Results 21 to 30 of about 289,031 (382)

Wavelet p-analogs of the discrete Haar transform [PDF]

open access: yesИзвестия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, 2021
Two $p$-analogs (for $p>2$) of the discrete version of the Haar system in vector symbolism are proposed and fast algorithms are constructed based on them.
Bespalov, Mikhail S.
doaj   +1 more source

General model for best feature extraction of EEG using discrete wavelet transform wavelet family and differential evolution

open access: yesInt. J. Distributed Sens. Networks, 2020
Wavelet family and differential evolution are proposed for categorization of epilepsy cases based on electroencephalogram (EEG) signals. Discrete wavelet transform is widely used in feature extraction step because it efficiently works in this field, as ...
Ahmad Al-qerem   +4 more
semanticscholar   +1 more source

Discrete Wavelet Transform Meets Transformer: Unleashing the Full Potential of the Transformer for Visual Recognition

open access: yesIEEE Access, 2023
Traditionally, the success of the Transformer has been attributed to its token mixer, particularly the self-attention mechanism. However, recent studies suggest that replacing such attention-based token mixer with alternative techniques can yield ...
Dongwook Yang, Seung-Woo Seo
doaj   +1 more source

Analysis of the Quantization Noise in Discrete Wavelet Transform Filters for 3D Medical Imaging

open access: yesApplied Sciences, 2020
Denoising and compression of 2D and 3D images are important problems in modern medical imaging systems. Discrete wavelet transform (DWT) is used to solve them in practice.
N. Chervyakov   +2 more
semanticscholar   +1 more source

PENERAPAN TRANSFORMASI DATA DISCRETE WAVELET TRANSFORM PADA NEURAL NETWORK UNTUK PREDIKSI HARGA SAHAM

open access: yesJurnal Riset Informatika, 2019
Research on stock prices is still interesting for researchers. As in this study, ANTM's stock price closing data is used as a data set that is processed to be then predicted in the future. The Neural Network method is a method that is very widely used by
Indah Suryani
doaj   +1 more source

Comments on "phase-shifting for nonseparable 2-D haar wavelets" [PDF]

open access: yes, 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

Wavelets and their use [PDF]

open access: yes, 2001
This review paper is intended to give a useful guide for those who want to apply discrete wavelets in their practice. The notion of wavelets and their use in practical computing and various applications are briefly described, but rigorous proofs of ...
Dremin, I. M.   +2 more
core   +2 more sources

A recursive scheme for computing autocorrelation functions of decimated complex wavelet subbands [PDF]

open access: yes, 2010
This paper deals with the problem of the exact computation of the autocorrelation function of a real or complex discrete wavelet subband of a signal, when the autocorrelation function (or Power Spectral Density, PSD) of the signal in the time domain (or ...
Aelterman, Jan   +3 more
core   +1 more source

Accelerating discrete wavelet transforms on GPUS [PDF]

open access: yes2017 IEEE International Conference on Image Processing (ICIP), 2017
The two-dimensional discrete wavelet transform has a huge number of applications in image-processing techniques. Until now, several papers compared the performance of such transform on graphics processing units (GPUs). However, all of them only dealt with lifting and convolution computation schemes.
David Barina   +3 more
openaire   +3 more sources

Wind Power Short-Term Prediction Based on LSTM and Discrete Wavelet Transform

open access: yesApplied Sciences, 2019
A wind power short-term forecasting method based on discrete wavelet transform and long short-term memory networks (DWT_LSTM) is proposed. The LSTM network is designed to effectively exhibit the dynamic behavior of the wind power time series.
Yao Liu   +6 more
semanticscholar   +1 more source

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