Interactive Cuts through 3‐Dimensional Soft Tissue
Identifieur interne : 000C66 ( Istex/Curation ); précédent : 000C65; suivant : 000C67Interactive Cuts through 3‐Dimensional Soft Tissue
Auteurs : Daniel Bielser [Suisse] ; Volker A. Maiwald [Suisse] ; Markus H. Gross [Suisse]Source :
- Computer Graphics Forum [ 0167-7055 ] ; 1999-09.
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Abstract
We describe a physically based framework for interactive modeling and cutting of 3‐dimensional soft tissue that can be used for surgery simulation. Unlike existing approaches which are mostly designed for tensorproduct grids our methods operate on tetrahedral decompositions giving more topological and geometric flexibility for the efficient modeling of complex anatomical structures. We start from an initial tetrahedralization such as being provided by any conventional meshing method. In order to track topological changes tetrahedra intersected by the virtual scalpel are split into substructures whose connectivity follows the trajectory of the cut, which can be arbitrary. For the efficient computation of collisions between the scalpel and individual tetrahedra we devised a local collision detection algorithm. The underlying physics is approximated through masses and springs attached to each tetrahedral vertex and edge. A hierarchical Runge‐Kutta iteration computes the relaxation of the system by traversing the designed data structures in a breadth‐first order. The framework includes a force‐feedback interface and uses real‐time texture mapping to enhance the visual realism.
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DOI: 10.1111/1467-8659.00325
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ISTEX:B3C6647C40D8E228B2750D70AD2C3320940AE160Le document en format XML
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Maiwald</name><affiliation wicri:level="1"><mods:affiliation>Computer Science Department, ETH Zurich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Computer Science Department, ETH Zurich</wicri:regionArea></affiliation></author><author><name sortKey="Gross, Markus H" sort="Gross, Markus H" uniqKey="Gross M" first="Markus H." last="Gross">Markus H. Gross</name><affiliation wicri:level="1"><mods:affiliation>Computer Science Department, ETH Zurich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Computer Science Department, ETH Zurich</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:B3C6647C40D8E228B2750D70AD2C3320940AE160</idno><date when="1999" year="1999">1999</date><idno type="doi">10.1111/1467-8659.00325</idno><idno type="url">https://api.istex.fr/document/B3C6647C40D8E228B2750D70AD2C3320940AE160/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000C66</idno><idno type="wicri:Area/Istex/Curation">000C66</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Interactive Cuts through 3‐Dimensional Soft Tissue</title><author><name sortKey="Bielser, Daniel" sort="Bielser, Daniel" uniqKey="Bielser D" first="Daniel" last="Bielser">Daniel Bielser</name><affiliation wicri:level="1"><mods:affiliation>Computer Science Department, ETH Zurich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Computer Science Department, ETH Zurich</wicri:regionArea></affiliation></author><author><name sortKey="Maiwald, Volker A" sort="Maiwald, Volker A" uniqKey="Maiwald V" first="Volker A." last="Maiwald">Volker A. Maiwald</name><affiliation wicri:level="1"><mods:affiliation>Computer Science Department, ETH Zurich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Computer Science Department, ETH Zurich</wicri:regionArea></affiliation></author><author><name sortKey="Gross, Markus H" sort="Gross, Markus H" uniqKey="Gross M" first="Markus H." last="Gross">Markus H. Gross</name><affiliation wicri:level="1"><mods:affiliation>Computer Science Department, ETH Zurich, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Computer Science Department, ETH Zurich</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Computer Graphics Forum</title><idno type="ISSN">0167-7055</idno><idno type="eISSN">1467-8659</idno><imprint><publisher>Blackwell Publishers Ltd</publisher><pubPlace>Oxford, UK and Boston, USA</pubPlace><date type="published" when="1999-09">1999-09</date><biblScope unit="volume">18</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="31">31</biblScope><biblScope unit="page" to="38">38</biblScope></imprint><idno type="ISSN">0167-7055</idno></series><idno type="istex">B3C6647C40D8E228B2750D70AD2C3320940AE160</idno><idno type="DOI">10.1111/1467-8659.00325</idno><idno type="ArticleID">CGF325</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0167-7055</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Interactive Cut</term><term>Physically Based Modeling</term><term>Runge Kutta Method</term><term>Soft Tissue</term><term>Surgery Simulation</term><term>Tetrahedralization</term><term>Virtual Scalpel</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We describe a physically based framework for interactive modeling and cutting of 3‐dimensional soft tissue that can be used for surgery simulation. Unlike existing approaches which are mostly designed for tensorproduct grids our methods operate on tetrahedral decompositions giving more topological and geometric flexibility for the efficient modeling of complex anatomical structures. We start from an initial tetrahedralization such as being provided by any conventional meshing method. In order to track topological changes tetrahedra intersected by the virtual scalpel are split into substructures whose connectivity follows the trajectory of the cut, which can be arbitrary. For the efficient computation of collisions between the scalpel and individual tetrahedra we devised a local collision detection algorithm. The underlying physics is approximated through masses and springs attached to each tetrahedral vertex and edge. A hierarchical Runge‐Kutta iteration computes the relaxation of the system by traversing the designed data structures in a breadth‐first order. The framework includes a force‐feedback interface and uses real‐time texture mapping to enhance the visual realism.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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