Using GCPs causes alignment problems

[dyoung]

Hello -- I have noticed that in order for my GCPs to meaningfully improve my project's georeferencing, I need to uncheck all the cameras before alignment. However, when I do this, I sometimes get serious alignment problems, like in the screenshot attached. If I leave the cameras checked (default), the alignment is much better, but the georeferencing for the whole project becomes much worse. Is there something I can do differently to get good alignment and good georeferencing? My images are from a DJI Phantom 4.

Thanks in advance!

[Costas]

Hello dyoung,

The process should be:

1) Align Cameras
2) Import GCPs
3) After the above "Uncheck All Cameras"
4) Optimize Cameras.
5) Continue with all other steps for Dense Cloud, Mesh, etc as needed.

[dyoung]

Ah yes that works! I got great results following those steps. Thanks for clarifying the workflow.