Results 31 to 40 of about 20,542 (239)
Compression Analysis Using Coiflets, Haar Wavelet, and SVD Methods
JUITA: Jurnal Informatika, 2021 The image problem lies in the amount of storage space required, to save memory as little as possible image compression is required. The image compression technique is a technique used to represent an image by reducing the quality of the original image but still retaining the information inside.
Muhamad Aznar Abdillah +2 more
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Dynamics of flight of the fragments with higher order Haar wavelet method [PDF]
Proceedings of the Estonian Academy of SciencesFragments that have an irregular shape and move at high speeds are difficult to assess since experiments require high-tech solutions, and the differential equations that describe the motion cannot be solved analytically.
Lenart Kivistik +3 more
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Comments on "phase-shifting for nonseparable 2-D haar wavelets" [PDF]
, 2009 In their recent paper, Alnasser and Foroosh derive a wavelet-domain (in-band) method for phase-shifting of 2-D "nonseparable" Haar transform coefficients. Their approach is parametrical to the (a priori known) image translation.
Andreopoulos, Y
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International Journal of Mathematical, Engineering and Management Sciences, 2023 The objective of this study is to explore non-dyadic Haar wavelets for higher order integro-differential equations. In this research article, non-dyadic collocation method is introduced by using Haar wavelet for approximating the solution of higher order
Ratesh Kumar, Sabiha Bakhtawar
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Multilevel Approach For Signal Restoration Problems With Toeplitz Matrices [PDF]
, 2010 We present a multilevel method for discrete ill-posed problems arising from the discretization of Fredholm integral equations of the first kind. In this method, we use the Haar wavelet transform to define restriction and prolongation operators within a ...
Español, Malena I., Kilmer, Misha E.
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A Haar Wavelet Decision Feedback Channel Estimation Method in OFDM Systems
Applied Sciences, 2018 Channel estimation is a key technology in improving the performance of the orthogonal frequency division multiplexing (OFDM) system. The pilot-based channel estimation method decreases the spectral efficiency and data transmission rate. Some conventional
Ruiguang Tang, Xiao Zhou, Chengyou Wang
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Numerical solution of damped forced oscillator problem using Haar wavelets [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2015 We present here the numerical solution of damped forced oscillator problem using Haar wavelet and compare the numerical results obtained with some well-known numerical methods such as Runge-Kutta fourth order classical and Taylor Series methods ...
Inderdeep Singh, Sheo Kumar
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ENO-wavelet transforms for piecewise smooth functions [PDF]
, 2002 We have designed an adaptive essentially nonoscillatory (ENO)-wavelet transform for approximating discontinuous functions without oscillations near the discontinuities. Our approach is to apply the main idea from ENO schemes for numerical shock capturing
Chan, Tony F., Zhou, H. M.
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Comparison between the Heun's and Haar Wavelet Methods for solution Differential-Algebraic Equations (DAEs) [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2009 In this paper, We solved the system of differential-algebraic equation (DAEs) of index one numerically with Heun's method and operational matrices of Haar wavelet method, When we compared the results of the two methods with the exact solution, show that ...
Abdulghafor Al-Rozbayani, Ahmed Qasem
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Simulation of Field Theories in Wavelet Representation [PDF]
, 1994 The field is expanded in a wavelet series and the wavelet coefficients are varied in a simulation of the 2D $\phi^4$ field theory. The drastically reduced autocorrelations result in a substantial decrease of computing requirements, compared to those in ...
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