An interactive model of the human liver
Identifieur interne : 008142 ( Main/Merge ); précédent : 008141; suivant : 008143An interactive model of the human liver
Auteurs : F. Boux De Casson [France] ; D. D'Aulignac [France] ; C. Laugier [France]Source :
- Lecture notes in control and information sciences [ 0170-8643 ] ; 2001.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
Abstract
In the aim of building a surgical simulator we have developed a model of the human liver. The model respects both the heterogeneous (different material properties depending on the tissue) and non-linear nature of the organ, using binary connectors. We validate that the local behavior of the connector is accurately reproduced on a global scale. Interaction, including collision detection and response, is possible in real-time using a haptic device. For smoother force feedback we introduce a local modeling technique that approximates forces at high frequency. Further we describe a fast method that allows real-time changes of the topology by avoiding subdivision. Finally we illustrate all these techniques by several experimental results.
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Pascal:01-0421974Le document en format XML
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<term>Feedback</term>
<term>Feedback regulation</term>
<term>Force</term>
<term>Heterogeneity</term>
<term>High frequency</term>
<term>Human</term>
<term>Interaction</term>
<term>Modeling</term>
<term>Non linear effect</term>
<term>Organ</term>
<term>Properties of materials</term>
<term>Real time</term>
<term>Response time</term>
<term>Simulator</term>
<term>Surgery</term>
<term>Tactile sensitivity</term>
<term>Time response</term>
<term>Tissue</term>
<term>Topology</term>
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<term>Hétérogénéité</term>
<term>Propriété matériau</term>
<term>Réponse temporelle</term>
<term>Force</term>
<term>Modélisation</term>
<term>Chirurgie</term>
<term>Simulateur</term>
<term>Tissu</term>
<term>Effet non linéaire</term>
<term>Connexion électrique</term>
<term>Interaction</term>
<term>Temps réponse</term>
<term>Temps réel</term>
<term>Sensibilité tactile</term>
<term>Rétroaction</term>
<term>Boucle réaction</term>
<term>Haute fréquence</term>
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<front><div type="abstract" xml:lang="en">In the aim of building a surgical simulator we have developed a model of the human liver. The model respects both the heterogeneous (different material properties depending on the tissue) and non-linear nature of the organ, using binary connectors. We validate that the local behavior of the connector is accurately reproduced on a global scale. Interaction, including collision detection and response, is possible in real-time using a haptic device. For smoother force feedback we introduce a local modeling technique that approximates forces at high frequency. Further we describe a fast method that allows real-time changes of the topology by avoiding subdivision. Finally we illustrate all these techniques by several experimental results.</div>
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