Blendforces, a Dynamic Framework for Facial Animation
Computer Graphics Forum (Proceedings of Eurographics 2016).
Abstract
In this paper we present a new paradigm for the generation and retargeting of facial animation. Like a vast majority of the approaches that have adressed these topics, our formalism is built on blendshapes. However, where prior works have generally encoded facial geometry using a low dimensional basis of these blendshapes, we propose to encode facial dynamics by looking at blendshapes as a basis of forces rather than a basis of shapes. We develop this idea into a dynamic model that naturally combines the blendshapes paradigm with physics-based techniques for the simulation of deforming meshes. Because it escapes the linear span of the shape basis through time-integration and physics-inspired simulation, this approach has a wider expressive range than previous blendshape-based methods. Its inherent physically-based formulation also enables the simulation of more advanced physical interactions, such as collision responses on lip contacts.
Bibtex
@article{barrielle_blendforces_2016,
author = {Barrielle, Vincent and Stoiber, Nicolas and Cagniart, C\'edric},
title = { BlendForces: a Dynamic Framework for Facial animation},
journal = {Computer Graphics Forum (Proceedings of Eurographics 2016)},
volume = {35},
number = {2},
year = {2016},
publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
ISSN = {1467-8659},
DOI = {10.1111/cgf.12836},
}
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