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Authors: Jana Hájková and Josef Kohout

Affiliation: University of West Bohemia, Czech Republic

ISBN: 978-989-8565-46-4

Keyword(s): Deformation, Muscle Modelling, Interpolation, Musculoskeletal Model, Action Line, Mesh Skinning.

Related Ontology Subjects/Areas/Topics: Animation and Simulation ; Computer Vision, Visualization and Computer Graphics ; Geometry and Modeling ; Human Figure Animation ; Surface Modeling

Abstract: In this paper we present an interpolation method that was derived from the muscle deformation algorithm computed on the gradient domain deformation technique. The method uses linear constraints to preserve the local shape of the muscle and the non-linear volume constraints to preserve the volume of the mesh. The Gauss-Newton method with Lagrange multipliers is used as the main computation algorithm and the inter-polation approach serves especially to smooth up deformation steps. Thanks to the interpolation of main bones movement positions by several temporally interpositions, the large distances are optimized and the muscles of the musculoskeletal model are deformed in a more realistic way. The method was implemented in C++ language, using VTK framework and was integrated into the human body framework. Despite the fact that the current implementation is not optimised, all muscles tested were processed in a few minutes on commodity hardware, which is much faster in comparison with the traditional FEM approaches. (More)

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Paper citation in several formats:
Hájková, J. and Kohout, J. (2013). Musculoskeletal System Modelling - Interpolation Method for Muscle Deformation.In Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2013) ISBN 978-989-8565-46-4, pages 73-78. DOI: 10.5220/0004214500730078

@conference{grapp13,
author={Jana Hájková. and Josef Kohout.},
title={Musculoskeletal System Modelling - Interpolation Method for Muscle Deformation},
booktitle={Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2013)},
year={2013},
pages={73-78},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004214500730078},
isbn={978-989-8565-46-4},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2013)
TI - Musculoskeletal System Modelling - Interpolation Method for Muscle Deformation
SN - 978-989-8565-46-4
AU - Hájková, J.
AU - Kohout, J.
PY - 2013
SP - 73
EP - 78
DO - 10.5220/0004214500730078

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