Publications related to MATHICSE Technical Report : Analytic regularity and collocation approximation for PDEs with random domain deformations

On the estimation of lightning peak currents from measured fields using lightning location systems

Although, due to the high variability of key parameters such as the return-stroke speed, it is impossible to determine the lightning current accurately from the remotely measured electric or magnetic field for a given event, we show in this paper that, for ...

2004

Geometric Alignment and Chromatic Calibration of Serial Radiographic Images

Philippe Thévenaz

Objective—To develop software for automated registration and intensity calibration of serial dental radiographs for the analysis of longitudinal changes in bone density. Methods—Serial dental radiographs were acquired using a positioning device designed to ...

The British Institute of Radiology2004

Design and Validation of a Tool for Neurite Tracing and Analysis in Fluorescence Microscopy Images

Michaël Unser, Pascal Steiner, Mathews Jacob

Background: For the investigation of the molecular mechanisms involved in neurite outgrowth and differentiation, accurate and reproducible segmentation and quantification of neuronal processes are a prerequisite. To facilitate this task, we developed a sem ...

Wiley $ InterScience ^{ ® } $2004

Conditional Gaussian Mixtures

I show how conditional Gaussians, whose means are conditioned by a random variable, can be estimated and their likelihoods computed. This is based upon how regular Gaussians have their own parameters and likelihood computed. After explaining how to estimat ...

IDIAP2003

Measurement of stand-sit and sit-stand transitions using a miniature gyroscope and its application in fall risk evaluation in the elderly

Kamiar Aminian, Philippe Robert, Bijan Najafi

A new method of evaluating the characteristics of postural transition (PT) and their correlation with falling risk in elderly people is described. The time of sit-to-stand and stand-to-sit transitions and their duration were measured using a miniature gyro ...

2002

The standard deviation in fluorescence correlation spectroscopy

Horst Vogel

The std. deviation (SD) in fluorescence correlation spectroscopy (FCS) has been mostly neglected in applications. However, the knowledge of the correct SD is necessary for an accurate data evaluation, esp. when fitting theor. models to exptl. data. In this ...

2001

Assembly and method for a correlator structure

Horst Vogel

The invention concerns an assembly comprising: (a) means for determining the intensity of a plurality of electromagnetic signals, (b) a correlator for correlating or autocorrelating said signals, (c) means for continuously calculating the variance and/or t ...

2001

Rate Distortion Behavior of Sparse Sources

Martin Vetterli

This paper studies the rate distortion behavior of sparse memoryless sources that serve as models of sparse signal representations. For the Hamming distortion criterion,

R(D)

is shown to be essentially linear. For the mean squared error measure, two mode ...

2001

On Monin-Obukhov similarity in the stable atmospheric boudary layer

Fernando Porté Agel, Marc Parlange

Atmospheric measurements from several field experiments have been combined to develop a better understanding of the turbulence structure of the stable atmospheric boundary layer. Fast response wind velocity and temperature data have been recorded using 3-d ...

2001

An ultradense polymorph of rutile with seven-coordinated titanium from the Ries crater

Philippe Gillet

We report the discovery of an ultradense post-rutile polymorph of titanium dioxide in shocked gneisses of the Ries crater in Germany. The microscopic diagnostic feature is intense blue internal reflections in crossed polarizers in reflected light. X-ray di ...

2001

MATHICSE Technical Report : Analytic regularity and collocation approximation for PDEs with random domain deformations

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On the estimation of lightning peak currents from measured fields using lightning location systems

Geometric Alignment and Chromatic Calibration of Serial Radiographic Images

Design and Validation of a Tool for Neurite Tracing and Analysis in Fluorescence Microscopy Images

Conditional Gaussian Mixtures

Measurement of stand-sit and sit-stand transitions using a miniature gyroscope and its application in fall risk evaluation in the elderly

The standard deviation in fluorescence correlation spectroscopy

Assembly and method for a correlator structure

Rate Distortion Behavior of Sparse Sources

On Monin-Obukhov similarity in the stable atmospheric boudary layer

An ultradense polymorph of rutile with seven-coordinated titanium from the Ries crater

On the estimation of lightning peak currents from measured fields using lightning location systems

Conditional Gaussian Mixtures

Geometric Alignment and Chromatic Calibration of Serial Radiographic Images

Measurement of stand-sit and sit-stand transitions using a miniature gyroscope and its application in fall risk evaluation in the elderly

On Monin-Obukhov similarity in the stable atmospheric boudary layer

Assembly and method for a correlator structure

An ultradense polymorph of rutile with seven-coordinated titanium from the Ries crater

Design and Validation of a Tool for Neurite Tracing and Analysis in Fluorescence Microscopy Images

The standard deviation in fluorescence correlation spectroscopy

Rate Distortion Behavior of Sparse Sources