正交距离圆曲线拟合方法

Fitting of circles based on orthogonal distance

在分析圆曲线拟合准则基础上,提出采用正交最小二乘法拟合圆曲线。该方法以圆曲线正交距离残差平方和极小为准则。基于间接平差原理详细推导了相关模型和算法,并以实际算例说明了该方法的效果。

In this paper the method of Least-Squares orthogonal distance fitting of circles are presented,based on analysis the cri- terion for circle fitting.The criterion is to minimize the square sum of the orthogonal distance,the model and algorithm are deduced based on indirect adjustment,the result is illustrated through a example.