SHAPE PARAMETER DETERMINING METHOD, SHAPE PARAMETER DETERMINING DEVICE, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To stably determine a parameter for describing a theoretical shape corresponding to three-dimensional shape at a high speed. SOLUTION: Parametersα(k)andβ(k)are used as known quantity, and parameters x0(k+1)and y0(k+1)are determined so as to minimize square sum S(x0(k+1), y0(k+1),α(k), andβ(k)) of the error of the distance from the shape measured data Pito the center axis 101. The determined parameters x0(k+1)and y0(k+1)are used as known quantity, and parametersα(k+1)andβ(k+1)are determined so as to minimize square sum S(x0(k+1), y0(k+1),α(k+1), andβ(k+1)) of the error of the distance from the shape measured data Pito the center axis 101. COPYRIGHT: (C)2007,JPO&INPIT