Deformation and cutting in virtual surgery

Author

Jiao-Ying, Shi ; Li-Xia, Yan

Author_Institution

State Key Lab. of CAD&CG, Zhejiang Univ., Hangzhou, China

fYear

2001

fDate

2001

Firstpage

95

Lastpage

102

Abstract

This paper discusses key techniques of deformation and cutting in virtual surgery. It introduces a new geometry reconstruction algorithm, which can get a layered tetrahedron based volume model. Based on the real physical property of soft-tissue a simplified viscoelastic physical model is introduced, and the finite element method is used for the deformation computation. Different from the collision between rigid bodies, in a virtual surgery environment the collision happens usually between a rigid body and a soft body. This paper brings forward an FDH based bounding volume hierarchy algorithm to handle the collision detection successfully. In order to simulate the cutting operation, a global cutting algorithm is introduced. The 3D texture mapping is used to enhance the realistic effect

Keywords

finite element analysis; image texture; medical computing; realistic images; surgery; virtual reality; 3D texture mapping; bounding volume hierarchy algorithm; collision detection; cutting; deformation; finite element method; geometry reconstruction algorithm; layered tetrahedron based volume model; realistic image; soft-tissue; virtual reality; virtual surgery; viscoelastic physical model; Computational modeling; Deformable models; Elasticity; Finite element methods; Geometry; Physics computing; Reconstruction algorithms; Solid modeling; Surgery; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Imaging and Augmented Reality, 2001. Proceedings. International Workshop on

Conference_Location

Shatin, Hong Kong

Print_ISBN

0-7695-1113-9

Type

conf

DOI

10.1109/MIAR.2001.930270

Filename

930270