Results 81 to 90 of about 77,620 (219)

Funções wavelets de haar e aplicações

open access: yes, 2014
Resumo: Neste trabalho, apresenta-se um estudo de bases ortogonais wavelets, com ênfase no sistema de Haar e suas aplicações. Inicialmente é feita uma breve revisão de conceitos, partindo em seguida para resultados da análise de multirresolução para ...
Wisniewski, Felipe
core   +1 more source

Approximation Of Improper Integral Based On Haar Wavelets

open access: yes, 2019
Previous numerical methods for solving definite integrals based on Haar wavelets was introduced. In this research we extend the previous works by approximate the solution of improper integral based on Haar wavelets functions.
Ahmad Fadly Nurullah Rasedee   +3 more
core  

Lung Lesion Segmentation Using Gaussian Filter and Discrete Wavelet Transform

open access: yesITM Web of Conferences, 2017
Lung cancer is the growth of a tumour, referred to as a nodule that arises from cells covering the airways of the respiratory arrangement. Effective detection of lung cancer at premature stages enables any cure options, and reduce risk of insidious ...
Dimililer Kamil   +2 more
doaj   +1 more source

A well-balanced adaptive Haar wavelet finite volume scheme for 1D free surface water flows

open access: yesAin Shams Engineering Journal, 2019
This paper studies a Haar-wavelet based finite volume method in terms of its capability of preserving a well-balanced property compared to the classical finite volume method, as well as with its application on the real case of the shallow water flow ...
Dilshad A. Haleem
doaj   +1 more source

HAAR WAVELET ANALYSIS OF CLIMATIC TIME SERIES

open access: yesInternational Journal of Wavelets, Multiresolution and Information Processing, 2014
In order to extract the intrinsic information of climatic time series from background red noise, in this paper, we will first give an analytic formula on the distribution of Haar wavelet power spectra of red noise in a rigorous statistical framework. After that, by comparing the difference of wavelet power spectra of real climatic time series and red ...
Zhang, Zhihua   +2 more
openaire   +3 more sources

WAVELET-BASED COMPUTATIONAL FRAMEWORK FOR THE SOLOW-SWAN ECONOMIC MODEL

open access: yesBarekeng
In this paper, we introduce an innovative numerical technique for addressing the classical Solow-Swan economic growth model through the application of the Haar wavelet approach.
Jay Kishore Sahani   +3 more
doaj   +1 more source

Haar-LikeWavelets over Tetrahedra

open access: yesJournal of Computer Science and Technology, 2017
In this paper we define a Haar-like wavelets basis that form a basis for L2(T,S,μ), μ being the Lebesgue measure and S the σ -algebra of all tetrahedra generated from a subdivision method of the T tetrahedron.
Liliana Beatriz Boscardín   +2 more
doaj   +1 more source

Haar wavelets based technique in evolution problems

open access: yes, 2004
The compression property of wavelets in the analysis of an evolution problem (with unsmooth initial conditions) is investigated. The effectiveness of wavelets both in the reduction of complexity (number of coefficients) and in better approximation is ...
CATTANI, Carlo
core  

Orthogonal Wavelets via Filter Banks: Theory and Applications [PDF]

open access: yes, 2000
Wavelets are used in many applications, including image processing, signal analysis and seismology. The critical problem is the representation of a signal using a small number of computable functions, such that it is represented in a concise and ...
Winkler, J.R.
core  

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