Academic Journal
Accurate interactive animation of deformable models at arbitrary resolution
| العنوان: | Accurate interactive animation of deformable models at arbitrary resolution |
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| المؤلفون: | Nesme, Matthieu, Faure, François, Payan, Yohan |
| المساهمون: | Virtual environments for animation and image synthesis of natural objects (EVASION), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire Jean Kuntzmann (LJK), Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre Mendès France - Grenoble 2 (UPMF)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Centre National de la Recherche Scientifique (CNRS), Gestes Medico-chirurgicaux Assistés par Ordinateur (TIMC-IMAG-GMCAO), Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 (TIMC-IMAG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 0219-4678 ; International Journal of Image and Graphics ; https://inria.hal.science/inria-00443064 ; International Journal of Image and Graphics, 2010, 10 (2), pp.175-202. ⟨10.1142/S021946781000372X⟩. |
| بيانات النشر: | CCSD World Scientific Publishing |
| سنة النشر: | 2010 |
| المجموعة: | Université Grenoble Alpes: HAL |
| مصطلحات موضوعية: | interactive simulation, soft bodies, physically based animation, finite elements, surgical simulator, patient-specific meshing, ACM: I.: Computing Methodologies/I.6: SIMULATION AND MODELING/I.6.3: Applications, ACM: I.: Computing Methodologies/I.3: COMPUTER GRAPHICS/I.3.7: Three-Dimensional Graphics and Realism/I.3.7.0: Animation, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR] |
| الوصف: | International audience ; Providing realistic interactive simulation requires a powerful animation method with a highly detailed rendering. Based on continuum mechanics, the finite element method needs a volumetric represen- tation of the object to animate. This paper proposes an automatic method for building meshes that are well adapted to interactive simulation starting from miscellaneous input data. Contrary to commonly used methods based on tetrahedral volume meshing, the object is embedded in a regular grid of deformable hexahedra at an arbitrary resolution. This alleviates the complexities and limitations of tetrahedra and results in regular, well-conditioned meshes. Mass and stiffness are set in order to model the physical properties as accurately as possible at any given resolution, in a manner that takes into account the distribution of material within the hexahedra. This allows us to accurately model the mechanical properties of the partially empty boundary hexahedra, and thus enables us to perform fast simulation at a coarse resolution. The accuracy of this approach is compared to theoretical results. In addition, we extend a fast and robust co-rotational approach to the case of hexahedral elements. This permits simulation of arbitrarily complex shapes at interactive rates. We show how to build the hexahedra directly from surfaces and from segmented scanned data, which is very useful to animate complex artistic models or patient specific models for individual medical simulation. Finally, we show how a fast volumetric rendering can make efficient use of the grid structure. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1142/S021946781000372X |
| الاتاحة: | https://inria.hal.science/inria-00443064 https://inria.hal.science/inria-00443064v1/document https://inria.hal.science/inria-00443064v1/file/Nesme_Int_Journ_Image_Graph_09.pdf https://doi.org/10.1142/S021946781000372X |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.7B197040 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1142/S021946781000372X |
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