Circle Fit (Pratt method)

版本 1.0.0.0 (2.2 KB) 作者: Nikolai Chernov

Fits a circle to a set of data points on a plane; returns the circle center (a,b) and radius R.

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更新时间 2009/1/10

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编者注: This file was selected as MATLAB Central Pick of the Week

This is a robust and accurate circle fit. It works well even if data
points are observed only within a small arc. This circle fit was proposed by V. Pratt in article "Direct least-squares fitting of algebraic surfaces", Computer Graphics, Vol. 21, pages 145-152 (1987). It is more stable than the simple Circle Fit by Kasa (file #5557).

引用格式

Nikolai Chernov (2024). Circle Fit (Pratt method) (https://www.mathworks.com/matlabcentral/fileexchange/22643-circle-fit-pratt-method), MATLAB Central File Exchange. 检索来源 2024/7/25.