Where is the fitting happening in the zernike fitting function?

[sidgairo18]

Where exactly is the fitting taking place in the zernike fitting fuction? There should be a least square error solver or and SVD operation somewhere right?

[Sterncat]

Hi Siddhartha, I used a simple orthogonal feature to calculate the coefficient. Just use each component in Zernike polynomial to multiply the matrix. Thanks! Xing Siddhartha Gairola <notifications@github.com> 于2020年12月30日周三 上午1:51写道：

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Where exactly is the fitting taking place in the zernike fitting fuction? There should be a least square error solver or and SVD operation somewhere right? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#42>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAUIRBNS2W3EGWBA3VSP7FTSXLZZNANCNFSM4VOEUTEQ> .

[Sterncat]

BTW, you are right, the solution with SVD operation is better since Zernike polynomials are not orthogonal for discrete points, but for high sampling densities, they are almost orthogonal. Alex Fan <alex.fanxing@gmail.com> 于2021年1月4日周一 下午12:49写道：

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Hi Siddhartha, I used a simple orthogonal feature to calculate the coefficient. Just use each component in Zernike polynomial to multiply the matrix. Thanks! Xing Siddhartha Gairola ***@***.***> 于2020年12月30日周三 上午1:51写道： > Where exactly is the fitting taking place in the zernike fitting fuction? > There should be a least square error solver or and SVD operation somewhere > right? > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > <#42>, or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AAUIRBNS2W3EGWBA3VSP7FTSXLZZNANCNFSM4VOEUTEQ> > . >

[sidgairo18]

Yes makes sense. Thanks for your response @Sterncat :)