Results 11 to 20 of about 4,196 (185)

Neurovascular-metabolic dysregulation, metabolic connectomics, and metabolic functional changes in Alzheimer's disease: A preclinical and clinical comparison. [PDF]

open access: yesAlzheimers Dement
Abstract Historically, imaging diagnostics in Alzheimer's disease (AD) have focused primarily on amyloid and tau accumulation; however, recent work suggests that neurometabolic and vascular dysregulation (MVD) may precede protein deposition and persist throughout the disease spectrum, preclinically and clinically.
Chong Chie JAK   +6 more
europepmc   +2 more sources

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

APPLICABILITY OF MULTI-SEASONAL X-BAND SAR IMAGERY FOR MULTIRESOLUTION SEGMENTATION: A CASE STUDY IN A RIPARIAN MIXED FOREST [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The increasing availability of synthetic aperture radar (SAR) data from a range of different sensors necessitates efficient methods for semi-automated information extraction at multiple spatial scales for different fields of application. The focus of the
Z. Dabiri   +3 more
doaj   +1 more source

Analysis on Multiresolution Mosaic Images [PDF]

open access: yesIEEE Transactions on Image Processing, 2004
Image mosaicing is the act of combining two or more images and is used in many applications in computer vision, image processing, and computer graphics. It aims to combine images such that no obstructive boundaries exist around overlapped regions and to create a mosaic image that exhibits as little distortion as possible from the original images.
Ming-Shing Su   +2 more
openaire   +2 more sources

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

Multiresolution Analysis Adapted to Irregularly Spaced Data

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
This paper investigates the mathematical background of multiresolution analysis in the specific context where the signal is represented by irregularly sampled data at known locations.
Anissa Mokraoui, Pierre Duhamel
doaj   +1 more source

Wavelet geographically weighted regression for spectroscopic modelling of soil properties

open access: yesScientific Reports, 2021
Soil properties, such as organic carbon, pH and clay content, are critical indicators of ecosystem function. Visible–near infrared (vis–NIR) reflectance spectroscopy has been widely used to cost-efficiently estimate such soil properties.
Yongze Song   +3 more
doaj   +1 more source

Multiresolution analysis applied to interpretation of seismic reflection data [PDF]

open access: yesGeofísica Internacional, 2005
We have developed a method of seismic multiresolution analysis based on the discrete wavelet transform. We illustrate the potential use in petroleum exploration of the joint application of multiresolution analysis and seismic attributes for a real case ...
J. O. Campos-Enríquez   +3 more
doaj  

Multiresolution Analysis of EEG Signals

open access: yesStudies in Logic, Grammar and Rhetoric, 2016
This paper reports on a multiresolution analysis of EEG signals. The dominant frequency components of signals with and without observed epileptic discharges were compared.
Borowska Marta, Białobłocka Natalia
doaj   +1 more source

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