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conference paper

Sampling theorems and compressive sensing on the sphere

McEwen, Jason  
•
Puy, Gilles  
•
Thiran, Jean-Philippe  
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2011
Proceedings of SPIE, Wavelets and Sparsity XIV
Conference on Wavelets and Sparsity XIV

We discuss a novel sampling theorem on the sphere developed by McEwen & Wiaux recently through an association between the sphere and the torus. To represent a band-limited signal exactly, this new sampling theorem requires less than half the number of samples of other equiangular sampling theorems on the sphere, such as the canonical Driscoll & Healy sampling theorem. A reduction in the number of samples required to represent a band-limited signal on the sphere has important implications for compressive sensing, both in terms of the dimensionality and sparsity of signals. We illustrate the impact of this property with an inpainting problem on the sphere, where we show superior reconstruction performance when adopting the new sampling theorem.

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Type
conference paper
DOI
10.1117/12.893481
Web of Science ID

WOS:000297583100038

Author(s)
McEwen, Jason  
Puy, Gilles  
Thiran, Jean-Philippe  
Vandergheynst, Pierre  
Van De Ville, Dimitri  
Wiaux, Yves  
Date Issued

2011

Publisher

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa

Published in
Proceedings of SPIE, Wavelets and Sparsity XIV
Series title/Series vol.

Proceedings of SPIE

Volume

8138 81381F-1

Subjects

LTS5

•

CIBM-SPC

•

Sphere

•

Spherical harmonics

•

Sampling theorem

•

Compressive sensing

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
MIPLAB  
LTS5  
LTS2  
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Event nameEvent placeEvent date
Conference on Wavelets and Sparsity XIV

San Diego, CA

August 21-25, 2011

Available on Infoscience
February 13, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/64274
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