Results 101 to 110 of about 191,604 (213)
LS2W: Implementing the Locally Stationary 2D Wavelet Process Approach in R [PDF]
Locally stationary process representations have recently been proposed and applied to both time series and image analysis applications. This article describes an implementation of the locally stationary two-dimensional wavelet process approach in R. This
Idris A. Eckley, Guy P. Nason
core
NeighShrink is an efficient image denoising algorithm based on the discrete wavelet transform (DWT). Its disadvantage is to use a suboptimal universal threshold and identical neighbouring window size in all wavelet subbands.
ايمان محمد جعفر علوان
doaj
Wavelet Multiresolution Analysis of High-Frequency Asian FX Rates, Summer 1997 [PDF]
FX pricing processes are nonstationary and their frequency characteristics are time-dependent. Most do not conform to geometric Brownian motion, since they exhibit a scaling law with a Hurst exponent between zero and 0.5 and fractal dimensions between 1 ...
CORNELIS A. LOS, JEYANTHI KARUPPIAH
core
The distinctive paper is devoted to multiscale modelling of functions with the use of Haar discrete wavelets. Numerical implementation is realized with the use of “Fortran” programming language (“Intel Visual Fortran” software).
Mojtaba Aslami , Pavel Akimov
doaj +1 more source
The purpose of this study is to establish a simple numerical method based on the Haar wavelet operational matrix of integration for solving two dimensional elliptic partial differential equations of the form, Ñ2u(x, y) + ku(x, y) = f (x, y) with the ...
Nor Artisham, Che Ghani
core
Multi-Resolution Wavelet-Transformed Image Analysis of Histological Sections of Breast Carcinomas
Multi-resolution images of histological sections of breast cancer tissue were analyzed using texture features of Haar- and Daubechies transform wavelets.
Hae-Gil Hwang +5 more
doaj +1 more source
Author Correction: Underwater image restoration with Haar wavelet transform and ensemble of triple correction algorithms using Bootstrap aggregation and random forests. [PDF]
Rowghanian V.
europepmc +1 more source
Efficient Numerical Algorithm for the Solution of Eight Order Boundary Value Problems by Haar Wavelet Method. [PDF]
Amin R +4 more
europepmc +1 more source
Business cycle synchronization according to wavelets – the case of Poland and the euro zone member countries [PDF]
In the paper time-frequency analysis in the form of the maximal overlap discrete wavelet transform (MODWT) and its complex variant – the maximal overlap discrete Hilbert wavelet transform (MODHWT) is applied to study changing patterns of business cycle ...
Joanna Bruzda
core

