08:00 Registration 08:45 I. Magnin, T. Katila Introduction 09:00 Invited Speaker Pr. T. Arts Modules in cardiac modeling: mechanics, circulation and depolarization wave. Session 1: Anatomical Modeling 10:00 J.-L. Mari et al. Geometrical Modeling of the Heart and its Main Vessels 10:30 H. Veistera et al. Reconstructing 3D Boundary Element Heart Models from 2D Biplane Fluoroscopy 11:00 Break 11:3...

In this paper, we design tapers for the periodogram in the case of nonuniformly sampled data. We consider both data independent and data dependent taper designs. In the data independent design case, we derive tapers by minimizing either the integrated sidelobe level or the peak sidelobe level of the spectral window. In the data dependent case, we extend the design by allowing the tapers to be c...

Recently, an algorithm for merging counter-based data summaries which are the output of the Frequent algorithm (Frequent summaries) has been proposed by Agarwal et al. In this paper, we present a new algorithm for merging Frequent summaries. Our algorithm is fast and simple to implement, and retains the same computational complexity of the algorithm presented by Agarwal et al. while providing b...

We present Chandra observations of 18 spectroscopically selected quasars, already known to be X-ray weak from previous ROSAT observations. All the sources but one are detected by Chandra, and spectral analysis suggests that most of them are intrinsically underluminous in the X-rays (by a factor from 3 to > 100). These objects could represent a large population of quasars with a Spectral Energy ...

This paper presents an adaptive peak frequency estimation method using a database that stores PARCOR coefficients as key attributes and the corresponding peak frequencies as nonkey attributes. The least-square lattice algorithm is used to recursively estimate the PARCOR coefficients to adapt to changing circumstances. The nearest neighbor to the current PARCOR coefficient is retrieved from the ...

In this talk I will discuss a method to prove the absence of critical points for the Helmholtz equation in 3D. The key element of the approach is the use of multiple frequencies in a fixed range, and the proof is based on the spectral analysis of the associated problem. This question is strictly connected with the Radó-Kneser-Choquet theorem, whose direct extension to the Helmholtz equation or ...

Fundamental frequency estimation of monophonic acoustic signals is a very rich and active field of research. Similarly to a lot of signal processing techniques, fundamental estimation was first developped for, and applied to speech signals. One can literally find hundreds of methods in [Hess83]. It is also interesting to note that [Rabiner76], and [deCheveigné01] made an attempt to compare diff...

We investigate the eigenvalue spectrum of the one-dimensional laminar premixed flame in a reactive mixture described by detailed mass-action kinetics. All the physical scales, spatial and temporal, inherent in a reacting system are accurately identified via eigenvalue analysis. The interplay between chemistry and transport is addressed via conducting a spectral analysis of the reactive flow str...