Extension of orthogonal distance method of ellipse fitting and its implementation
Qingfeng Zhang · Computer Engineering and Applications Journal · 2010
The fitting problem of concentric elliptical arcs exists in astronomy image processing,computer vision and CAD.To solve the problem,the leastsquare orthogonal distance method of single ellipse's fitting is extended,and its algorithm is proposed.The steps and pseudocodes of its implementation are also presented.The extended method unifies several ones which are for single circle fitting,single ellipse fitting and multiple concentric circles or ellipses fitting.All these fitting cases can be handled by one procedure.Experimental results show that the extended method is more accurate and stable than single arc fitting one.