Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Virtual human bone modelling by interactive sculpting, mesh morphing and force-feedback
Abstract The paper deals with an investigation on the role of interactive sculpting and radial basis function (RBF) mesh morphing in the field of biomechanical computer-aided simulations. In this context, mesh morphing can be effectively used in predictive medicine workflows where a patient-specific numerical model is taken as reference to understand the physics of interest by means of simulation-driven techniques. The proposed methodology is intended for addressing the interactive geometry modification in combination with a force-feedback device and it is applied to anatomical structures. The concept is demonstrated showing a fast remodelling workflow of the human femur. The interactive process allows to steer the morphing of a template FEA model onto the patient geometry by positioning a set of landmark points. A first morphing action allows to warp the solid model according to the RBF deformation field produced by landmarks, a final projection on the target surface is performed to complete the task. The approach proven to be quick, effective and ergonomic thanks to the haptic device and the high level of interactivity. New patient specific CAE models are generated in a very short time preserving the very good quality of the computational mesh.
Virtual human bone modelling by interactive sculpting, mesh morphing and force-feedback
Abstract The paper deals with an investigation on the role of interactive sculpting and radial basis function (RBF) mesh morphing in the field of biomechanical computer-aided simulations. In this context, mesh morphing can be effectively used in predictive medicine workflows where a patient-specific numerical model is taken as reference to understand the physics of interest by means of simulation-driven techniques. The proposed methodology is intended for addressing the interactive geometry modification in combination with a force-feedback device and it is applied to anatomical structures. The concept is demonstrated showing a fast remodelling workflow of the human femur. The interactive process allows to steer the morphing of a template FEA model onto the patient geometry by positioning a set of landmark points. A first morphing action allows to warp the solid model according to the RBF deformation field produced by landmarks, a final projection on the target surface is performed to complete the task. The approach proven to be quick, effective and ergonomic thanks to the haptic device and the high level of interactivity. New patient specific CAE models are generated in a very short time preserving the very good quality of the computational mesh.
Virtual human bone modelling by interactive sculpting, mesh morphing and force-feedback
Biancolini, Marco Evangelos (Autor:in) / Valentini, Pier Paolo (Autor:in)
06.06.2018
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Mesh morphing , Radial basis functions , Interactive modelling , Force-feedback , Biomechanics , Virtual prototyping Engineering , Engineering, general , Engineering Design , Mechanical Engineering , Computer-Aided Engineering (CAD, CAE) and Design , Electronics and Microelectronics, Instrumentation , Industrial Design
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