Three-Dimensional Modeling of Heart Soft Tissue Motion

The modeling and simulation of biological tissue is the core part a virtual surgery system. In this study, geometric physical methods related to soft were investigated. Regarding modeling, problem repeated inverse calculations control points in Bezier method was solved via re-parameterization, which improved calculation speed. base surface superposition based on prior information proposed make deformation model not only have advantages but also ability fit local irregular surfaces. fitting particle spring anisotropy by optimizing topological structure model. Then, had more extensive nonlinear through dynamic elastic coefficient parameter. Finally, secondary body enabled creep relaxation characteristics according elongation spring.