研究各种拟合圆的方法,提出了一个圆的代数距离表示法的系数约束条件,在此约束条件下讨论圆的几何特征参数的估计问题,并给出了特征参数在约束条件下的最小二乘估计.实例验证表明,文中算法比一般最小二乘法具有更高的拟合精度.

-Various methods of fitting a circle, a circle is proposed algebraic representation of the coefficient of distance constraints, under the constraints discussed in this round of the estimation of geometric parameters, and parameters are given in the minimum under the constraints least squares estimation. case study shows that the algorithm has a higher than least squares fitting precision.