Spread spectrum for interferometric and magnetic resonance imaging

Author

Puy, G. ; Wiaux, Y. ; Gruetter, R. ; Thiran, J. -Ph ; Van de Ville, D. ; Vandergheynst, P.

Author_Institution

Inst. of Electr. Eng., Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland

fYear

2010

fDate

14-19 March 2010

Firstpage

2802

Lastpage

2805

Abstract

We consider images probed through incomplete and noisy Fourier coverages, both in the context of radio interferometry (RI) and of magnetic resonance imaging (MRI). We show that the quality of signal reconstruction can be significantly enhanced by the introduction of a linear chirp modulation, which induces a spread spectrum phenomenon.

Keywords

chirp modulation; image processing; magnetic resonance imaging; signal reconstruction; spread spectrum communication; interferometric imaging; linear chirp modulation; magnetic resonance imaging; noisy Fourier coverages; radio interferometry; signal reconstruction; spread spectrum phenomenon; Compressed sensing; Dictionaries; Extraterrestrial measurements; Image coding; Image reconstruction; Magnetic resonance imaging; Radio interferometry; Signal processing; Signal reconstruction; Spread spectrum communication; compressed sensing; image processing; magnetic resonance imaging; radio interferometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5496198

Filename

5496198