1989
DOI: 10.1145/74334.74335
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Simulation of object and human skin formations in a grasping task

Abstract: This paper addresses the problem of simulating deformations between objects and the hand of a synthetic character during a grasping process. A numerical method based on finite element theory allows us to take into account the active forces of the fingers on the object and the reactive forces of the object on the fingers. The method improves control of synthetic human behavior in a task level animation system because it provides information about the environment of a synthetic human and so can be compared to th… Show more

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Cited by 149 publications
(85 citation statements)
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References 17 publications
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“…[38] studied the case of physically deformable NURBS surfaces for shape modeling. Finite elements [7,14,33,8] allow irregular meshes, which are generally more convenient to sample objects with arbitrary shapes, but may be poorly conditioned. The spatial domain is subdivided into elements such as triangles, hexahedra or more frequently tetrahedra, in which the displacement field is interpolated using shape functions.…”
Section: Related Workmentioning
confidence: 99%
“…[38] studied the case of physically deformable NURBS surfaces for shape modeling. Finite elements [7,14,33,8] allow irregular meshes, which are generally more convenient to sample objects with arbitrary shapes, but may be poorly conditioned. The spatial domain is subdivided into elements such as triangles, hexahedra or more frequently tetrahedra, in which the displacement field is interpolated using shape functions.…”
Section: Related Workmentioning
confidence: 99%
“…Mathematical deformable models. Analytical techniques to mathematically define non-linear, anisotropic and visco-elastic material properties [125][126][127][128][129][130]. However, these computations are very time consuming and are difficulty in interactively simulating.…”
Section: Classification Of Hard and Soft Tissuementioning
confidence: 99%
“…Rijpkema and Girard [60] created handshapes automatically based on the object being gripped. The Thalmanns [23,44] improved on the hand model to include much better skin models and deformations of the finger tips and the gripped object. Lee and Kunii [38] built a system that includes handshapes and simple pre-stored facial expressions for American Sign Language (ASL) synthesis.…”
Section: Literature On Gesture Animationmentioning
confidence: 99%