
soutenue le 18
novembre 2014 à l'Université Toulouse 3 - Paul Sabatier,
devant
le jury composé de : Jean-Yves Tourneret (Président), Laure
Blanc-Féraud , Jean-François Giovannelli et Olivier Michel
(Rapporteurs), Alain Abergel et Sylvie Roques (Examinateurs), Yannick
Deville (Parrain)
M. C. Amrouche ; H.
Carfantan et J. Idier
Statistical destriping of
Pushbroom-Type Images based on an affine detector response
Accepted
for publication in IEEE Transactions on Geoscience and Remote
Sensing, 2022.
DOI :
10.1109/TGRS.2022.3195092
E. Hemsley, I. Ardi,
T. Rouvier, S. Lacroix, H. Carfantan, et
A. Monmayrant
Fast reconstruction of hyperspectral
images from coded acquisitions using a separability assumption
Optics
Express, 30(5), feb, 2022.
DOI : 10.1364/OE.448893
D. Testa, H. Carfantan
et L. Perrone
The SparSpec algorithm and the application
to the detection of spatial periodicities in tokamaks: error
weighting the penalization criterion to improve the performance of
the algorithm
Plasma Research Express, apr. 2021.
DOI :
10.1088/2516-1067/abf946
D. Testa, H. Carfantan
et L. Perrone
The SparSpec algorithm and the application
to the detection of spatial periodicities in tokamaks: using memory
with relaxation
Plasma Research Express, apr. 2021.
DOI :
10.1088/2516-1067/abf947
E. Hemsley, I. Ardi,
S. Lacroix, H. Carfantan
et A. Monmayrant,
Optimized
coded aperture for frugal hyperspectral image recovery using a
dual-disperser system,
Journal of the Optical Society of America A, 37, 1916-1926,
nov. 2020.
DOI : 10.1364/JOSAA.403594
E. Hemsley,
S. Lacroix, A. Monmayrant et
H. Carfantan.
Calibration
of Programmable Spectral Imager with Dual Disperser Architecture,
Optics Communications,
vol. 468, aug 2020.
DOI : 10.1016/j.optcom.2020.125767
D.
Testa, H. Carfantan,
M. Albergante, P. Blanchard, S. Bourguignon, et
al.
Sparse
representation of signals: from astrophysics to real-time data
analysis for fusion plasmas and system optimization analysis for ITER
and TCV,
Plasma
Physics and Controlled Fusion, 58(12), nov. 2016.
DOI :
10.1088/0741-3335/58/12/123001
S.
Bourguignon, J. Ninin, H.
Carfantan et
M. Mongeau,
Exact
Sparse Approximation Problems via Mixed-Integer Programming:
Formulations and Computationnal Performances,
IEEE
Transactions on Signal Processing, 64(6), mar. 2016.
DOI :
10.1109/TSP.2015.2496367
N.
Bouché, H.
Carfantan, I.
Schroetter, L. Michel-Dansac et T. Contini,
GalPaK3D:
a bayesian parametric tool for extracting morpho-kinematics from 3D
data,
The
Astronomical Journal, 150(3), sep. 2015.
DOI :
10.1088/0004-6256/150/3/92
T. Böhm, M. Holschneider, F. Lignières, P. Petit,
M. Rainer, F. Paletou, G. Wade, E. Alecian,
H. Carfantan, A. Blazère et G.M. Mirouh,
Discovery
of starspots on Vega. First spectroscopic detection of surface
structures on a normal A-type star,
Astronomy and
Astrophysics, (577), may 2015.
DOI :
10.1051/0004-6361/201425425
S.
Bourguignon et H.
Carfantan,
Line
spectra estimation for irregularly sampled signals in
astrophysics,
Regularization
and Bayesian Methods for Inverse Problems in Signal and Image
Processing, J.-F. Giovannelli et J. Idier Ed., ISTE-Wiley,
feb.
2015.
E.
Villeneuve et H.
Carfantan,
Non
linear deconvolution of hyperspectral data with MCMC for studying the
kinematics of galaxies,
IEEE
Transactions on Image Processing, 23(10):4322-4335, oct.
2014.
DOI:
10.1109/TIP.2014.2343461
D.
Testa, H. Carfantan,
A. Goodyear and JET-EFDA contributors,
Implementation
of a Novel Real-Time Controller for the Detection and Tracking of
Magneto-Hydrodynamic Instabilities on the JET Tokamak,
Plasma
and Fusion Research, 9 (1405003), jan. 2014.
DOI:
10.1585/pfr.9.1405003
S.
Bourguignon et H.
Carfantan,
Estimation
de spectres de raies pour des signaux irrégulièrement
échantillonnés en Astrophysique,
Méthodes
d'inversion appliquées au traitement du signal et de l'image,
J.-F. Giovannelli et J. Idier Ed., Traité IC2, Hermès, nov. 2013.
M.
Bazot, T. L. Campante, W. J. Chaplin, H.
Carfantan, T.R.
Bedding, X. Dumusque, A.-M. Broomhall, P. Petit, S. Theado, V. Van
Grootel, T. Arentoft, M. Castro, J. Christensen-Dalsgaard et
al.,
Estimating
the p-mode frequencies of the solar twin 18 Scorpii,
Astronomy
and Astrophysics, (544), aug. 2012.
DOI:
10.1051/0004-6361/201117963
D.
Testa, H. Carfantan, A. Fasoli, A. Goodyear, Q. King, P.
Blanchard, A. Klein, P. Lavanchy, T. Panis and JET-EFDA
contributors,
The JET Alfvén Eigenmode Local Manager for
the real-time detection and tracking of a frequency-degenerate
spectrum of MHD instabilities,
Fusion Engineering and
Design, 86(4-5):381-392, june 2011.
D.
Testa, H. Carfantan,
M. Toussaint, R. Chavan, Y. Fournier, J. Guterl, J.B. Lister, T.
Maeder, J.-M. Moret, A. Perez, F. Sanchez, B. Schaller, C. Slater, M.
Stoeck, and G. Tonetti,
Assessment
of the ITER high-frequency magnetic diagnostic set,
Fusion Engineering and Design, 86(6-8):1149-1152, oct. 2011.
M. Bazot,
M.J. Ireland, D. Huber, T.R. Bedding, A.-M. Broomhall,
T.L. Campante, H. Carfantan,
W.J. Chaplin, Y. Elsworth, J. Meléndez, P. Petit,
S. Théado, V. van Grootel, T. Arentoft, M. Asplund,
M. Castro, J. Christensen-Dalsgaard, J.D. Do
Nascimento, B. Dintrans, X. Dumusque, H. Kjeldsen,
H.A. McAlister, T.S. Metcalfe, M.J.P.F.G. Monteiro,
N.C. Santos, S. Sousa, J. Sturmann, L. Sturmann,
T.A. Ten Brummelaar, N. Turner, and S. Vauclair,
The
radius and mass of the close solar twin 18 Scorpii derived from
asteroseismology and interferometry,
Astronomy
and Astrophysics, 526:L4, feb. 2011.
D. Testa,
H. Carfantan, A. Goodyear, P. Blanchard,
A. Klein, T. Panis, and JET-EFDA contributors,
The
JET Alfvén eigenmode local manager for the real-time detection and
tracking of MHD instabilities.
Europhysics Letters,
92:50001, dec. 2010.
T. Panis,
D. Testa, A. Fasoli, A. Klein, H. Carfantan,
P. Blanchard, and JET-EFDA Contributors. Optimization of the
active MHD spectroscopy system on JET for the excitation of
individual intermediate and high-n Alfvén eigenmodes.
Nuclear
Fusion, 50(8):084019, aug. 2010.
D. Testa,
N. Mellet, T. Panis, P. Blanchard, H. Carfantan,
A. Fasoli, and JET-EFDA contributors, The dependence of the
damping rate of medium-n toroidal Alfvén eigenmodes on the edge
plasma elongation in JET,
Nuclear Fusion, 50(8):084010,
aug. 2010.
D.
Testa, H. Carfantan, R. Chavan, J. B. Lister, J.-M. Moret and
M. Toussain,
Functional Performance Analysis And
Optimization For The High-Frequency Magnetic Diagnostic System In
ITER-II: Detailed Overview Of The Analysis Method And Of The Test
Calculations, Fusion Science And Technology (technical paper),
57:238-273, apr. 2010.
D.
Testa, H. Carfantan, R. Chavan, J. B. Lister, J.-M. Moret and
M. Toussain,
Functional Performance Analysis And
Optimization For The High-Frequency Magnetic Diagnostic System In
Iter-I: Overview Of The Results, Fusion Science And Technology
(technical paper), 57:208-237, apr. 2010.
H. Carfantan
and J. Idier,
Statistical
linear destriping of satellite-based pushbroom-type images,
IEEE Transactions on Geoscience and Remote Sensing,
48(4):1860-1871, apr. 2010.
DOI: 10.1109/TGRS.2009.2033587
D. Testa,
M. Toussaint, R. Chavan, J. Guterl, J.-M. Lister,
J.B. Moret, A. Perez, F. Sanchez, B. Schaller,
G. Tonetti, A. Encheva, G. Vayakis, C. Walker,
Y. Fournier, T. Maeder, A. Le-Luyer, P. Moreau,
G. Chitarin, E. Alessi, R.S. Delogu, A. Gallo,
N. Marconato, S. Peruzzo, M. Preindl, H. Carfantan,
E. Hodgson, J. Romero, R. Vila, B. Brichard, and
L. Vermeeren,
The
magnetic diagnostic set for ITER,
IEEE
Transactions on Plasma Science, 38(3):284-294, mar. 2010.
DOI :
10.1109/TPS.2009.2037226
A. Khazaal,
H. Carfantan
and
E. Anterrieu,
On
the reduction of the systematic error in imaging radiometry by
aperture synthesis : a new approach for the SMOS space
mission,
IEEE
Geoscience and Remote Sensing Letters 6(1), 47:51, Nov. 2008.
DOI:
10.1109/LGRS.2008.2004722
A. Klein,
H. Carfantan,
Duccio S Testa, Ambrogio Fasoli, Joe Snipes and JET-EFDA
contributors,
A
sparcity-based method for the analysis of magnetic fluctuations in
unevenly-spaced Mirnov coils,
Plasma
Physics and Controllled Fusion (50) 125005, October 2008.
DOI:
10.1088/0741-3335/50/12/125005
H. Carfantan
and
A. Mohammad-Djafari.
Bayesian
approach for inverse problems, chapter~13: Diffraction
Tomography,
ISTE
and John Wiley, 2008.
ISBN:
9781848210325
S. Bourguignon,
and H. Carfantan,
New
methods for fitting multiple sinusoids from irregularly sampled
data.
Statistical
Methodology, Elsevier, 318:327, (5), july 2008.
DOI:
10.1016/j.stamet.2007.10.004
S. Bourguignon,
H. Carfantan,
and J. Idier,
A
sparsity-based method for the estimation of spectral lines from
irregularly sampled data,
IEEE
Journal of Selected Topics in Signal Processing, Issue: Convex
Optimization Methods for Signal Processing, 1(4), decembre 2007.
DOI:
10.1109/JSTSP.2007.910275
S. Bourguignon,
H. Carfantan,
and T. Boehm,
SparSpec:
a new method for fitting multiple sinusoids with irregularly sampled
data,
Astronomy
and Astrophysics, 462:379--387, janvier 2007.
DOI:
10.1051/0004-6361:20065452
Y.
Constans, S. Fabre, H.
Carfantan,
M. Seymour, V. Crombez, X. Briottet et
Y.
Deville,
Fusion
of panchromatic and hyperspectral images in the reflective domain by
a combinatorial approach and application to urban landscape,
International Geoscience and Remote Sensing Symposium
(IGARSS’2021), july
2021.
DOI :
10.1109/ICASSP39728.2021.9414293
E. Hemsley, I. Ardi, S. Lacroix, H.
Carfantan, A. Monmayrant,
Fast, Frugal Image
Reconstruction with a Dual Disperser Hyperspectral Imager,
Conference
on Lasers and Electro-Optics Europe and European Quantum Electronics
Conference, june 2021.
DOI :
10.1109/CLEO/Europe-EQEC52157.2021.9542719
M.
C. Amrouche, H.
Carfantan,
J. Idier,
A partially collapsed Gibbs sampler for unsupervised
nonnegative sparse signal restoration,
International Conference
on Acoustic, Speech and Signal Processing (ICASSP’2021), june
2021.
DOI :
10.1109/ICASSP39728.2021.9414293
R. Ben Mhenni,
S. Bourguignon, M. Mongeau, J. Ninin, H. Carfantan,
Sparse
banch and bound exact optimization of L0-norm
penalized least squares,
International
Conference on Acoustic, Speech and Signal Processing (ICASSP'2020),
mai
2020.
https://hal.archives-ouvertes.fr/hal-02564594
M. Boudineau,
H. Carfantan,
M. Bazot,
Détection
d'exoplanètes par la méthode des vitesses radiales via
l'échantillonnage MCMC d'un modèle Bernoulli-Gaussien
étendu,
XXVIIème
colloque Gretsi, Lille, France, août
2019.
https://hal.archives-ouvertes.fr/hal-02337776
M.C. Amrouche,
H. Carfantan,
J. Idier, A. Michel, V. Martin,
Destriping
d’images satellitaires push-broom pour un modèle affine de réponse
des détecteurs,
XXVIIème
colloque Gretsi, Lille, France, août
2019.
https://hal.archives-ouvertes.fr/hal-02337756
R. Ben
Mhenni, S. Bourguignon, M. Mongeau, J. Ninin,
H. Carfantan,
Algorithme
branch-and-bound pour l’optimisation exacte en norme L0,
XXVIIème
colloque Gretsi, Lille, France, août
2019.
https://hal.archives-ouvertes.fr/hal-02280754
I. Ardi,
H.
Carfantan,
S. Lacroix, A. Monmayrant
Fast
hyperspectral cube reconstruction for a double disperser imager,
26th
European Signal Processing Conference (EUSIPCO), Rome, Italy, Sept.
2018.
DOI :
10.23919/EUSIPCO.2018.8553615
M. Boudineau,
H. Carfantan,
S. Bourguignon,
An
L0 solution to sparse approximation problems with continuous
dictionaries,
International
Conference on Acoustic, Speech and Signal Processing (ICASSP'2018),
Calgary, Alberta, Canada, Apr. 2018.
DOI:
10.1109/ICASSP.2018.8462281
M. Boudineau,
H. Carfantan,
Approximation
parcimonieuse avec dictionnaire continu pour l’analyse spectrale de
données irrégulièrement échantillonnées,
XXVIème
colloque Gretsi, Juan-Les-Pins, France, sept.
2017.
https://hal.archives-ouvertes.fr/hal-01635129
I. Ardi,
H. Carfantan,
S. Lacroix et A. Monmayrant
Reconstruction
d’images hyperspectrales à faible coût pour un imageur pilotable
à double dispersion,
XXVIème
colloque Gretsi, Juan-Les-Pins, France, sept.
2017.
https://hal.archives-ouvertes.fr/hal-01562530
M. Boudineau,
H. Carfantan,
S. Bourguignon and M. Bazot,
Sampling
schemes and parameter estimation for nonlinear Bernoulli-Gaussian
sparse models,
IEEE Statistical Signal Processing Workshop, Palma de Mallorca,
Spain, june 2016.
DOI: 0.1109/SSP.2016.7551706
S. Bourguignon, J. Ninin, H.
Carfantan, M. Mongeau,
Optimisation exacte de critères
parcimonieux en norme L0 par programmation mixte en nombres
entiers,
XXVème
colloque Gretsi, Lyon, France, sept.
2015.
https://hal.archives-ouvertes.fr/hal-01194776/
A. Selloum, E. Villeneuve, H.
Carfantan et Y. Deville,
Séparation myope de sources
stellaires hyperspectrales par des méthodes bayésiennes : Filtre
particulaire et MCMC,
XXIVème
colloque Gretsi, Brest, France, sept. 2013.
A.
Selloum, Y. Deville et H. Carfantan,
Separation
of stellar spectra from hyperspectral images using partical filtering
constrained by a parametric spatial mixing model.
11th
International Workshop IEEE Electronics, Control, Measurement,
Signals and their application to Mechatronics, Toulouse, France, juin
2013.
DOI:
10.1109/ECMSM.2013.6648952
E.
Villeneuve and H.
Carfantan,
Hyperspectral
data deconvolution for galaxy kinematics with MCMC,
20th
European Signal Processing Conference EUSIPCO,
Bucarest, Roumanie, août 2012.
S. Bourguignon,
H. Carfantan,
D. Mary, E. Slezak, and A. Ferrari,
Restauration
des cubes hyperspectraux du spectro-imageur MUSE,
XXIIIème
colloque Gretsi, Bordeaux, France, sept.
2011.
https://hal.archives-ouvertes.fr/hal-01635150
E. Villeneuve,
H. Carfantan,
A. Jarno, D. Serre, V. Mazet, and S. Bourguignon,
Modélisation
et estimation de la PSF d'un instrument hyperspectral au sol pour
l'astrophysique, XXIIIème
colloque Gretsi, Bordeaux, France, sept.
2011.
https://hal.archives-ouvertes.fr/hal-01635140
I. Meganem,
Y. Deville, S. Hosseini, H. Carfantan,
and M.S. Karoui,
Extraction
of stellar spectra from dense fields in hyperspectral MUSE data cubes
using non-negative matrix factorization.
IEEE WHISPERS, Lisbonne, Portugal, june 2011.
DOI:
10.1109/WHISPERS.2011.6080930
S. Bourguignon,
H. Carfantan,
E. Slezak, and D. Mary,
Sparsity-based
spatial-spectral restoration of muse astrophysical hyperspectral data
cubes,
IEEE
WHISPERS, Lisbonne, Portugal, june 2011.
DOI:
10.1109/WHISPERS.2011.6080853
E. Villeneuve,
H. Carfantan,
and D. Serre,
PSF
estimation of hyperspectral data acquisition system for ground-based
astrophysical observations,
IEEE WHISPERS,
Lisbonne,
Portugal, june 2011.
DOI: 10.1109/WHISPERS.2011.6080902
S. Bourguignon,
C. Soussen, H. Carfantan,
and J. Idier,
Sparse
deconvolution: Comparison of statistical and deterministic
approaches,
IEEE Statistical Signal Processing Workshop, Nice, France, june
2011.
DOI: 10.1109/SSP.2011.5967691
D.
Testa, H.
Carfantan, M.
Toussaint, R. Chavan and Y. Fournier et al.
Analysis
of the ITER High-Frequency Magnetic Diagnostic Set,
26th Symposium on Fusion Technology, Porto, Portugal,
oct. 2010.
D. Serre,
E. Villeneuve, H. Carfantan,
L. Jolissaint, V. Mazet, S. Bourguignon, and A. Jarno,
Modeling the spatial PSF
at the VLT focal plane for MUSE WFM data analysis purpose,
In
SPIE Conference Series, volume 7736, jul. 2010.
D. Testa,
R. Chavan, J. Guterl, J.B. Lister, J.-M. Moret,
A. Perez, F. Sanchez, B. Schaller, G. Tonetti,
M. Toussaint, G. Chitarin, R.S. Delogu, A. Gallo,
N. Marconato, S. Peruzzo, A. Encheva, G. Vayakis,
C. Walker, H. Carfantan,
Y. Fournier, T. Maeder, E. Hodgson, J. Romero,
R. Vila, A. Le-Luyer, P. Moreau, B. Brichard, and
L. Vermeeren.
The
magnetic diagnostic set for ITER,
23rd
Symposium on Fusion Engineering,
IEEE/NPSS, San Diego, CA, nov. 2009.
D. Testa,
D. Chavan, J. Guterl, J.B. Lister, J.-M. Moret,
A. Perez, F. Sanchez, B. Schaller, G. Tonetti,
M. Toussaint, Y. Fournier, T. Maeder, A. Encheva,
G. Vayakis, C. Walker, and H. Carfantan,
Baseline system design and
prototyping for the ITER high-frequency magnetic diagnostics
set,
23rd
Symposium on Fusion Engineering,
IEEE/NPSS, San Diego, CA, nov. 2009.
D.
Testa,
T. Panis, P. Blanchard, H.
Carfantan, A.
Fasoli, and JET-EFDA contributors, Measurement
of the Damping Rate of High-n Toroidal Alfvén Eigenmodes in JET,
11th IAEA
Technical Committee Meeting on Energetic Particles, Kyiv (Ukraine),
21-23 sept. 2009.
E. Anterrieu,
A. Khazaal, and H. Carfantan,
Impact
of correlators and receivers failures on the miras instrument onboard
SMOS.
Proc.
IEEE International Geoscience And Remote Sensing Symposium
(IGARSS'08), Boston, Massachusetts, USA, juillet 2008.
DOI:
10.1109/IGARSS.2008.4779126
L. Jolissaint, H. Carfantan and E. Anterrieu,
Exploring the impact of PSF reconstruction errors on
the reduction of astronomical adaptive optics based data,
Proc.
Astronomical Telescopes and Instrumentation 2008, Marseille (France),
SPIE Proc. Vol. 7015 (Adaptative Optics Systems),
23-28 June 2008.
DOI 10.1117/12.789618
A. Khazaal, H. Carfantan,
and E. Anterrieu,
On the reduction of the systematic
error in imaging radiometry by aperture synthesis : a new approach
for the SMOS space mission,
In Proc. 10th Specialist Meeting
on Microwave Radiometry & Remote Sensing
Applications (microRAD'08),
Florence, Italie, mars 2008.
A. Klein, D. Testa,
J. Snipes, A. Fasoli, and H. Carfantan.
Damping
rate measurements of medium n alfvén eigenmodes in jet.
In
American Physical Society, 49th Annual Meeting of the Division of
Plasma Physics of the American Physical Society, Orlando, Florida,
nov. 2007.
A. Klein, D. Testa,
J. Snipes, A. Fasoli, and H. Carfantan.
A
new method for the analysis of alfvén eigenmodes using data from
unevenly-spaced mirnov coils.
In 10th IAEA Technical Meeting
on Energetic Particles in Magenetic Confinement Systems, Garching,
Germany, oct. 2007.
S. Bourguignon,
H. Carfantan,
J. Idier,
Minimisation
de critères de moindres carrés pénalisés par la norme L1 dans le
cas complexe,
XXIème
colloque Gretsi, Troyes, France, sept. 2007.
S. Bourguignon and
H. Carfantan,
New methods for fitting mutiple
sinusoids from irregularly sampled data,
In Astronomical
Data Analysis, Marseille, France, septembre 2006.
C. Leroy,
A. Arondel, J.-P. Bernard, H.
Carfantan,
C. Dumesnil, J.-J. Fourmond, G. Guyot, J.-M. Lamarre,
F. Pajot, M. Piat, J.-L. Puget, J.-F. Trouilhet,
S. Varesi, and the Planck-HFI Instrument Team,
Performances
of the planck-HFI cryogenic thermal control system.
Proc.
SPIE Astronomical Telescopes and Instrumentation conference, Orlando,
Florida USA, mai 2006.
DOI : 10.1117/12.670845
S. Bourguignon
and H. Carfantan,
Spectral
analysis of irregularly sampled data using a Bernoulli-Gaussian model
with free frequencies,
Proc.
International Conference on Acoustic, Speech and Signal
Processing (ICASSP'06), pages 516-519, Toulouse, France, mai
2006.
DOI: 10.1109/ICASSP.2006.1660704
S. Bourguignon
and H. Carfantan,
Bernoulli-Gaussian
spectral analysis of unevenly spaced astrophysical data,
Proc.
IEEE Workshop in Statistical Signal Processing (SSP'05), pages
811--816, Bordeaux, France, juillet 2005.
DOI:
10.1109/SSP.2005.1628705
Y. Deville,
D. Bissessur, M. Puigt, S. Hosseini, and
H. Carfantan,
A
time-scale correlation-based blind separation method applicable to
correlated sources,
Proc.
14 th European Symposium on Artificial Neural Networks (ESANN'06),
Bruges, Belgium, avril
2006.
https://hal.archives-ouvertes.fr/hal-00408599v1
S. Bourguignon,
H. Carfantan,
and L. Jahan,
Regularized
spectral analysis of unevenly spaced data,
Proc
International Conference on Acoustic, Speech and Signal
Processing (ICASSP'05), pages 421-424, Philadelphia, USA, mars
2005.
DOI: 10.1109/ICASSP.2005.1416035
H. Carfantan and
J. Idier.
Statistical self-calibration of pushbrum-type
satellite images.
Proc. Fourth International Conference on
Physics in Signal and Image Processing (PSIP'05), pages 183-188,
Toulouse, France, janvier 2005.
S. Bourguignon,
H. Carfantan, and L. Jahan,
Regularized
estimation of line spectra from irregularly sampled astrophysical
data.
Proc. Fourth International Conference on Physics in
Signal and Image Processing (PSIP'05), pages 35-40, Toulouse,
France, janvier 2005.