Case Study: LOD2 Building Extraction in Dar es Salaam Downtown

By Ladislav Horký
August 29, 2018

En route to the global FOSS4G event, we created a case study of the Dar es Salaam downtown, showcasing much of our technology stack. Uhurulabs provided us with UAV aerial imagery. Our Vadstena reality-capture system was used to create the 3D textured model and we used some our more recent R&D to extract the LOD2 model of a few city blocks.

Dar es Salaam Downtown Case Study

We used the open-source VTS 3D Geospatial Software Stack to perform fusion of the textured 3D model with a global DEM and a global orthophoto mosaic to facilitate seamless rendering. The street label data based on OSM are drawn from the maptiler cloud.

You can browse the live result here.

Ladislav Horký, Head of Photogrammetry

Ladislav is the person in charge of all 3D mapping projects carried out in Melown Technologies. As such, he is both an expert in the subtleties of Vadstena, Melowntech's 3D reality-capture system, and a power user of VTS geospatial software stack.