Results 91 to 100 of about 20,542 (239)
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
Signal processing methods based on the combined use of the continuous wavelet transform (CWT) and zero-crossing technique were applied to the simultaneous spectrophotometric determination of perindopril (PER) and indapamide (IND) in tablets. These signal
Gözde Pektaş +2 more
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Image Compression using Haar and Modified Haar Wavelet Transform
Efficient image compression approaches can provide the best solutions to the recent growth of the data intensive and multimedia based applications. As presented in many papers the Haar matrix–based methods and wavelet analysis can be used in various ...
Mohannad Abid Shehab Ahmed +2 more
doaj
The Real and Complex Techniques in Harmonic Analysis from the Point of View of Covariant Transform
This note reviews complex and real techniques in harmonic analysis. We describe a common source of both approaches rooted in the covariant transform generated by the affine group.
Kisil, Vladimir V.
core
SOLVING NONLINEAR PDES USING THE HIGHER ORDER HAAR WAVELET METHOD ON NONUNIFORM AND ADAPTIVE GRIDS
Mart Ratas, Andrus Salupere, Jüri Majak
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Optimizing pantograph fractional differential equations: A Haar wavelet operational matrix method
In this study, we developed an operational matrix method of integration using Haar wavelets to solve both linear and nonlinear pantograph fractional differential equations by taking Atangana's beta derivative.
Najeeb Alam Khan +5 more
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NUMERICAL SOLUTION OF NON-LINEAR LIENARD EQUATION USING HAAR WAVELET METHOD
Summary: In this article, we propose the Haar wavelet method (HWM) for the numerical solution of linear and non-linear Liénard equations. This method transforms the Liénard equation into a system of algebraic equations using truncated Haar wavelet expansions, which is then solved using Newton's iteration method.
Sahani, Jay Kishore +3 more
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Haar wavelet collocation method for solving singular and nonlinear fractional time-dependent Emden–Fowler equations with initial and boundary conditions [PDF]
Amir Mohammadi +2 more
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COMPARISON BETWEEN HAAR WAVELET TRANSFORM, DCT A PROPOSED COLUMN- MEAN- METHOD BASED IRIS ENCODER [PDF]
I Zedan, M. Sobhi
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