Results 131 to 140 of about 4,196 (185)
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Multiresolution analysis frames with applications
IEEE International Conference on Acoustics Speech and Signal Processing, 1993A generalization of multiresolution analysis (MRA) to arbitrary affine frames, and the constructions of affine frames based on MRAs are considered and characterized. The authors define a frame multiresolution analysis (FMRA) and provide a necessary and sufficient condition for constructing frames of translates.
John J. Benedetto, Shidong Li
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Color Quantization by Multiresolution Analysis
2009A color quantization method is presented, which is based on the analysis of the histogram at different resolutions computed on a Gaussian pyramid of the input image. Criteria based on persistence and dominance of peaks and pits of the histograms are introduced to detect the modes in the histogram of the input image and to define the reduced colormap ...
Ramella G, Sanniti di Baja G
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-NONUNIFORM MULTIRESOLUTION ANALYSIS
Journal of the Australian Mathematical Society, 2021AbstractGabardo and Nashed [‘Nonuniform multiresolution analyses and spectral pairs’, J. Funct. Anal.158(1) (1998), 209–241] have introduced the concept of nonuniform multiresolution analysis (NUMRA), based on the theory of spectral pairs, in which the associated translated set $\Lambda =\{0,{r}/{N}\}+2\mathbb Z$ is not necessarily a discrete ...
S. PITCHAI MURUGAN, G. P. YOUVARAJ
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Wavelets with Frame Multiresolution Analysis
Journal of Fourier Analysis and Applications, 2003Let \(A\) be a \(d\times d\) real expansive matrix, i.e., a matrix whose eigenvalues are all of modulus greater than 1. Then a function \(\psi \in L^2(\mathbb{R}^d)\) is an \(A\)-\textit{dilation wavelet} if the system \(|\text{det} A|^{n/2} \psi (A^n x - l)\), \(n\in \mathbb{Z}\), \(l\in \mathbb{Z}^d\), forms an orthonormal basis for \(L^2(\mathbb{R ...
Dai, X., Diao, Y., Gu, Q., Han, D.
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Wavelets and Mallat's Multiresolution Analysis
Fundamenta Informaticae, 1998We present a simple proof of Mallat's theorem about wavelet and multiresolution analysis. We do not use Fourier transform and the proof is accesible even for younger undergraduate students.
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2008
Multiresolution analysis has received considerable attention in recent years by researchers in the fields of computer graphics, geometric modeling and visualization. They are now considered a powerful tool for efficiently representing functions at multiple levels-of-detail with many inherent advantages, including compression, Level-Of-Details (LOD ...
Bonneau, Georges-Pierre +3 more
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Multiresolution analysis has received considerable attention in recent years by researchers in the fields of computer graphics, geometric modeling and visualization. They are now considered a powerful tool for efficiently representing functions at multiple levels-of-detail with many inherent advantages, including compression, Level-Of-Details (LOD ...
Bonneau, Georges-Pierre +3 more
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Discrete Periodic Multiresolution Analysis
Journal of Mathematical Sciences, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Multiresolution-information analysis for images
Signal Processing, 1991Abstract This paper is devoted to the analysis and characterization of images in the framework of multiresolution. We use the gray level histogram entropy as the best representation of the information provided by an image. First, we introduce the concept of ‘entropy per pixel’ provided by a class of images given at a certain resolution level, and ...
Ramón Román-Roldán +2 more
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Multiresolution analysis of heart sounds
Proceedings of Third International Conference on Electronics, Circuits, and Systems, 2002The wavelet transform, which is a new time-scale technique suitable for transient signal detection is applied to phonocardiogram signals taken from group of patients. It has been shown that using this new technique the separation between normal and abnormal subject could easily be obtained. Moreover, a separation between the high frequency systolic and
B. El-Asir +3 more
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A Construction of Multiresolution Analysis on Interval
Acta Mathematica Sinica, English Series, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chen, Di Rong, Xiang, Dao Hong
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