Pix4d Mapper large error on Check Point

PIX4Dmapper PIX4Dmapper Questions/Troubleshooting
1

Hello,

I’m having strange troubles processing a projects with GCPs. If I use all the known points as GCPs, i’ll usually get good accuracy on those points.

However, if I set some of those as check points, there is an error on z coordinate, around 20 cm (CP t2).

I captured this project from height of 50m and 80% overlap.

Below is geolocation lines from processing report and a link to the entire report and log file.
part_report.pdf (1.9 MB)

2

Hello, I would say remark your GCPs and checkpoint and it is not recommended not to have GCPs at the edge of the area of mission where the overlap is low.