The Use of Relative Terrestrial Control Data in SPACE-M Photogrammetric Block Adjustments

Abstract

The formulation of the photogrammetric block adjustment program SPACE-M has recently been extended to use relative terrestrial information. Such relative data are readily available from local survey networks with unknown biases in translation and/or orientation and/or scale with respect to the geodetic datum. The formulation in terms of coordinate differences is briefly discussed with test results using various simulated and real data sets. The implications for topographical mapping and related applications are outlined with preliminary recommendations.