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UID:8187@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20150123T000000
DTEND;TZID=Europe/Paris:20150125T000000
DTSTAMP:20241120T210100Z
URL:https://www.i2m.univ-amu.fr/evenements/30-years-of-wavelets-impact-and
 -future-morlet-chair-hans-georg-feichtinger/
SUMMARY:Workshop (CIRM\, Luminy\, Marseille): 30 Years of Wavelets: Impact 
 and Future (Morlet Chair - Hans-Georg Feichtinger)
DESCRIPTION:Workshop: \n\n\n\n\n CIRM - Jean-Morlet Chair \n Hans-Georg Fei
 chtinger\n&amp\; Bruno Torresani\n\nTime-Frequency Analysis and Coorbit Th
 eory​\n\n\n 2015 - Semester 2 \n\n\n\n\n\n\n\n\n\n\n\nSPECIAL EVENT - WO
 RKSHOP\n30 Years of Wavelets: Impact and Future (1523)\nDates: January 23
 /24\, 2015 at CIRM (Marseille\, France)\n\n\n\n\n\n\n\n\n\n\n\n SCHEDULE \
 n\n\n\n\n\n PARTICIPANTS \n\n\n\n\n\n POSTER \n\n\n\n\n\n\n\n\n\n\n\n\n\n\
 n\n\n\n\n USEFUL LINK ON WAVELETS \n\n\n\n\n\n\n  \n\n\n\n\n\n\n\n  \n\n\n
 \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
 \n\n\n\n\nDESCRIPTION\n\n\n\nAs the final event of this Morlet Chair semes
 ter\, a two-day event entitled '30 years of Wavelets:  Impact and Future
 ' was organized in January 2015.\n\nThis event brought together an impre
 ssive group of “wavelet pioneers’’ (including Alex Grossmann) who 
 presented their views on the history\, the impact and the future of the
  field. Most of the presentations were recorded and are available onli
 ne through CIRM's audiovisual platform.\n\nThe main idea of wavelets i
 s to represent a function\, signal or even tempered distributions by build
 ing blocks of "constant shape"\, i.e. by so-called “wavelets”  or “
 atoms”  which are obtained from a "mother wavelet" (a function with int
 egral zero\, therefore looking like a little wave) by translation and dila
 tion. Soon the idea of a multi-resolution analysis came up\, which allows 
 to decompose e.g. images into coarse and fine levels\, which has important
  applications for image compression and transmission. At the same time man
 y operators do have a "sparse matrix representation" with respect to such 
 wavelet frames.\n\nSince the early days of wavelet theory\, many importan
 t French contributions have participated in the vivid development of the 
 field.\n\nThe Mathematical Genealogy Project currently lists 500 PhD these
 s in the last 25 years related to the topic of wavelets.\n\nThis developme
 nt concerned both the mathematical foundations (e.g. orthonormal wavelet b
 ases with compact support were first introduced by Ingrid Daubechies\,  a
  huge variety of wavelet frames or wavelet bases with extra properties als
 o in the multi-dimensional case are available by now) as well as the appli
 cations. For many years thousands of subscribers (and among them obviously
  many from the applied sciences) had been following the so-called Wavelet 
 Digest\, which was active until not too long ago.\n\nThe discussions about
  Wavelets had also some "side-effects"\, which are in the long run maybe m
 ore important than the concrete system. One modern branch of analysis is r
 elated to "compressed sensing"\, which in turn is based on the idea of spa
 rsity. These concepts come into play\, when one has the chance to represen
 t a signal (typically an element of a high-dimensional space\, e.g. a pixe
 l image) with a fairly small number of coefficients in one of those bases 
 (e.g. a wavelet basis\, with compactly supported atoms and several vanishi
 ng moments). Nowadays a great variety of such expansion is available (Gabo
 r expansions\, shearlets\, curvelets\, etc.\, to name just a few) and vari
 ous strategies to explore this situation\, and use if for the treatment of
  high-dimensional data sets\, have been developed.\n\nThe meeting brought 
 together a group of mathematicians who have contributed significantly to t
 he field\, either at the beginning or during the last 30 years\, providing
  a testimonial of the early developments\, reflecting the impact that wave
 let theory had on the various branches of analysis respectively in the dif
 ferent application areas\, and finally looking into the future\, trying to
  describe certain recent developments which are developing on the basis of
  wavelet theory these days.\n\n\n\n \n\nSCIENTIFIC &amp\; ORGANIZING COM
 MITTEE\n\n\n 	Hans Feichtinger (Vienna)\n 	​Bruno Torrésani (Aix-Mars
 eille Université)\n\n\n\nSPEAKERS\n\n\n 	Jean-Pierre Antoine (UC Louvain
 )\n 	Alain Arneodo (ENS Lyon)\n 	Albert Cohen (UMPC Paris)\n 	Jean-Miche
 l Combes (Université de Toulon)\n 	Marie Farge (CNRS\, ENS Paris)\n 	Ha
 ns G. Feichtinger (University of Vienna)\n 	Patrick Flandrin (ENS Lyon)\
 n 	Jean-Pierre Gazeau (Université Paris Diderot)\n 	Philipp Grohs (ETH 
 Zurich)\n 	Alex Grossmann (previously at Génopôle Evry)\n 	Matthias Hol
 schneider (University of Potsdam)\n 	Stephane Jaffard (UPEC Paris)\n 	Ge
 rard Kerkyacharian (UPMC Paris)\n 	Richard Kronland-Martinet (LMA Marsei
 lle)\n 	Franz Luef (NTNU Trondheim)\n 	Stéphane Mallat (ENS Paris)\n 	R
 omain Murenzi (TWAS Trieste)\n 	Thierry Paul (CNRS\, Ecole polytechnique
 )\n 	Dominique Picard (Université Paris Diderot)\n 	Holger Rauhut (RWTH
  Aachen\n 	Jean-Claude Risset (LMA Marseille)\n 	Ginette Saracco (CEREGE
 )\n 	Jean-Luc Starck (CEA Saclay)\n 	Philippe Tchamitchian (Aix-Marseill
 e Université)\n 	Bruno Torrésani (Aix-Marseille Université)\n 	Michael
  Unser (EPFL Lausanne)\n 	Pierre Vandergheynst (EPFL Lausanne)\n 	Martin
  Vetterli (EPFL Lausanne)\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nSPONSORS\nTh
 is event took place thanks to special funding from:\n\n\n\n\n\n\n\n\n\n\n\
 n  \n\n\n\n\n\n\n\n  \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\
 n\n\n\n\n\n\n\n\n\n\n\n
CATEGORIES:Manifestation scientifique,Morlet Chair Semester,Morlet
 Workshop
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