Haptic and visual simulation of bone dissection

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dc.contributor.advisorPicasso, Bruno
dc.contributor.advisorZanetti, Gianluigi
dc.contributor.advisorGobbetti, Enrico
dc.contributor.authorAgus, Marco
dc.date.accessioned2014-04-09T10:19:24Z
dc.date.available2014-04-09T10:19:24Z
dc.date.issued2004-03
dc.descriptionTesi di dottorato: Università degli Studi di Cagliari, Facoltà di Ingegneria, Dipartiemnto di Ingegneria Meccanica, XV Ciclo di Dottorato in Progettazione Meccanica.IT
dc.description.abstractIn bone dissection virtual simulation, force restitution represents the key to realistically mimicking a patient--specific operating environment. The force is rendered using haptic devices controlled by parametrized mathematical models that represent the bone--burr contact. This dissertation presents and discusses a haptic simulation of a bone cutting burr, that it is being developed as a component of a training system for temporal bone surgery. A physically based model was used to describe the burr--bone interaction, including haptic forces evaluation, bone erosion process and resulting debris. The model was experimentally validated and calibrated by employing a custom experimental set--up consisting of a force--controlled robot arm holding a high--speed rotating tool and a contact force measuring apparatus. Psychophysical testing was also carried out to assess individual reaction to the haptic environment. The results suggest that the simulator is capable of rendering the basic material differences required for bone burring tasks. The current implementation, directly operating on a voxel discretization of patient-specific 3D CT and MR imaging data, is efficient enough to provide real--time haptic and visual feedback on a low--end multi--processing PC platformIT
dc.description.statusIneditoIT
dc.identifier.urihttp://hdl.handle.net/11050/784
dc.language.isoenIT
dc.subjectbone dissectionIT
dc.subject3D visualizationIT
dc.subjectbone surgeryIT
dc.subjectmastoidectomyIT
dc.subject.een-cordisEEN CORDIS::ELETTRONICA, INFORMATICA E TELECOMUNICAZIONI::Multimedia::Visualizzazione, realtà virtualeIT
dc.subject.een-cordisEEN CORDIS::ELETTRONICA, INFORMATICA E TELECOMUNICAZIONI::IT e applicazioni telematiche::Applicazioni per la saluteIT
dc.subject.programProgram::Data Fusion::Visual Computing (VIC)IT
dc.titleHaptic and visual simulation of bone dissectionIT
dc.typeTesiIT
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