In August 2020, BSF Swissphoto was contracted by the State Office for  Geoinformation and Land Surveying of Lower Saxony (LGLN) for the  project "Aerial Nadir and Oblique images for Göttingen".

The goal  was to capture nadir imagery as well as simultaneous oblique aerial  images in four directions with resolutions of <10 cm. We used the  Urban Mapper from IGI mbH, an oblique image system with a total of eight  camera modules: four sensor modules form the nadir view, the other four  RGB camera modules form the oblique image perspective. These cameras  look forward, backward, right and left. The recording angle of the  oblique images is 42°, which allows the complete coverage of house  facades in inner-city areas.

On one day in September, the entire  area of 216 km2 was surveyed in 4 hours, and 22,400 images were taken  and delivered to the client after aerotriangulation.