image processing - Is edge points of object represent an ellipse? -


given edge points of object. let obj = (xi,yi); i=1,2,3,.... how can know if these edge points represent ellipse or not?

as long have more 2 points try linear fitting using least squares:

see here:https://math.stackexchange.com/a/153150/104118

see section 7 fitting ellipse 2d points in actual link: http://www.geometrictools.com/documentation/leastsquaresfitting.pdf


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