Results 21 to 30 of about 48,101,502 (271)

A Short Note on Wavelet Frames Based on FMRA on Local Fields

open access: yesJournal of Mathematics, 2020
The concept of frame multiresolution analysis (FMRA) on local fields of positive characteristic was given by Shah in his paper, Frame Multiresolution Analysis on Local Fields published by Journal of Operators.
M. Younus Bhat
doaj   +1 more source

Unsupervised 3D Learning for Shape Analysis via Multiresolution Instance Discrimination [PDF]

open access: yesAAAI Conference on Artificial Intelligence, 2020
We propose an unsupervised method for learning a generic and efficient shape encoding network for different shape analysis tasks. Our key idea is to jointly encode and learn shape and point features from unlabeled 3D point clouds.
Peng-Shuai Wang   +5 more
semanticscholar   +1 more source

3D medical volume segmentation using hybrid multiresolution statistical approaches [PDF]

open access: yes, 2010
This article is available through the Brunel Open Access Publishing Fund. Copyright © 2010 S AlZu’bi and A Amira.3D volume segmentation is the process of partitioning voxels into 3D regions (subvolumes) that represent meaningful physical entities which ...
Alzubi, S   +3 more
core   +1 more source

Construction of Orthonormal Piecewise Polynomial Scaling and Wavelet Bases on Non-Equally Spaced Knots

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper investigates the mathematical framework of multiresolution analysis based on irregularly spaced knots sequence. Our presentation is based on the construction of nested nonuniform spline multiresolution spaces.
Zergaïnoh Anissa   +2 more
doaj   +2 more sources

Application of multi-dimensional wavelet transform to fluid mechanics

open access: yesTheoretical and Applied Mechanics Letters, 2020
: This paper first reviews the application research works of wavelet transform on the fluid mechanics. Then the theories of continuous wavelet transform and multi-dimensional orthogonal (discrete) wavelet transform, including wavelet multiresolution ...
Akira Rinoshika, Hiroka Rinoshika
doaj   +1 more source

On the Application of the Generalized Means to Construct Multiresolution Schemes Satisfying Certain Inequalities Proving Stability

open access: yesMathematics, 2021
Multiresolution representations of data are known to be powerful tools in data analysis and processing, and they are particularly interesting for data compression.
Sergio Amat   +4 more
doaj   +1 more source

Wavelets Defined Over Non Nested Tetrahedral Grids: A Theoretical Approach

open access: yesJournal of Computer Science and Technology, 2019
The main contribution of this paper is the definition of wavelets over non nested tetrahedral grids, allowing the representation of functions defined on an a irregular tetrahedralization. In this way, it is possible to represent different attributes of a
Liliana B. Boscardin   +2 more
doaj   +1 more source

Multiresolution analysis for irregular meshes [PDF]

open access: yesSPIE Proceedings, 2004
The concept of multiresolution analysis applied to irregular meshes has become more and more important. Previous contributions proposed a variety of methods using simplification and/or subdivision algorithms to build a mesh pyramid. In this paper, we propose a multiresolution analysis framework for irregular meshes with attributes.
Michael, Roy   +4 more
openaire   +2 more sources

On multiresolution analysis of multiplicityd

open access: yesMonatshefte für Mathematik, 1997
A multiresolution analysis (MRA) of multiplicity \(d\) of \(L^2({\mathbb{R}}^n)\) is a generalization of the usual MRA, where the sample spaces are generated by a refinable vector of \(d\) functions. The paper is concerned with the multivariate case, where the dilation matrix is \(2I\).
DE MICHELE, LEONEDE   +1 more
openaire   +3 more sources

PWNet: An Adaptive Weight Network for the Fusion of Panchromatic and Multispectral Images

open access: yesRemote Sensing, 2020
Pansharpening is a typical image fusion problem, which aims to produce a high resolution multispectral (HRMS) image by integrating a high spatial resolution panchromatic (PAN) image with a low spatial resolution multispectral (MS) image.
Junmin Liu   +3 more
doaj   +1 more source

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