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Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Geometric Fitting of Circle and Ellipse
 Institute of Control, Automation and Systems Engineers ICASE, Korea: Korea Automatic Control Conference 1998 Pusan, Korea, 1998 pp.10721075 
 Korea Automatic Control Conference <1998, Pusan, Korea> Institute of Control, Automation and Systems Engineers (Annual Conference) <4, 1998, Pusan, Korea> 

 Korean 
 Conference Paper 
 Fraunhofer IPA () 
 Ellipsometrie; Fitting; Kreis; Nonlinear Least Squares; Orthogonal contacting; Singular Value Decompositon 
Abstract
The least squares fitting of geometric features to given points minimizes the squares sum of erroroffit in predefined measures. By the geometric fitting, the error distances are defined with the orthogonal, or shortest, distances from the given points to the geometric feature to be fitted. For the geometric fitting of circle and ellipse, robust algorithms are proposed which are based on the coordinate description of the corresponding point on the circle/ellipse for the given point, where the connecting line of the two points is the shortest path from the given point to the circle/ellipse.