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« on: September 30, 2020, 07:18:11 PM »
Hi Dave:
These are not lens parameters or corrections, but reference data. And definitively they should not be used in a different project in any case.
If you want to export for re-use lens corrections, you need to export camera parameters from the camera calibration dialog.
Importing lens calibration that came out of a different project could make some sense with a P4P because its camera apparently (according to some papers I have read) is reasonably stable.
But for those parameters to be accurate and valuable for future cases, your source project needs to be very well constrained, which is not always the case with drones without an accurate camera geotagging system. It will depend on the ground texture, overlap, block geometry, etc. It is a complex question, Dave.
Calibrating by means of the Metashape's built-in checkerboard calibration feature is not a real alternative for drone cameras. It is intended for close range, unless you had a screen of the size of a football yard.
Best regards