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Statements

Subject Item
n2:RIV%2F49777513%3A23520%2F12%3A43898935%21RIV13-MSM-23520___
rdf:type
n16:Vysledek skos:Concept
dcterms:description
This paper proposes a gradient domain deformation for wrapping surface models of muscles around bones as they move during a simulation of physiological activities. Each muscle is associated with one or more poly-lines that represent the muscle skeleton to which the surface model of the muscle is bound so that transformation of the skeleton (caused by the movement of bones) produces transformation of the vertices of the mesh subject to Laplacian linear constraints to preserve the local shape of the mesh and non-linear volume constraints to preserve the volume of the mesh. All these constraints form a system of equations that is solved using the iterative Gauss-Newton method with Lagrange multipliers. Our C++ implementation can wrap a muscle of medium size in about a couple of ms up to 400 ms on commodity hardware depending on the type of parallelization, whilst it can keep the change in volume below 0.04%. A preliminary biomechanical assessment of the proposed technique suggests that it can produce realistic results and thanks to its rapid processing speed, it might be an attractive alternative to the methods that are used in clinical practise at present. This paper proposes a gradient domain deformation for wrapping surface models of muscles around bones as they move during a simulation of physiological activities. Each muscle is associated with one or more poly-lines that represent the muscle skeleton to which the surface model of the muscle is bound so that transformation of the skeleton (caused by the movement of bones) produces transformation of the vertices of the mesh subject to Laplacian linear constraints to preserve the local shape of the mesh and non-linear volume constraints to preserve the volume of the mesh. All these constraints form a system of equations that is solved using the iterative Gauss-Newton method with Lagrange multipliers. Our C++ implementation can wrap a muscle of medium size in about a couple of ms up to 400 ms on commodity hardware depending on the type of parallelization, whilst it can keep the change in volume below 0.04%. A preliminary biomechanical assessment of the proposed technique suggests that it can produce realistic results and thanks to its rapid processing speed, it might be an attractive alternative to the methods that are used in clinical practise at present.
dcterms:title
Fast Deformation for Modelling of Musculoskeletal System Fast Deformation for Modelling of Musculoskeletal System
skos:prefLabel
Fast Deformation for Modelling of Musculoskeletal System Fast Deformation for Modelling of Musculoskeletal System
skos:notation
RIV/49777513:23520/12:43898935!RIV13-MSM-23520___
n16:predkladatel
n17:orjk%3A23520
n4:aktivita
n7:R
n4:aktivity
R
n4:dodaniDat
n14:2013
n4:domaciTvurceVysledku
n11:9374094 n11:2737566
n4:druhVysledku
n21:D
n4:duvernostUdaju
n13:S
n4:entitaPredkladatele
n10:predkladatel
n4:idSjednocenehoVysledku
136203
n4:idVysledku
RIV/49777513:23520/12:43898935
n4:jazykVysledku
n20:eng
n4:klicovaSlova
Muscle Modelling; Volume Preservation; Laplacian; Deformation
n4:klicoveSlovo
n5:Deformation n5:Volume%20Preservation n5:Muscle%20Modelling n5:Laplacian
n4:kontrolniKodProRIV
[31BA0716BBB4]
n4:mistoKonaniAkce
Řím
n4:mistoVydani
Setúbal
n4:nazevZdroje
GRAPP 2012: Proceedings of International Conference on Computer Graphics Theory and Applications
n4:obor
n12:JC
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n14:2012
n4:tvurceVysledku
Martelli, Saulo Kellnhofer, Petr Kohout, Josef
n4:typAkce
n19:WRD
n4:zahajeniAkce
2012-02-24+01:00
s:numberOfPages
10
n15:hasPublisher
SciTePress
n18:isbn
978-989-8565-02-0
n6:organizacniJednotka
23520