Modeling and Estimation of Energy-Based Hyperelastic Objects

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dc.contributor.authorMiguel, Ederen_US
dc.contributor.authorMiraut, Daviden_US
dc.contributor.authorOtaduy, Miguel A.en_US
dc.contributor.editorJoaquim Jorge and Ming Linen_US
dc.date.accessioned2016-04-26T08:38:46Z
dc.date.available2016-04-26T08:38:46Z
dc.date.issued2016en_US
dc.description.abstractIn this paper, we present a method to model hyperelasticity that is well suited for representing the nonlinearity of real-world objects, as well as for estimating it from deformation examples. Previous approaches suffer several limitations, such as lack of integrability of elastic forces, failure to enforce energy convexity, lack of robustness of parameter estimation, or difficulty to model cross-modal effects. Our method avoids these problems by relying on a general energy-based definition of elastic properties. The accuracy of the resulting elastic model is maximized by defining an additive model of separable energy terms, which allow progressive parameter estimation. In addition, our method supports efficient modeling of extreme nonlinearities thanks to energy-limiting constraints. We combine our energy-based model with an optimization method to estimate model parameters from force-deformation examples, and we show successful modeling of diverse deformable objects, including cloth, human finger skin, and internal human anatomy in a medical imaging application.en_US
dc.description.number2en_US
dc.description.sectionheadersDeformable & Soft Objectsen_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume35en_US
dc.identifier.doi10.1111/cgf.12840en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages385-396en_US
dc.identifier.urihttps://doi.org/10.1111/cgf.12840en_US
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectAnimationen_US
dc.titleModeling and Estimation of Energy-Based Hyperelastic Objectsen_US
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