Results 11 to 20 of about 13,612 (265)

Osiris wavelets and Set wavelets [PDF]

Journal 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

Elliptic-Cylindrical Wavelets: The Mathieu Wavelets [PDF]

IEEE Signal Processing Letters, 2004
10 pages, 2 ...
M. M. S. Lira, Hélio Magalhães de Oliveira, Renato J. Cintra   +2 more
openaire   +2 more sources

Wavelet Transparency

CoRR, 2021
Order-independent transparency schemes rely on low-order approximations of transmittance as a function of depth. We introduce a new wavelet representation of this function and an algorithm for building and evaluating it efficiently on a GPU. We then extend the order-independent Phenomenological Transparency algorithm to our representation and introduce
Maksim Aizenshtein, Niklas Smal, Morgan McGuire   +2 more
openaire   +2 more sources

Wavelet deconvolution

IEEE 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

Wavelet Analysis on the Sphere [PDF]

, 2017
The goal of this monograph is to develop the theory of wavelet harmonic analysis on the sphere. By starting with orthogonal polynomials and functional Hilbert spaces on the sphere, the foundations are laid for the study of spherical harmonics such as zonal functions.
Mabrouk, Anouar Ben, Arfaoui, Sabrine, Rezgui, Imen   +2 more
openaire   +4 more sources

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

Mathematics 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

Some results on generalization $\alpha-$Chebyshev wavelets [PDF]

Journal of Mahani Mathematical Research
In this paper, we introduce  generalized formulae for well-known functions such as $\alpha$-Chebyshev functions. We define $\alpha-$Chebyshev wavelets approximation and  generalization $\alpha-$wavelet coapproximation.
Hamid Mazaheri, Aabdul Wali Safi, Seayed Mohammad Jesmani   +2 more
doaj   +1 more source

Fourier–Boas-Like Wavelets and Their Vanishing Moments

Journal of Mathematics, 2021
In this paper, we propose Fourier–Boas-Like wavelets and obtain sufficient conditions for their higher vanishing moments. A sufficient condition is given to obtain moment formula for such wavelets. Some properties of Fourier–Boas-Like wavelets associated
Leena Kathuria, Shashank Goel, Nikhil Khanna   +2 more
doaj   +1 more source

A Note on Some New Generalized Wavelets

Journal of Mathematics, 2022
In this paper, we define new real wavelets based on the Hartley kernel and Boas transforms. These wavelets have possible application in analyzing both the symmetries of an asymmetric real signal.
A. Zothansanga, Nikhil Khanna, S. K. Kaushik, Dilip Kumar   +3 more
doaj   +1 more source

NONUNIFORM SUPER WAVELETS IN 𝐿^2(K)

Проблемы анализа, 2021
In this paper, we introduce the structure of nonuniform super wavelets over local fields. We shall also provide the characterization of nonuniform parseval frame, nonuniform semi-orthogonal pareseval multiwavelets, and nonuniform super wavelets over ...
O. Ahmad, Abdullah A. H. Ahmadini, M. Ahmad   +2 more
doaj   +1 more source