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    Modeling and Estimation of Energy-Based Hyperelastic Objects

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    Date
    2016
    Author
    Miguel, Eder
    Miraut, David
    Otaduy, Miguel A.
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    Abstract
    In 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.
    BibTeX
    @article {10.1111:cgf.12840,
    journal = {Computer Graphics Forum},
    title = {{Modeling and Estimation of Energy-Based Hyperelastic Objects}},
    author = {Miguel, Eder and Miraut, David and Otaduy, Miguel A.},
    year = {2016},
    publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/cgf.12840}
    }
    URI
    http://dx.doi.org/10.1111/cgf.12840
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    • 35-Issue 2
    • EG 2016 - Full Papers - CGF 35-Issue 2

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    Eurographics Association copyright © 2013 - 2020 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA