In 2018 and 2020, BSF Swissphoto was able to carry out aerial  photography of the entire city area with a total area size of more than  800 km² on behalf of the State Office for Geoinformation and Surveying  of the City of Hamburg.

The aim of the measurement image flights  carried out in the spring with a ground resolution of better than 5 cm  and 80% longitudinal and transverse coverage was - in addition to the  creation of classic orthophotos - the comprehensive creation of true  orthophotos based on high-density bDOM.

The more than 70,000  vertical aerial images captured with a large-format measurement camera  in a total flight time of 50 object hours in 2020 were used for  extensive dense cloud calculations and 3D point cloud creation using  semi-global matching to ultimately create high-resolution 5 cm true  orthophotos for to create the city of Hamburg.