Editor-in-chief, Sampling Theory in Signal and Image Processing.

Associate editor, Journal of Fourier Analysis and Applications.

Associate editor, Journal of Mathematical Imaging and Vision.

Associate editor, IEEE Trans. Signal Processing (1997-1998).

Member of the editorial board of Pattern Recognition (1997-2003).

Member of the editorial board  for the book series, Emerging Technologies In Biomedical Engineering,  IEEE  Press (1996).

Member of the editorial board  for the book series, Applied and Numerical Harmonic Analysis,  Birkhauser  Press.

Guest editor, Special issue on Wavelets in biomedical Applications, IEEE TMI (2001-2002).

Guest Editor, Special issue on frames, Advances in. Computational Mathematics (2001-2002).

Guest Editor, Special issue on Computatinal Harmonic Analysis, Jour. Appl. Comp. Hamon. Anal. (2005)