We present a methodology of accurately reconstructing the
deformation and surface characteristics of a scanned 3D model recorded
in real-time within a Finite Element Model (FEM) simulation. Based on
a sequence of generated surface deformations defining a reference animation,
we illustrate the ability to accurately replicate the deformation
behavior of an object composed of an unknown homogeneous elastic
material. We then formulate the procedural generation of the internal
geometric structure and material parameterization required to achieve
the recorded deformation behavior as a non-linear optimization problem.
In this formulation the geometric distribution (quality) and density
of tetrahedral components are simultaneously optimized with the elastic
material parameters (Young's Modulus and Possion's ratio) of a procedurally
generated FEM model to provide the optimal deformation behavior
with respect to the recorded surface.
S. Transue and M. Choi, "Deformable Object Behavior Reconstruction Derived through Simultaneous Geometric and Material Property Estimation", International Symposium on Visual Computing (ISCV) 2015.
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