Results 21 to 30 of about 2,495,027 (403)
Wavelets on the Interval and Fast Wavelet Transforms
Applied and Computational Harmonic Analysis, 1993 AbstractWe discuss several constructions of orthonormal wavelet bases on the interval, and we introduce a new construction that avoids some of the disadvantages of earlier constructions.
Cohen, Albert +2 more
openaire +3 more sources
The continuous wavelet derived by smoothing function and its application in cosmology [PDF]
Commun. Theor. Phys., 73 (2021), 095402, 2021 The wavelet analysis technique is a powerful tool and is widely used in broad disciplines of engineering, technology, and sciences. In this work, we present a novel scheme of constructing continuous wavelet functions, in which the wavelet functions are obtained by taking the first derivative of smoothing functions with respect to the scale parameter ...
arxiv +1 more source
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
core +1 more source
A high-performance seizure detection algorithm based on Discrete Wavelet Transform (DWT) and EEG
PLoS ONE, 2017 In the past decade, Discrete Wavelet Transform (DWT), a powerful time-frequency tool, has been widely used in computer-aided signal analysis of epileptic electroencephalography (EEG), such as the detection of seizures. One of the important hurdles in the
Duo-jin Chen +3 more
semanticscholar +1 more source
Clifford wavelet transform and the associated Donoho-Stark's uncertainty Principle [PDF]
arXiv, 2022 This paper focuses on studying the Donoho-Stark's type uncertainty principle for the continuous Clifford wavelet transform. A brief review of Clifford algebra/analysis, Clifford wavelet transform and their properties is conducted. Next, such concepts are applied to develop an uncertainty principle based on Clifford wavelets.
arxiv
Application of multi-dimensional wavelet transform to fluid mechanics
Theoretical and Applied Mechanics Letters, 2020 : This paper first reviews the application research works of wavelet transform on the fluid mechanics. Then the theories of continuous wavelet transform and multi-dimensional orthogonal (discrete) wavelet transform, including wavelet multiresolution ...
Akira Rinoshika, Hiroka Rinoshika
doaj
An Algorithm for the Continuous Morlet Wavelet Transform
, 2007 This article consists of a brief discussion of the energy density over time or frequency that is obtained with the wavelet transform. Also an efficient algorithm is suggested to calculate the continuous transform with the Morlet wavelet.
Caprioli +22 more
core +1 more source
Fast spatial combinative lifting algorithm of wavelet transform using the 9/7 filter for image block compression [PDF]
, 2000 This is the post-print version of the article - Copyright @ 2000 IETA new fast spatial combinative lifting algorithm (SCLA) of the wavelet transform using the 9/7 filter for image block compression is proposed.
Cohen +5 more
core +1 more source
Wavelets and Wavelet Packets on Quantum Computers [PDF]
, 1999 We show how periodized wavelet packet transforms and periodized wavelet transforms can be implemented on a quantum computer. Surprisingly, we find that the implementation of wavelet packet transforms is less costly than the implementation of wavelet transforms on a quantum computer.
arxiv +1 more source
The Discrete Wavelet Transform in S [PDF]
Journal of Computational and Graphical Statistics, 1994 Abstract The theory of wavelets has recently undergone a period of rapid development. We introduce a software package called wavethresh that works within the statistical language S to perform one- and two-dimensional discrete wavelet transforms. The transforms and their inverses can be computed using any particular wavelet selected from a range of ...
Nason, GP, Silverman, BW
openaire +4 more sources