Sciweavers

ICIP
2005
IEEE

Curvelet transform on the sphere

13 years 9 months ago
Curvelet transform on the sphere
We present in this paper new multiscale transforms on the sphere, namely the isotropic undecimated wavelet transform, the pyramidal wavelet transform, the ridgelet transform and the curvelet transform. All of these transforms can be inverted i.e. we can exactly reconstruct the original data from its coefficients in either representation. Several applications are described. We show how these transforms can be used in denoising and especially in a Combined Filtering Method, which uses both the wavelet and the curvelet transforms, thus benefiting from the advantages of both transforms. An application to component separation from multichannel data mapped to the sphere is also described in which we take advantage of moving to a wavelet representation. Key words. cosmic microwave background – methods: data analysis – methods: statistical
Pierrick Abrial, Jean-Luc Starck, Yassir Moudden,
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where ICIP
Authors Pierrick Abrial, Jean-Luc Starck, Yassir Moudden, Mai K. Nguyen
Comments (0)