Wavelet-Based Algorithm for Signal Analysis
This paper presents a computational algorithm for identifying power frequency variations and integer harmonics by using wavelet-based transform. The continuous wavelet transform (CWT) using the complex Morlet wavelet (CMW) is adopted to detect the ...
Lai LL, Tse Norman CF
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Fast spatial combinative lifting algorithm of wavelet transform using the 9/7 filter for image block compression [PDF]
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
A high-performance seizure detection algorithm based on Discrete Wavelet Transform (DWT) and EEG
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
Optimal decomposition level of discrete, stationary and dual tree complex wavelet transform for pixel based fusion of multi-focused images [PDF]
The fast development of digital image processing leads to the growth of feature extraction of images which leads to the development of Image fusion. The process of combining two different images into a new single image by retaining salient features from ...
Kannan Kanagaraj +2 more
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Discrete Wavelet Transform [PDF]
In general, discrete wavelet transforms are generated by samplings (in the time-scale plane) of a rorn sponding continuous wavelet transform.
openaire +1 more source
An Algorithm for the Continuous Morlet Wavelet Transform
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
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Continuous wavelet transform on local fields [PDF]
The main objective of this paper is to define the mother wavelet on local fields and study the continuous wavelet transform (CWT) and some of their basic properties.
Pathak, Ashish
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The Reproducing Kernel Function for the Image Space of a Limited Spectrum Wavelet Transform
In order to describe the nature of image space of the wavelet transform and a limited spectrum and decay faster wavelet,this paper uses Shannon scaling function to construct a wavelet function,take advantage of wavelet analysis theory to give the nature ...
DENG Cai-xia, HE Peng, CHEN Xia-xia
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Non-decimated Wavelet Transform for a Shift-invariant Analysis
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
Wavelets, ridgelets and curvelets on the sphere [PDF]
We present in this paper new multiscale transforms on the sphere, namely the isotropic undecimated wavelet transform, the pyramidal wavelet transform, the ridgelet transform and the curvelet transform. All of these transforms can be inverted i.e.
Aghanim +33 more
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