HapticV1, Main, Merge, bibRecord, 006909

Real-time topology modification for finite element models with haptic feedback

Identifieur interne : 006909 ( Main/Merge ); précédent : 006908; suivant : 006910

Real-time topology modification for finite element models with haptic feedback

Auteurs : Dan C. Popescu [Australie] ; Bhautik Joshi [Australie] ; Sébastien Ourselin [Australie]

Source :

Lecture notes in computer science [ 0302-9743 ] ; 2005.

RBID : Pascal:05-0446773

Descripteurs français

Pascal (Inist)
- Traitement image, Analyse forme, Analyse image, Temps réel, Topologie, Simulateur, Temps réponse, Sensibilité tactile, Forme tétraédrique, Inversion, Chirurgie, Réponse temporelle, Méthode élément fini, Modélisation, Modèle linéaire, Calcul matriciel.
Wicri :
- topic : Chirurgie.

English descriptors

KwdEn :
- Finite element method, Image analysis, Image processing, Inversion, Linear model, Matrix calculus, Modeling, Pattern analysis, Real time, Response time, Simulator, Surgery, Tactile sensitivity, Tetrahedral shape, Time response, Topology.

Abstract

We propose a real-time procedure for performing topology modifications on finite element models of objects with linear elastic behaviour. For a 3D tetrahedral model, it requires the inversion of a 6 x 6 matrix and the weighted multiplication of a thin matrix with its transpose. We exemplify with an implementation in our surgical simulator, where we impose the tight computational constraints of haptic feedback. Our experimental results show that we can obtain response times of under one second for objects represented by tetrahedral meshes with more than 2000 nodes.

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to stream PascalFrancis, to step Corpus: 000E50
to stream PascalFrancis, to step Curation: 000658
to stream PascalFrancis, to step Checkpoint: 000A99

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Pascal:05-0446773

Le document en format XML

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<term>Linear model</term>
<term>Matrix calculus</term>
<term>Modeling</term>
<term>Pattern analysis</term>
<term>Real time</term>
<term>Response time</term>
<term>Simulator</term>
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<term>Tactile sensitivity</term>
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<term>Analyse image</term>
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<term>Simulateur</term>
<term>Temps réponse</term>
<term>Sensibilité tactile</term>
<term>Forme tétraédrique</term>
<term>Inversion</term>
<term>Chirurgie</term>
<term>Réponse temporelle</term>
<term>Méthode élément fini</term>
<term>Modélisation</term>
<term>Modèle linéaire</term>
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<front><div type="abstract" xml:lang="en">We propose a real-time procedure for performing topology modifications on finite element models of objects with linear elastic behaviour. For a 3D tetrahedral model, it requires the inversion of a 6 x 6 matrix and the weighted multiplication of a thin matrix with its transpose. We exemplify with an implementation in our surgical simulator, where we impose the tight computational constraints of haptic feedback. Our experimental results show that we can obtain response times of under one second for objects represented by tetrahedral meshes with more than 2000 nodes.</div>
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<name sortKey="Joshi, Bhautik" sort="Joshi, Bhautik" uniqKey="Joshi B" first="Bhautik" last="Joshi">Bhautik Joshi</name>
<name sortKey="Ourselin, Sebastien" sort="Ourselin, Sebastien" uniqKey="Ourselin S" first="Sébastien" last="Ourselin">Sébastien Ourselin</name>
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   |wiki=    Ticri/CIDE
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   |texte=   Real-time topology modification for finite element models with haptic feedback
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Real-time topology modification for finite element models with haptic feedback

Real-time topology modification for finite element models with haptic feedback

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri