processes which generate highly accurate surface models from
differential GPS receivers and tachymetry. Since obtaining such models
is time consuming and resource (personnel and instrument) intensive,
the field user had in mind estimating large earth-volumes in excavation
and hauling applications rapidly for potential later use in advanced productivity
and progress monitoring applications. As earth volume estimates
generated by a UAV-based surveying approach may differ from
any conventional surveying method, greater interest was put on measuring
the errors in the generated 3D surfacemodels and earth volumes