A fast directional continuous spherical wavelet transform

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dc.creatorMcEwen, J. D.
dc.creatorHobson, M. P.
dc.creatorLasenby, A. N.
dc.creatorMortlock, D. J.
dc.date2004-09-13
dc.date.accessioned2026-07-07T02:14:35Z
dc.date.available2026-07-07T02:14:35Z
dc.descriptionA fast algorithm for Antoine and Vandergheynst's (1998) directional continuous spherical wavelet transform (CSWT) is presented. Computational requirements are reduced by a factor of O(\sqrt{N}), when N is the number of pixels on the sphere. The spherical Mexican hat wavelet Gaussianity analysis of the WMAP 1-year data performed by Vielva et al. (2003) is reproduced and confirmed using the fast CSWT. The proposed extension to directional analysis is inherently afforded by the fast CSWT algorithm.
dc.description4 pages, 2 figures, XXXIXth Recontres de Moriond
dc.identifierhttps://arxiv.org/abs/astro-ph/0409288
dc.identifierhttp://arxiv.org/abs/astro-ph/0409288
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8167
dc.subjectAstrophysics
dc.titleA fast directional continuous spherical wavelet transform
dc.typetext

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