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Motion capture-driven simulations that hit and react (2002)
| Venue: | In SCA '02: Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation |
| Citations: | 122 - 13 self |
BibTeX
@INPROCEEDINGS{Zordan02motioncapture-driven,
author = {Victor B. Zordan and Jessica K. Hodgins},
title = {Motion capture-driven simulations that hit and react},
booktitle = {In SCA '02: Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation},
year = {2002},
pages = {89--96},
publisher = {ACM Press}
}
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Abstract
Controllable, reactive human motion is essential in many video games and training environments. Characters in these applications often perform tasks based on modified motion data, but response to unpredicted events is also important in order to maintain realism. We approach the problem of motion synthesis for interactive, hu-manlike characters by combining dynamic simulation and human motion capture data. Our control systems use trajectory tracking to follow motion capture data and a balance controller to keep the character upright while modifying sequences from a small motion library to accomplish specified tasks, such as throwing punches or swinging a racket. The system reacts to forces computed from a physical collision model by changing stiffness and damping terms. The freestanding, simulated humans respond automatically to im-pacts and smoothly return to tracking. We compare the resulting motion with video and recorded human data.
Keyphrases
motion capture-driven simulation trajectory tracking dynamic simulation human data control system many video game human motion capture data modified motion data motion synthesis reactive human motion motion capture data small motion library damping term unpredicted event physical collision model training environment hu-manlike character balance controller character upright
