Results 31 to 40 of about 1,560,355 (287)

Wavelet packet analysis for rotor bar breakage in an inverter induction motor

open access: yesElectrical engineering & Electromechanics, 2023
Introduction. In various industrial processes, squirrel cage induction motors are widely employed. These motors can be used in harsh situations, such as non-ventilated spaces, due to their high strength and longevity.
O. Z. I. Abu Ibaid   +5 more
doaj   +1 more source

LDPC coded hybrid discrete cosine transform and Fejér–Korovkin wavelet transform-based SC-FDMA for image communication

open access: yes, 2021
A low-density parity-check (LDPC) coded single-carrier frequency-division multiple access (SC-FDMA) system is proposed for effective image transmission.
Saha, Ritu   +9 more
core   +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

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

Image Enhancement Based on Wavelet Transform and Contrast  Limited Adaptive Histogram Equalization

open access: yesJournal of Harbin University of Science and Technology, 2018
Contrast limited adaptive histogram equalization (CLAHE) is an efficient algorithm to improve the local details of an image In this paper, we propose an image enhancement method named CLAHE Discrete Wavelet Transform to solve the problem of contrast and
YU Tian-he   +3 more
doaj   +1 more source

Multiscale texture classification using dual-tree complex wavelet transform [PDF]

open access: yes, 2009
This paper presents a multiscale texture classifier that exploits the Gabor-like properties of the dual-tree complex wavelet transform, shift invariance and six directional subbands at each scale, and uses a feature vector comprising of a variance and an
Tjahjadi, Tardi, Çelik, Turgay
core   +1 more source

Parallel Implementation of Wavelet-based Image Denoising on Programmable PC-grade Graphics Hardware [PDF]

open access: yes, 2010
The Discrete Wavelet Transform (DWT) has been extensively used for image compression and denoising in the areas of image processing and computer vision. However, the intensive computation of DWT due to its multilevel data decomposition and reconstruction
Xu, Zhijie, Su, Yang
core   +1 more source

Non-decimated Wavelet Transform for a Shift-invariant Analysis

open access: yesTrends in Computational and Applied Mathematics, 2018
Due to the ability of time-frequency location, the wavelet transform has been applied in several areas of research involving signal analysis and processing, often replacing the conventional Fourier transform.
Gabriela de Oliveira Nascimento Brassarote   +2 more
doaj   +1 more source

Comparative analysis of chosen transforms in the context of de-noising harmonic signals [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
In the article, comparison of popular transforms used i.a. in denoising harmonical signals was presented. The division of signals submitted to mathematical analysis was shown and chosen transforms such as Short Time Fourier Transform, Wigner-Ville ...
Artur Zacniewski
doaj   +1 more source

Quality assessment by region in spot images fused by means dual-tree complex wavelet transform [PDF]

open access: yes, 2011
This work is motivated in providing and evaluating a fusion algorithm of remotely sensed images, i.e. the fusion of a high spatial resolution panchromatic image with a multi-spectral image (also known as pansharpening) using the dual-tree complex wavelet
Arquero Hidalgo, Águeda   +2 more
core   +1 more source

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