Results 21 to 30 of about 4,196 (185)

Multiresolution analysis of arbitrary meshes [PDF]

Proceedings of the 22nd annual conference on Computer graphics and interactive techniques - SIGGRAPH '95, 1995
In computer graphics and geometric modeling, shapes are often represented by triangular meshes. With the advent of laser scanning systems, meshes of extreme complexity are rapidly becoming commonplace. Such meshes are notoriously expensive to store, transmit, render, and are awkward to edit.
Matthias Eck 0002, Tony DeRose, Tom Duchamp, Hugues Hoppe, Michael Lounsbery, Werner Stuetzle   +5 more
openaire   +1 more source

Textural segmentation of remotely sensed images using multiresolution analysis for slum area identification

European Journal of Remote Sensing, 2019
Many cities in developing countries are facing rapid growth of dynamic slum areas but often lack detailed information and analysis on these informal settlements. Multiresolution analysis (MRA) has been successfully used in texture analysis.
Rizwan Ahmed Ansari, Krishna Mohan Buddhiraju   +1 more
doaj   +1 more source

Quadratic Phase Multiresolution Analysis and the Construction of Orthonormal Wavelets in L²(ℝ)

Axioms, 2023
The multi-resolution analysis (MRA) associated with quadratic phase Fourier transform (QPFT) serves as a tool to construct orthogonal bases of the L2(R). Consequently, it assumes a pivotal role in facilitating potential applications of QPFT.
Bivek Gupta, Navneet Kaur, Amit K. Verma, Ravi P. Agarwal   +3 more
doaj   +1 more source

Mapping and characterizing selected canopy tree species at the Angkor World Heritage site in Cambodia using aerial data. [PDF]

PLoS ONE, 2015
At present, there is very limited information on the ecology, distribution, and structure of Cambodia's tree species to warrant suitable conservation measures.
Minerva Singh, Damian Evans, Boun Suy Tan, Chan Samean Nin   +3 more
doaj   +1 more source

Fault analysis using Gegenbauer multiresolution analysis [PDF]

2004 IEEE/PES Transmision and Distribution Conference and Exposition: Latin America (IEEE Cat. No. 04EX956), 2005
This paper exploits the multiresolution analysis in the fault analysis on transmission lines. Faults were simulated using the ATP (Alternative Transient Program), considering signals at 128/cycle. A nonorthogonal multiresolution analysis was provided by Gegenbauer scaling and wavelet filters. In the cases where the signal reconstruction is not required,
Luciana R. Soares, Hélio M. de Oliveira
openaire   +2 more sources

Error bounds of a function related to generalized Lipschitz class via the pseudo-Chebyshev wavelet and its applications in the approximation of functions

Karpatsʹkì Matematičnì Publìkacìï, 2022
In this paper, a new computation method derived to solve the problems of approximation theory. This method is based upon pseudo-Chebyshev wavelet approximations. The pseudo-Chebyshev wavelet is being presented for the first time.
S. Lal, S. Kumar, S.K. Mishra, A.K. Awasthi   +3 more
doaj   +1 more source

Wavelets biortogonais

Revista Brasileira de Ensino de Física
A transformada wavelet biortogonal e as bases wavelet são uma poderosa ferramenta para análise de dados multiescala, que tem vastas aplicações na física, matemática, computação e tecnologias.
Margarete Oliveira Domingues, Magda Kimico Kaibara   +1 more
doaj   +1 more source

GPU-parallelisation of Haar wavelet-based grid resolution adaptation for fast finite volume modelling: application to shallow water flows

Journal of Hydroinformatics, 2023
Wavelet-based grid resolution adaptation driven by the ‘multiresolution analysis’ (MRA) of the Haar wavelet (HW) allows to devise an adaptive first-order finite volume (FV1) model (HWFV1) that can readily preserve the modelling fidelity of its reference ...
Alovya Ahmed Chowdhury, Georges Kesserwani, Charles Rougé, Paul Richmond   +3 more
doaj   +1 more source

The Multiresolution Analysis of Flow Graphs [PDF]

, 2019
WoLLIC 2019; 19 pages.
openaire   +2 more sources

A Hypergeometric Basis for the Alpert Multiresolution Analysis [PDF]

SIAM Journal on Mathematical Analysis, 2015
We construct an explicit orthonormal basis of piecewise ${}_{i+1}F_{i}$ hypergeometric polynomials for the Alpert multiresolution analysis. The Fourier transform of each basis function is written in terms of ${}_2F_3$ hypergeometric functions. Moreover, the entries in the matrix equation connecting the wavelets with the scaling functions are shown to ...
Jeffrey S. Geronimo, Plamen Iliev
openaire   +2 more sources