Composition of Complex Optimal Multi-Character Motions

Liu, C. Karen; Hertzmann, Aaron; Popovic, Zoran

Composition of Complex Optimal Multi-Character Motions

Files

215-222.pdf (620.7 KB)

Date

2006

Authors

Liu, C. Karen
Hertzmann, Aaron
Popovic, Zoran

Publisher

The Eurographics Association

Abstract

This paper presents a physics-based method for creating complex multi-character motions from short singlecharacter sequences. We represent multi-character motion synthesis as a spacetime optimization problem where constraints represent the desired character interactions. We extend standard spacetime optimization with a novel timewarp parameterization in order to jointly optimize the motion and the interaction constraints. In addition, we present an optimization algorithm based on block coordinate descent and continuations that can be used to solve large problems multiple characters usually generate. This framework allows us to synthesize multi-character motion drastically different from the input motion. Consequently, a small set of input motion dataset is sufficient to express a wide variety of multi-character motions.

        @inproceedings{:10.2312/SCA/SCA06/215-222
,
booktitle = {ACM SIGGRAPH / Eurographics Symposium on Computer Animation
},
editor = {Marie-Paule Cani and James O'Brien
},
title = {{Composition of Complex Optimal Multi-Character Motions
}},
author = {Liu, C. Karen and 
Hertzmann, Aaron and 
Popovic, Zoran
},
year = {2006
},
publisher = {The Eurographics Association
},
ISSN = {1727-5288
},
ISBN = {3-905673-34-7
},
DOI = {/10.2312/SCA/SCA06/215-222
}
}