Search results for "Signal"
showing 10 items of 6924 documents
Filtrage physiquement admissible des images codées en polarisation moyennant un parcours fractal de Peano-Hilbert
2009
National audience
Filter array-based spectral imaging - design choices and practical realization
2014
International audience; This talk discusses the practical difficulties encountered in the practical implementation of MSFAs imaging systems in 2014. We provide hints and solutions on several problems. We provide means of evaluation and criticise them. Although, we present recent results obtain at the University of Bourgogne.
L'utilisation de la proxi-détection 3D pour la caractérisation du blé
2012
Arrhythmia due to mild therapeutic hypothermia - a study in vitro
2013
International audience; Introduction: In case of resuscitation after CA, the brain suffers the ischemia and the inflammation from reperfusion. To days, the only therapy available is the mild therapeutic hypothermia (MTH) : put the patient under 34°C-32°C during 12-24 hours. MTH has been shown to increase the hospital survival rate, but it has many adverse effects, among which the cardiac arrhythmia generation represents an important part (up to 34%). Cardiac culture in vitro provides a better spatial resolution than study in vivo, which could bring some insights of the mechanism of post-hypothermia arrhythmia generation. Method: Monolayer cardiac culture is prepared with cardiomyocytes from…
An open system to generate hyperspectral cubes for skin optical reflectance analysis
2010
International audience; Optical visible light analysis of the skin mainly relies on RGB colour imaging. Multispectral imaging of human skin represents a more accurate approach for in vivo analysis of its optical properties. Few dermatology-oriented multispectral devices have been hitherto developed. Their diagnostic abilities for pigmentary tumors or other clinical applications are still being evaluated [1]. We have developed a multispectral imaging system for in-vivo skin optical analysis. It is based on a charge-coupled device camera, a rotating wheel with a set of seven interference filters and a computer. All interference filters were chosen specifically to cover the visible spectrum ra…
Physical Processing of Polarization Images Noise Estimation of Polarization-Encoded Images by Peano-Hilbert Fractal Path
2009
Evaluation de l'outil SynDEx en vue de prototypage rapide d'applications de traitement d'images sur machine MIMD-DM
1997
International audience; The goal of this paper is to evaluate the SynDEx system-level CAD tool in order to estimate its usefulness for fast prototyping of image processing applications on a MIMD-DM architecture. This software can assist the programmer during the implementation of image processing applications in his constrained search for an efficient matching between algorithm and architecture. Two main conclusions were drawn from this work. First, the implementation of a connected component labeling algorithm on a multi-transputer architecture allowed us to quantify the gap between the estimated performances predicted by SynDEx and the effective performances measured on the generated exec…
Experimental study of arrhythmia due to mild therapeutic hypothermia after resuscitation of cardiac arrest
2013
International audience; Introduction: One of the important challenges after cardiac arrest (CA) is the neurological damage of the brain. In case of resuscitation after CA, the brain suffers the ischemia and the inflammation from reperfusion. To days, the only therapy available is the mild therapeutic hypothermia (MTH) : put the patient under 34°C-32°C during 12-24 hours. Even though that MTH has been shown to increase the hospital survival rate, it has many adverse effects, among which the cardiac arrhythmia generation represents an important part (up to 34%). Cardiac culture in vitro provides a better spatial resolution (to cellular level) than study in vivo, which could bring some insight…
The noise estimator NOLSE
2012
This report is not self-content and presents complementary definitions and demonstrations for the paper "Noise estimation from digital step-model signal" published inTransactions on Image Processing.