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Authors: I. Rodríguez 1 and R. Boulic 2

Affiliations: 1 University of Barcelona, Spain ; 2 Virtual Reality Lab., Ecole Polytechnique Fédérale de Lausanne, Switzerland

Keyword(s): Virtual human poses, active muscle torque, passive resistive torque.

Related Ontology Subjects/Areas/Topics: Animation Algorithms and Techniques ; Animation and Simulation ; Animation Systems ; Computer Vision, Visualization and Computer Graphics ; Human Figure Animation

Abstract: In this paper we propose a hybrid approach minimizing the active torque produced by muscles groups at the joint level. The proposed approach is hybrid in the sense that it combines the local knowledge of the external torque induced by external forces such as gravity and exerted force, and the full knowledge of the passive-resistive torque characteristics due to ligaments and connective tissues. The algorithm is exploited within a context of posture adjustment when a muscle group reaches a critical fatigue level. It proposes a target joint state that can be characterized as active or passive. The active solution, if it exists, can be further characterized by a desired degree of active torque amplitude reduction (between 0 and 100%). In any cases at least one passive solution exists; it relies on the passive/resistive torque appearing in the neighbourhood of the joint limits.

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Paper citation in several formats:
Rodríguez, I. and Boulic, R. (2007). SIMULATING REACTIVE/PASSIVE POSTURES BY MEANS OF A HUMAN ACTIVE TORQUE HYBRID MINIMIZATION. In Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 1: GRAPP; ISBN 978-972-8865-72-6; ISSN 2184-4321, SciTePress, pages 5-12. DOI: 10.5220/0002075700050012

@conference{grapp07,
author={I. Rodríguez. and R. Boulic.},
title={SIMULATING REACTIVE/PASSIVE POSTURES BY MEANS OF A HUMAN ACTIVE TORQUE HYBRID MINIMIZATION},
booktitle={Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 1: GRAPP},
year={2007},
pages={5-12},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002075700050012},
isbn={978-972-8865-72-6},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the Second International Conference on Computer Graphics Theory and Applications (VISIGRAPP 2007) - Volume 1: GRAPP
TI - SIMULATING REACTIVE/PASSIVE POSTURES BY MEANS OF A HUMAN ACTIVE TORQUE HYBRID MINIMIZATION
SN - 978-972-8865-72-6
IS - 2184-4321
AU - Rodríguez, I.
AU - Boulic, R.
PY - 2007
SP - 5
EP - 12
DO - 10.5220/0002075700050012
PB - SciTePress

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