Results 11 to 20 of about 106,350 (257)

Osiris wavelets and Set wavelets [PDF]

open access: yesJournal of Applied Mathematics, 2004
An alternative to Osiris wavelet systems is introduced in two dimensions. The basic building blocks are continuous piecewise linear functions supported on equilateral triangles instead of on squares.
Guy Battle
doaj   +4 more sources

On the computation of directional scale-discretized wavelet transforms on the sphere [PDF]

open access: yes, 2013
We review scale-discretized wavelets on the sphere, which are directional and allow one to probe oriented structure in data defined on the sphere. Furthermore, scale-discretized wavelets allow in practice the exact synthesis of a signal from its wavelet ...
McEwen, J. D.   +2 more
core   +4 more sources

Wavelet deconvolution

open access: yesIEEE Transactions on Information Theory, 2002
Summary: This paper studies the issue of optimal deconvolution density estimation using wavelets. The approach taken here can be considered as orthogonal series estimation in the more general context of the density estimation. We explore the asymptotic properties of estimators based on thresholding of estimated wavelet coefficients.
Jianqing Fan, Ja-Yong Koo
openaire   +3 more sources

The performance of spherical wavelets to detect non-Gaussianity in the CMB sky [PDF]

open access: yes, 2001
We investigate the performance of spherical wavelets in discriminating between standard inflationary models (Gaussian) and non-Gaussian models. For the later we consider small perturbations of the Gaussian model in which an artificially specified ...
Aghanim   +42 more
core   +2 more sources

Wavelet Electrodynamics [PDF]

open access: yesApplied and Computational Harmonic Analysis, 1992
A new representation for solutions of Maxwell's equations is derived. Instead of being expanded in plane waves, the solutions are given as linear superpositions of spherical wavelets dynamically adapted to the Maxwell field and well-localized in space at the initial time.
openaire   +3 more sources

Elliptic-Cylindrical Wavelets: The Mathieu Wavelets [PDF]

open access: yesIEEE Signal Processing Letters, 2004
10 pages, 2 ...
Lira, M. M. S.   +2 more
openaire   +2 more sources

Applications of Wavelets to the Analysis of Cosmic Microwave Background Maps [PDF]

open access: yes, 1999
We consider wavelets as a tool to perform a variety of tasks in the context of analyzing cosmic microwave background (CMB) maps. Using Spherical Haar Wavelets we define a position and angular-scale-dependent measure of power that can be used to assess ...
A. H. Jaffe   +4 more
core   +4 more sources

Wavelet Foveation

open access: yesApplied and Computational Harmonic Analysis, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chang, Ee-Chien   +2 more
openaire   +1 more source

Watermarking for multimedia security using complex wavelets [PDF]

open access: yes, 2010
This paper investigates the application of complex wavelet transforms to the field of digital data hiding. Complex wavelets offer improved directional selectivity and shift invariance over their discretely sampled counterparts allowing for better ...
Bouridane, Ahmed   +3 more
core   +2 more sources

Legendre wavelets technique for special Initial-Value problem for the quarter plain of heat transfer [PDF]

open access: yesMathematics and Computational Sciences, 2020
In this paper we have solved the heat transfer equation by means of the Volterra integral equation and Legendre Wavelets. Since, due to numerical facts, solution of the related partial differential equation is difficult, thus we have applied integral ...
Bahman Babayar-Razlighi, Mehdi Solaimani
doaj   +1 more source

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