I'm desperately searching for a page I've recently seen on the forum (or was it the Wiki?), describing the maths and process on how to determine a good distance between GCP;s on a large land survey project.
- Is there anyone out there who know what page I might be thinking of and is able to point it out?
We're running a full city project with a couple of thousands of drone photos and realized we might be short on control points. Our goal is to accive approximately 1" ground resolution after flying at 80m with 80/75% overlap.GCP;s are now spread out with 250 - 500 meters distance and according to the quality report that wasn't good enough.
/Anders Theodorsson - Ludvika Municipal GIS-office