Shakarji, C.
and Srinivasan, V.
(2019),
On Algorithms and Heuristics for Constrained Least-Squares Fitting of Circles and Spheres to Support Standards, ASME Journal of Computing and Information Science in Engineering
(Accessed April 25, 2024)
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On Algorithms and Heuristics for Constrained Least-Squares Fitting of Circles and Spheres to Support Standards
Published
Author(s)
,
Abstract
Constrained least-squares fitting has gained considerable popularity among national and international standards committees as the default method for establishing datums on manufactured parts. This has resulted in the emergence of several interesting and urgent problems in computational coordinate metrology. Among them is the problem of fitting inscribing and circumscribing circles (in two-dimensions) and spheres (in three-dimensions) using constrained least-squares criterion to a set of points that are usually described as a point- cloud. This paper builds on earlier theoretical work, and provides practical algorithms and heuristics to compute such circles and spheres. Representative codes that implement these algorithms and heuristics are also given to encourage industrial use and rapid adoption of the emerging standards.Citation
ASME Journal of Computing and Information Science in Engineering
Pub Type
Journals
Keywords
circle, circumscribed, constrained least squares, datum, inscribed, least squares, optimization, sphere
Citation
Created September 1, 2019, Updated October 2, 2019