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Author Topic: Fit additional correction: what coefficients it fit?  (Read 2625 times)

dobedobedo

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Fit additional correction: what coefficients it fit?
« on: April 08, 2020, 09:08:01 AM »
Hi,
I notice that since version 1.6, p3 and p4 in camera optimization are removed, and a new option "fit additional correction" is added. However, I can't find much information about what coefficients this option enable to fit. In the 1.6.0 pre-release thread, I read someone said it is used especially for wide-angle lens.
May I ask which coefficients are used to enable "fit additional coefficients"? Is it just using p3, p4, or a totally different correction model?

Cheers,

Alexey Pasumansky

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Re: Fit additional correction: what coefficients it fit?
« Reply #1 on: April 08, 2020, 03:29:51 PM »
Hello dobedobedo,

These are not p3 and p4, but total different corrections which allows to compensate the distortions which cannot be fit by the ideal Brown's model used.
Best regards,
Alexey Pasumansky,
Agisoft LLC