I am trying to test out a drone flight me and a colleague executed (Small, manual flight) and when I exported my CSV file (Once confirming image suggestions), upon re-importing the exported CSV, it has tilted my component.
I appreciate any suggestions/assistance. Hoping once I build some foundation knowledge I can then return help and favours
Hi 360George,
what for are you using CSV file in this case? You have quite big errors on the GCPs. You can try to turn off georeferencing for the images and use just GCPs to georeference your project (if those GCPs have coordinates).
Are the GCPs in local or world coordinate system? Do you have set correct coordinate system in the application settings?
Hey man, nice to hear from you again, my guardian angel hahaha
Here are both the initial file and the exported file.
I believe it was based on OSGB.
I am just trying to test the quality of mesh model production, the previous project was way too big to view and even export/load into other softwares so I am trying a smaller project which, being totally honest, isn’t near as organised as the previous one.
Your advice helped a lot on the previous project and I compared my cloud and ortho results to DJI Terra. I found the ortho wasn’t as clear as Terra when zooming in and point clouds were roughly the same.
I was advised on a post-processing clean-up software which I can’t seem to figure out quite just yet and I was also advised on a software to check pointcloud accuracy too.
It looks better than in first case but still, those GCPs are quite far away from its positions. Have you turned off georeferencing for the images? How were GCPs measured? Were there just taken from your first model? If so, for georeferencing were used just drone data? Is that RTK drone?
Also, it seems that GCPs are in line, which is not ideal. They should be spread regularly.