Iam using my Phantom 3 to take fotos 60 meters above ground level. I took 64 photos of a 1 hectare area. Overlap and keypoints are all good according to the quality report.
I have 3 Ground Control Points, plotted by a RTK Trimble GPS.
As soon as i insert the points they are displayed very high above the raycloud. On the MapView i can see that they are in the correct areas (within 5m)
I use the basic editor to link ±10 images to each of the 3 GCP`s. After reoptimizing the raycloud is upsidedown.
I then deleted all of the image geotags that the phantom3 gave it, and reoptimized again.
It helped a bit. but the image is still turend 90 degrees in raycloud view and also the cameras are now placed in almost a half moon type of effect. Also the quality report now states “157.25% relative difference between initial and final focal length” and “3 GCPs (3 3D), mean error = 4.553 m”
What am i doing wrong? The images were taken and then the memory card placed in my computer.
I notice that when uploading the images it tells me the altitude is 60m. Could it be that i need to add 1500m to each photo as i am at 1500m and so is the GCP.