Radius Constraint Least-Square Circle Fitting Method

Qiang Zhu; Guo Hui Zhang; Zhen Xu

doi:10.4028/www.scientific.net/AMR.411.241

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 411Radius Constraint Least-Square Circle Fitting...

Radius Constraint Least-Square Circle Fitting Method

Abstract:

Short arc usually lost the most part of information in measurement, therefore the fitting center can not be found accurately. The shortage of least-square method is analyzed in short arc fitting. The uncertainty of fitting center direction and fitting radius is illustrated. And we derived the solution to estimation of fitting center direction. Base on the testing environment, radius constraint least-square fitting circle method is proposed. Simulations demonstrated excellent performance of this algorithm.

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Periodical:

Advanced Materials Research (Volume 411)

Pages:

241-244

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.411.241

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Online since:

November 2011

Authors:

Qiang Zhu, Guo Hui Zhang, Zhen Xu

Keywords:

Least-Square Method (LSM), Radius Constrained, Radius Measurement, Short Arc, Standard Ball

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References

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