Patent ID: 6633789
Filing Date: 2003-10-14
Classification: A61C,B33Y,G06G,G06T,G16H,Y10T

Abstract:
A computer-implemented method for generating a computer model of one or more teeth, comprising:receiving as input a digital data set of meshes representing the teeth; selecting a curved coordinate system with mappings to and from a 3D space; and generating a function in the curved coordinate system to represent each tooth; wherein the coordinate system is based on the following equation: V=P(&phgr;, &thgr;)+R*Direction(&phgr;, &thgr;) â€ƒwhere V is the corresponding point in three-dimensional (3D) space to (&phgr;, &thgr;, r), P and Direction are a vector functions expressed in terms of &phgr; and &thgr;.