Title :
Surface fitting from digitized data points
Author :
Fang, Minglun ; Chen, Shenjian ; Wang, Xueyan
Author_Institution :
Dept. of Manuf. Autom. & Robot., Shanghai Univ. of Technol., China
Abstract :
Digitized data carry measurement errors. To assure the accuracy of the fitted surface, two fittings are made instead of one. The first fitting generates quadric surfaces from the digitized points by the least squares method in order to filter out the measurement errors. The second fitting generates bicubic splines as the final result from the patch nodes calculated from the quadric surfaces
Keywords :
filtering and prediction theory; image processing; least squares approximations; measurement errors; splines (mathematics); surface fitting; bicubic splines; digitized data points; filtering; least squares method; measurement errors; patch nodes; quadric surfaces; surface fitting; Curve fitting; Filters; Manufacturing automation; Probes; Robotics and automation; Rough surfaces; Shape measurement; Surface fitting; Surface roughness; Time measurement;
Conference_Titel :
Robotics and Automation, 1993. Proceedings., 1993 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-8186-3450-2
DOI :
10.1109/ROBOT.1993.291816
