109 citations · 269 across the 4 of their papers we have counts for
4 papers · 1 filter
Exact reconstruction with directional wavelets on the sphere
Y. Wiaux, J. D. McEwen, P. Vandergheynst +1
A new formalism is derived for the analysis and exact reconstruction of band-limited signals on the sphere with directional wavelets. It represents an evolution of the wavelet form…
Non-Gaussianity analysis on local morphological measures of WMAP data
Y. Wiaux, P. Vielva, R. B. Barreiro +2
The decomposition of a signal on the sphere with the steerable wavelet constructed from the second Gaussian derivative gives access to the orientation, signed-intensity, and elonga…
Alignment and signed-intensity anomalies in WMAP data
P. Vielva, Y. Wiaux, E. Martinez-Gonzalez +1
Significant alignment and signed-intensity anomalies of local features of the cosmic microwave background (CMB) are detected on the three-year WMAP data, through a decomposition of…
Global universe anisotropy probed by the alignment of structures in the cosmic microwave background
Y. Wiaux, P. Vielva, E. Martinez-Gonzalez +1
We question the global universe isotropy by probing the alignment of local structures in the cosmic microwave background (CMB) radiation. The original method proposed relies on a s…