Results 11 to 20 of about 3,457,264 (301)
Discrete Transforms and Orthogonal Polynomials of (Anti)Symmetric Multivariate Cosine Functions [PDF]
SIAM Journal on Numerical Analysis, 2014 The discrete cosine transforms of types V--VIII are generalized to the antisymmetric and symmetric multivariate discrete cosine transforms. Four families of discretely and continuously orthogonal Chebyshev-like polynomials corresponding to the ...
J. Hrivnák, L. Motlochová
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Coding Implementation By Using Discrete Wavelet Transform [PDF]
Engineering and Technology Journal, 2010 Image processing can be considered as an essential part of wide rangecomputer applications. This application deals with image coding and it discussesimage coding schemes, by using transforms to code the image or not.
Matheel Emad AL-Deen AL-Dargazli +1 more
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Generalized Orthogonal Discrete W Transform and Its Fast Algorithm
Discrete Dynamics in Nature and Society, 2021 Based on the generalized discrete Fourier transform, the generalized orthogonal discrete W transform and its fast algorithm are proposed and derived in this paper. The orthogonal discrete W transform proposed by Zhongde Wang has only four types. However,
Jichao Sun, Zhengping Zhang
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Discrete cosine and sine transforms generalized to honeycomb lattice [PDF]
Journal of Mathematics and Physics, 2017 The discrete cosine and sine transforms are generalized to a triangular fragment of the honeycomb lattice. The honeycomb point sets are constructed by subtracting the root lattice from the weight lattice points of the crystallographic root system $A_2 ...
J. Hrivnák, L. Motlochová
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Multidimensional sampling theorems for multivariate discrete transforms
Advances in Difference Equations, 2021 This paper is devoted to the establishment of two-dimensional sampling theorems for discrete transforms, whose kernels arise from second order partial difference equations.
H. A. Hassan
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Discrete Hausdorff transformations [PDF]
Proceedings of the American Mathematical Society, 1973 Let K K be a complex valued measurable function on ( 0 , 1 ] (0,1] such that ∫ 0 1 t − 1 / p
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Multiplication Symmetric Convolution Property for Discrete Trigonometric Transforms
Algorithms, 2009 The symmetric-convolution multiplication (SCM) property of discrete trigonometric transforms (DTTs) based on unitary transform matrices is developed. Then as the reciprocity of this property, the novel multiplication symmetric-convolution (MSC) property ...
Do Nyeon Kim, K. R. Rao
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Eye State Identification Based on Discrete Wavelet Transforms
Applied Sciences, 2021 We present a prototype to identify eye states from electroencephalography signals captured from one or two channels. The hardware is based on the integration of low-cost components, while the signal processing algorithms combine discrete wavelet ...
Francisco Laport +4 more
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Filtering of Audio Signals Using Discrete Wavelet Transforms
Mathematics, 2023 Nonlinear diffusion has been proved to be an indispensable approach for the removal of noise in image processing. In this paper, we employ nonlinear diffusion for the purpose of denoising audio signals in order to have this approach also recognized as a ...
H. K. Nigam, H. M. Srivastava
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Discrete Lebedev’s index transforms [PDF]
Rendiconti del Circolo Matematico di Palermo Series 2, 2021 Discrete analogs of the Lebedev transforms with the product of the modified Bessel functions are introduced and investigated. Several expansions of suitable functions and sequences in terms of the series and integrals, involving the modified and incomplete Bessel functions are established.
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