GEOG 892
Geospatial Applications of Unmanned Aerial Systems (UAS)

The new ASPRs Standards and number of check points

PrintPrint

The new ASPRs Standards and number of check points

The new standards provide Table 8 for the recommended number of check points required for validating product accuracies. For project areas that are larger than 2,500 square kilometers, refer to the text of the standards for guidance.

Please click the link below for a text description of the table.
Table 8 Recommended number of check points required for validating product accuracies according to ASPRS Standards
Click for a text description of Table 8.
Horizontal Accuracy Testing of Orthoimagery and Planimetrics
Project Area (Square Kilometers) Total Number of Static 2D/3D Checkpoints (clearly-defined points)
500 20
501-750 25
751-1000 30
1001-1250 35
1251-1500 40
1501-1750 45
1751-2000 50
2001-2250 55
2251-2500 60
Vertical and Horizontal Accuracy Testing of Elevation Data sets
Project Area (Square Kilometers) Number of Static 3D Checkpoints in NVA3 Number of Static 3D Checkpoints in VVA Total Number of Static 3D Checkpoints
500 20 5 25
501-750 20 10 30
751-1000 25 15 40
1001-1250 30 20 50
1251-1500 35 25 60
1501-1750 40 30 70
1751-2000 45 35 80
2001-2250 50 40 90
2251-2500 55 45 100

Find more information about the new ASPRS standards here.

Download a copy of the standards here.