Realistic haptic rendering for highly deformable virtual objects

Author

Mendoza, C.A. ; Laugier, C.

Author_Institution

INRIA, Rhone-Alpes, France

fYear

2001

fDate

17-17 March 2001

Firstpage

264

Lastpage

269

Abstract

Previous works have presented solutions for stability problems arising from the difference between the sampling rate requirements for haptic devices (about 1 kHz) and the update rates of the physical objects being simulated (about 10 Hz). These methods work well when the objects are convex and non-deformable but, when the object is deformable, these methods might fail in obtaining realistic force feedback and exact graphical rendering. The reason of this is due to the concavities and unknown shapes that may appear in the deformable objects. This paper proposes to perform haptic interaction with the local topology of the object, taking into account the unknown changes and the concavities in the object shape. This local model is updated at the simulation frequency rate.

Keywords

deformation; digital simulation; force feedback; haptic interfaces; real-time systems; realistic images; rendering (computer graphics); topology; virtual reality; concavities; deformable virtual objects; graphical rendering; haptic devices; haptic interaction; haptic rendering; local model updating; local topology; object update rates; real-time virtual reality; realistic force feedback; sampling rate requirements; simulation frequency rate; stability; unknown shapes; Computational modeling; Deformable models; Force feedback; Frequency; Haptic interfaces; Humans; Rendering (computer graphics); Shape; Virtual environment; Virtual reality;

fLanguage

English

Publisher

ieee

Conference_Titel

Virtual Reality, 2001. Proceedings. IEEE

Conference_Location

Yokohama, Japan

Print_ISBN

0-7695-0948-7

Type

conf

DOI

10.1109/VR.2001.913795

Filename

913795