Matthias TeschnerPh.D., National Biocomputation
Center, Stanford University “Direct Computation of Nonlinear Soft-Tissue Deformation
in Craniofacial Surgery Simulation” An
optimization approach for computing nonlinear soft-tissue deformation
due to external forces is introduced. Deformation techniques based on
mass-spring models commonly simulate the dynamic behavior of the system
due to external forces. In contrast
to these methods the introduced static approach directly estimates the
resulting stable equilibrium employing an optimization method. The optimization
approach is robust and very efficient with regard to computational costs. Software
Demonstration: The
approach to soft-tissue deformation is part of an integrated system
for craniofacial surgery simulation. The system is based on a patient's
bone model and a photo realistic surface scan of a patient's face. The
system can be used to simulate bone cutting and bone realigning with
interactive collision detection. It predicts the resulting soft-tissue
changes.
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