نتایج جستجو برای: wavelets

تعداد نتایج: 7094  

Journal: :CoRR 2002
W. Chen

This report aims to present my research updates on distance function wavelets (DFW) based on the fundamental solutions and general solutions of the Helmholtz, modified Helmholtz, and convection-diffusion equations, which include the isotropic HelmholtzFourier (HF) transform and series, the Helmholtz-Laplace (HL) transform, and the anisotropic convection-diffusion wavelets and ridgelets. The lat...

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2014
Moo K. Chung Stacey M. Schaefer Carien M. van Reekum Lara Peschke-Schmitz Mattew J. Sutterer Richard J. Davidson

We present a new unified kernel regression framework on manifolds. Starting with a symmetric positive definite kernel, we formulate a new bivariate kernel regression framework that is related to heat diffusion, kernel smoothing and recently popular diffusion wavelets. Various properties and performance of the proposed kernel regression framework are demonstrated. The method is subsequently appl...

Journal: :Journal of Applied Mathematics 2004

Journal: :IEEE Signal Processing Letters 2004

Journal: :Journal of Japan Society for Fuzzy Theory and Systems 1994

Journal: :Advances in Computational Mathematics 2023

In this paper we present a construction of interpolatory Hermite multiwavelets for functions that take values in nonlinear geometries such as Riemannian manifolds or Lie groups. We rely on the strong connection between wavelets and subdivision schemes to define prediction-correction approach based operate manifold-valued data. The main result concerns decay wavelet coefficients: show our essent...

We consider an approximation scheme using Haar wavelets for solving a class of infinite horizon optimal control problems (OCP's) of nonlinear interconnected large-scale dynamic systems. A computational method based on Haar wavelets in the time-domain is proposed for solving the optimal control problem. Haar wavelets integral operational matrix and direct collocation method are utilized to find ...

Journal: :Khulna University studies 2022

In this article we discuss the concept of wavelets, different forms wavelets and their properties, graphs Fourier transforms are shown. We have also discussed comparative advantages wavelet over transforms- in analyzing signals.

Journal: :bulletin of the iranian mathematical society 0
m. ahmadinia department of mathematics, university of qom, p.o. box 37185-3766, qom, iran. h. naderi yeganeh department of mathematics, university of qom, p.o. box 37185-3766, qom, iran.

this paper presents a proof of stirling's formula using haar wavelets and some properties of hilbert space, such as parseval's identity. the present paper shows a connection between haar wavelets and certain sequences.

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