Physical face cloning

摘要

A computer-implemented method is provided for physical face cloning to generate a synthetic skin. Rather than attempt to reproduce the mechanical properties of biological tissue, an output-oriented approach is utilized that models the synthetic skin as an elastic material with isotropic and homogeneous properties (e.g., silicone rubber). The method includes capturing a plurality of expressive poses from a human subject and generating a computational model based on one or more material parameters of a material. In one embodiment, the computational model is a compressible neo-Hookean material model configured to simulate deformation behavior of the synthetic skin. The method further includes optimizing a shape geometry of the synthetic skin based on the computational model and the captured expressive poses. An optimization process is provided that varies the thickness of the synthetic skin based on a minimization of an elastic energy with respect to rest state positions of the synthetic skin.

主权项

1. A computer-implemented method for generating an object shape, the method comprising:
determining a first target surface and a second target surface; generating, by operation of a computer processor, a surface geometry for a synthetic skin, the surface geometry having an outer surface and an inner surface, wherein the outer surface is generated based on the first target surface, wherein the inner surface is based on one or more thickness parameters representing a thickness distribution of the surface geometry, wherein the thickness parameters comprise one or more parameters indicating a material thickness of the synthetic skin at a given point; and modifying the inner surface based on a computational model such that the outer surface of the surface geometry more closely matches the second target surface when the surface geometry is deformed.