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标题: Simulating Facial Expressions using [打印本页]

作者: 彬彬 时间: 2011-12-30 18:55
标题: Simulating Facial Expressions using
Abstract

An anatomically accurate biomechanical model of the human face

for simulating facial expressions is presented in this paper. The

equations governing large (nonlinear) deformations or finite

elasticity were solved using the Finite Element Method with

Hermite family cubic elements to obtain the deformed state of soft

tissue structures. Anatomically accurate 3D geometry of the

muscles were embedded in the FE continuum using grid-based

method. Facial movements were driven by an active contraction

model for skeletal muscles.

Keywords - facial animation, biomechanical model, active contraction

1 Introduction

As computational technologies advance, development of

animation techniques are moving away from pure geometric

techniques to physics-based techniques with anatomically accurate

topologies where facial movements are driven by contraction of

the underlying muscles.

2 Finite Element (FE) Model

3-dimensional models of facial structures were generated based on

digitisation of Visible Human male (VH) dataset [Ackerman et al.

1995]. Skin surface, skull and 13 mimetic muscles were

segmented. This constructed Finite Element (FE) model is based

on the Galerkin finite element formulation of the equations

governing finite elasticity, which is very common for solving large

deformation of biological soft tissues. The FE model is composed

of 218 elements and 508 nodes (Figure 1).

作者: 晃晃 时间: 2012-1-19 23:02
鉴于你今年的良好表现，新年将至，别人都在祝福你新年快乐，我觉得换一种新颖的方式祝福你，那就是：天天开心，事事顺利，雷打不动的祝福属于你！

作者: 晃晃 时间: 2012-2-24 23:18
呵呵，很漂亮啊

作者: 奇 时间: 2012-3-21 23:31
我来顶个

作者: 菜刀吻电线 时间: 2012-3-24 23:24
很经典，很实用，学习了!

作者: tc 时间: 2012-7-24 23:26
加精、加亮滴铁子，尤其要多丁页丁页

作者: 奇 时间: 2012-8-28 23:34
跑着去顶朋友滴铁

作者: 菜刀吻电线 时间: 2012-10-27 23:19
我就看看，我不说话

作者: tc 时间: 2012-12-15 23:25
不错哦,顶一下......

作者: 奇 时间: 2013-3-2 23:19
“再次路过……”我造一个-----特别路过

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