Results 11 to 20 of about 254,430 (319)
L. Bruce, Cliff Morgan, S. Larsen
semanticscholar +3 more sources
The paper aims to analyze the performance of the damage identification algorithms using the directional wavelet transforms, which reveal higher sensitivity for various orientations of spatial damage together with lower susceptibility to noise.
Andrzej Katunin
doaj +1 more source
Eye State Identification Based on Discrete Wavelet Transforms
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
doaj +1 more source
Filtering of Audio Signals Using Discrete Wavelet Transforms
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
doaj +1 more source
Local transformations with a singular wavelet
The paper considers a local wavelet transform with a singular basis wavelet. The problem of nonparametric approximation of a function is solved by the use of theĀ sequence of local wavelet transforms.
V. M. Romanchak
doaj +1 more source
Coding Implementation By Using Discrete Wavelet Transform [PDF]
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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The Improvement of Discrete Wavelet Transform
Discrete wavelet transform and discrete periodic wavelet transform have been widely used in image compression and data approximation. Due to discontinuity on the boundary of original data, the decay rate of the obtained wavelet coefficients is slow.
Zhihua Zhang
semanticscholar +1 more source
Comparative analysis of chosen transforms in the context of de-noising harmonic signals [PDF]
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
Effective lattice structures for separable two-dimensional orthogonal wavelet transforms [PDF]
Discrete two-dimensional orthogonal wavelet transforms find applications in many areas of analysis and processing of digital images. In a typical scenario the separability of two-dimensional wavelet transforms is assumed and all calculations follow the ...
Dariusz Puchala
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