Results 21 to 30 of about 5,272,494 (277)

Design of Biorthogonal Wavelets based on Spline and Spline-like Functions for Image Compression

open access: yesInternational Journal of Emerging Research in Engineering, Science, and Management, 2022
Wavelet theory inspired from Fourier analysis is based on the basis function and its properties. Different wavelets use different basis functions which may better suit to some applications.
K Subramanyam, T Ramasri
doaj   +1 more source

Mathematical approximator based on basic spline approximation [PDF]

open access: yesE3S Web of Conferences
The article considers the problem of constructing a mathematical piecewise linear approximator based on approximation by basis splines. An algorithm has been developed designed to implement a class of special functions and create parallel ...
Turdimatov Mamirjon   +5 more
doaj   +1 more source

Optimized Trigonometric Spline Function with Conjugate GradientMethod for Solving FDEs [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2022
We investigate the non-polynomial spline function to solve the fractional differential equations with the conformable conjugate gradient method.  The fractional derivative was described using the Caputo fractional derivative to construct the spline ...
Faraidun Hamasalh   +2 more
doaj   +1 more source

A Proposed Method for Detecting Fake Art by Using B-Spline Curves [PDF]

open access: yesEngineering and Technology Journal, 2012
This paper presents proposed method for detecting fake art by using B-Spline curves. In this paper B-Spline curve is used with special technique helps to determine the difference between the excellent copy and the real McCoy image. In the proposed method
Abdul Monem S. Rahma   +1 more
doaj   +1 more source

Spline Functions and the Problem of Graduation [PDF]

open access: yesProceedings of the National Academy of Sciences, 1964
The aim of this note is to extend some of the recent work on spline interpolation so as to include also a solution of the problem of graduation of data. The well-known method of graduation due to E. T. Whittaker suggests how this should be done. Here we merely describe the idea and the qualitative aspects of the new method, while proofs and the ...
openaire   +2 more sources

Solution of the Second Order of the Linear Hyperbolic Equation Using Cubic B-Spline Collocation Numerical Method

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
Wave equation is one of the second order of the linear hyperbolic equation. Telegraph equation as a special case of wave equation has interesting point to investigate in the numerical point of view.
Aflakha Kharisa   +2 more
doaj   +1 more source

Modeling of complex-valued Wiener systems using B-spline neural network

open access: yes, 2011
In this brief, a new complex-valued B-spline neural network is introduced in order to model the complex-valued Wiener system using observational input/output data. The complex-valued nonlinear static function in the Wiener system is represented using the
Hong, Xia   +3 more
core   +2 more sources

A quadratic spline maximum entropy method for the computation of invariant densities

open access: yes上海师范大学学报. 自然科学版, 2015
The numerical recovery of an invariant density of the Frobenius-Perron operator corresponding to a nonsingular transformation is depicted by using quadratic spline functions. We implement a maximum entropy method to approximate the invariant density. The
DING Jiu, UPADHYAY Tulsi
doaj   +1 more source

Arbitrarily Accurate Analytical Approximations for the Error Function

open access: yesMathematical and Computational Applications, 2022
A spline-based integral approximation is utilized to define a sequence of approximations to the error function that converge at a significantly faster manner than the default Taylor series.
Roy M. Howard
doaj   +1 more source

Algorithms for Solving Volterra Integral Equations Using Non-Polynomial Spline Function

open access: yesWasit Journal for Pure Sciences, 2023
This paper discusses some algorithms for solving Volterra's integral equations of the second degree using non-boundary spline functions, including (linear and cubic), as the linear spline function presents some laws and algorithms of its own, as well as
Issa Hamza, Ahmed Shihab Al-Atabi
doaj   +1 more source

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