Interactive Cuts through 3-Dimensional Soft Tissue

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dc.contributor.authorBielser, Danielen_US
dc.contributor.authorMaiwald, Volker A.en_US
dc.contributor.authorGross, Markus H.en_US
dc.date.accessioned2015-02-16T06:55:33Z
dc.date.available2015-02-16T06:55:33Z
dc.date.issued1999en_US
dc.description.abstractWe 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.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume18en_US
dc.identifier.doi10.1111/1467-8659.00325en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages31-38en_US
dc.identifier.urihttps://doi.org/10.1111/1467-8659.00325en_US
dc.publisherBlackwell Publishers Ltd and the Eurographics Associationen_US
dc.titleInteractive Cuts through 3-Dimensional Soft Tissueen_US
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