A3's wide field of view, high resolution and multi-directional imagery, in addition to robust block adjustment algorithms, generate highly accurate photogrammetric mapping products even without Ground Control Points.
The following table presents typical accuracy analysis carried out over a test field in three different flights:
|Flight Mission||Altitude (feet)||Area (sq. km)||GSD (m)||GCP/ChP||RMSx (m)||RMSy (m)||RMSz (m)|
GCP=0 - no GCPs were used
The A3 camera's extremely wide field of view provides an optimal base ratio as well as multiple image overlapping - ensuring high accuracy results in aerial triangulation.
A3’s processing system is unique in its ability to automatically extract and match millions of tie-points in any given block size, resulting in:
The A3's rotating camera design captures each point numerous times from different angles allowing:
The A3 system’s long focal length optics capture high-resolution imagery, contributing to accuracy by: