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Author Topic: New markers coordinates that don't exactly match together, what happen ?  (Read 3686 times)

CindyFr

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Hello there !

I'm wondering what does Photoscan when we import new marker coordinates and when they don't exactly match :
- does he approximate the position of the model by meaning positions ?
- does he deform the model in order to exactly match coordinates ?

Thanks for your help !


Alexey Pasumansky

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Re: New markers coordinates that don't exactly match together, what happen ?
« Reply #1 on: November 27, 2017, 06:00:11 PM »
Hello CindyFr,

Georeferencing procedure (clicking on Update button on the Reference pane) is applying Affine transformations (Scale, Rotation and Translation) to minimize the errors on the checked on instances of the Reference pane.

If you optimize the camera alignment, PhotoScan uses both coordinates of the checked on instances of the Reference pane and also the projections of all markers. During the optimization procedure the relative orientation of the cameras would likely be changed and also the interior orientation parameters would be adjusted.
Best regards,
Alexey Pasumansky,
Agisoft LLC

CindyFr

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Re: New markers coordinates that don't exactly match together, what happen ?
« Reply #2 on: November 28, 2017, 04:17:52 PM »
Thank you for your response Alexey, it helps me a lot !