filename     : Bic09.pdf
entry        : inproceedings
conference   : SIGGRAPH 2009, New Orleans, USA, August 3-7, 2009
pages        : 89:1 - 89:9
year         : 2009
month        : August
title        : Capture and Modeling of Non-Linear Heterogeneous Soft Tissue
subtitle     :
author       : Bernd Bickel and Moritz Baecher and Miguel A. Otaduy and Wojciech Matusik and Hanspeter Pfister and Markus Gross
booktitle    : SIGGRAPH '09: ACM SIGGRAPH 2009 papers
location     : New Orleans, Louisiana, USA
ISSN/ISBN    : 
editor       : 
publisher    : ACM Press / ACM SIGGRAPH
publ.place   : New York, NY, USA
volume       : 28
issue        : 3
language     : english
keywords     : physically based animation and modeling, model acquisition, deformations, data-driven graphics
abstract     : This paper introduces a data-driven representation and modeling
technique for simulating non-linear heterogeneous soft tissue. It
simplifies the construction of convincing deformable models by
avoiding complex selection and tuning of physical material parameters,
yet retaining the richness of non-linear heterogeneous behavior.
We acquire a set of example deformations of a real object,
and represent each of them as a spatially varying stress-strain relationship
in a finite-element model. We then model the material
by non-linear interpolation of these stress-strain relationships in
strain-space. Our method relies on a simple-to-build capture system
and an efficient run-time simulation algorithm based on incremental
loading, making it suitable for interactive computer graphics
applications. We present the results of our approach for several nonlinear
materials and biological soft tissue, with accurate agreement
of our model to the measured data.