The Cost of Bad Control: Real-World Scenarios Where Weak GCPs Caused Costly Re-Flights
GCP errors in photogrammetry often stem from misidentified targets, unreliable field measurements, incorrect coordinate settings, or weak control-point distribution. These issues can distort a reconstruction, reduce positional accuracy, and create uncertainty in orthomosaics, point clouds, and terrain models used for engineering and UAS mapping. CompassData helps reduce that uncertainty with field-validated Ground Control Points, or …
