Results 11 to 20 of about 39,634 (207)

ROI coding of volumetric medical images with application to visualisation [PDF]

open access: yes, 2003
This paper presents region of interest (ROI) coding of volumetric medical images with the region itself being three dimensional. An extension to 3D-SPIHT which allows 3D ROI coding is proposed.
Agrafiotis, D, Bull, DR, Canagarajah, CN
core   +2 more sources

A new class of wavelet networks for nonlinear system identification [PDF]

open access: yes, 2004
A new class of wavelet networks (WNs) is proposed for nonlinear system identification. In the new networks, the model structure for a high-dimensional system is chosen to be a superimposition of a number of functions with fewer variables.
Billings, S.A., Wei, H.L.
core   +2 more sources

On a class of self-similar processes with stationary increments in higher order Wiener chaoses

open access: yes, 2012
We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes.
Arras, Benjamin
core   +2 more sources

Adaptive transient solution of nonuniform multiconductor transmission lines using wavelets [PDF]

open access: yes, 2000
—This paper presents a highly adaptive algorithm for the transient simulation of nonuniform interconnects loaded with arbitrary nonlinear and dynamic terminations.
Grivet-Talocia, S.
core   +2 more sources

The solution of multi-scale partial differential equations using wavelets

open access: yes, 1998
Wavelets are a powerful new mathematical tool which offers the possibility to treat in a natural way quantities characterized by several length scales.
Beylkin   +10 more
core   +1 more source

The wavelet-NARMAX representation : a hybrid model structure combining polynomial models with multiresolution wavelet decompositions [PDF]

open access: yes, 2005
A new hybrid model structure combing polynomial models with multiresolution wavelet decompositions is introduced for nonlinear system identification.
Billings SA   +25 more
core   +2 more sources

ENO-wavelet transforms for piecewise smooth functions [PDF]

open access: yes, 2002
We have designed an adaptive essentially nonoscillatory (ENO)-wavelet transform for approximating discontinuous functions without oscillations near the discontinuities. Our approach is to apply the main idea from ENO schemes for numerical shock capturing
Chan, Tony F., Zhou, H. M.
core   +2 more sources

On the Analytic Wavelet Transform

open access: yes, 2010
An exact and general expression for the analytic wavelet transform of a real-valued signal is constructed, resolving the time-dependent effects of non-negligible amplitude and frequency modulation.
Lilly, Jonathan M., Olhede, Sofia C.
core   +1 more source

Refinement trajectory and determination of eigenstates by a wavelet based adaptive method [PDF]

open access: yes, 2006
The detail structure of the wave function is analyzed at various refinement levels using the methods of wavelet analysis. The eigenvalue problem of a model system is solved in granular Hilbert spaces, and the trajectory of the eigenstates is traced in ...
Nagy, Sz., Pipek, J.
core   +2 more sources

Analysis of Modulated Multivariate Oscillations

open access: yes, 2011
The concept of a common modulated oscillation spanning multiple time series is formalized, a method for the recovery of such a signal from potentially noisy observations is proposed, and the time-varying bias properties of the recovery method are derived.
Lilly, Jonathan M., Olhede, Sofia C.
core   +1 more source

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