 He joined the Centre National de la Recherche Scientifique (CNRS) in 1982, where he holds now a senior researcher position ("exceptional class research director").Affiliated to ICPI Lyon from 1982 to 1990—where he has been Head of the Signal Processing Laboratory from 1987 to 1990—, he moved in 1991 to the École normale supérieure de Lyon, where he created a “Signals, Systems, and Physics” group within the Physics laboratory.Among various responsibilities at the national level, he has been Director of the CNRS cooperative structure “GdR ISIS” from 2002 to 2005, and President of GRETSI (the French association for signal and image processing) from 2009 to 2019.