1 New Calibration and Computing Method for Direct Georeferencing of Image and Scanner Data Using the Position and Angular Data of an Hybrid Inertial Navigation System

The direct georeferencing of images or other photogrammetric data requires accurate angles and positions of the site of the expose. Recently these data will be measured by an inertial reference system augmented by a GPS sensor. While the definitions of the angles derived by the inertial reference system differ from those needed for the georeferencing, appropriate transformation formulas are evident. These formulas also have to consider the small misalignments between the image coordinate system and the body coordinate system established by the inertial instruments. The new transformation algorithms in respect to these misalignments as well as a new method to calibrate the misalignments are described