In the context of this practical class we had to work in a group of 2-3 students. We had several projects where I and my collegue Pascal dealt with GPS /GNSS, Orthophotorectification, UAV/UAS and Terrestrial Laserscanning. In the assignment “Photogrammetry (Orthorectification)” we created orthophoto such as aerial triangulation, generation of Digital Surface Model, 3D Feature Collection of Salzburg region. We implemented all steps in ERDAS Imagine software. Here are some screenshots from final result.