3D error estimation from tie points Follow The PDF document below provides information about the a posteriori variance component of all the observations for the generated 3D points. error_est.pdf (800 KB) Was this article helpful? 1 out of 8 found this helpful Related articles What is the difference between theoretical error and the error to GCP initial position? AutoGCPs detection functionality on PIX4Dcloud Advanced How to add / import and mark manual tie points (MTPs) in the rayCloud Menu Process > Processing Options... > 3. DSM, Orthomosaic and Index > Additional Outputs Example projects - real photogrammetry data Article feedback (for troubleshooting, post here) 0 comments Article is closed for comments.