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Accueil du site > Équipes > Équipe 1 : Méthodes de caractérisation et d’imagerie ultrasonore multi-echelle : modélisation et transfert > Thèmes de recherche > Prise en compte des incertitudes dans les modèles de propagation ultrasonore.

Prise en compte des incertitudes dans les modèles de propagation ultrasonore.

Contact : Quentin Grimal.

This research topic aims at developing a methodology to account for uncertainties in ultrasound propagation models and biomechanical models. We consider both uncertainties on geometry (shape, dimension and thickness of bones) and material properties (density, elasticity). Uncertainties are accounted for using probabilistic descriptions of the acoustical or mechanical problems. A probabilistic law is associated to each uncertain parameter, which describes its fluctuations around a mean value. The responses of the stochastic models are investigated by means of Monte-Carlo simulations. The stochastic models are useful (i) to analyse the sensitivity of the response to the various parameters ; (ii) to formulate robust inverse problems.