3D mapping can be used in documentation of cultural heritage, uncovering archaeological sites, technical documentation of buildings (3D passport), monitoring of changes and displacements, calculation of volumes, creation of 3D maps, DEM, DTM, and orthophotomaps of larger territorial units, mapping of highways and streets, digitization of buildings and cities.
We use this technology primarily for mapping of larger territorial units. For this purpose we have developed a platform with four cameras placed on an aircraft carrier.
UAS / UAV
For mapping of smaller areas and buildings in cities where higher details resolution is required, we use Unmanned Aerial Systems equipped with cameras. The data are supplemented by Close-Range photogrammetry, or data from laser scanning, as needed.
These measurements are made using GNSS receivers, and are required for acquiring GCPs. Number of these points depends on the extent of mapped area, and they are used for georeferencing of the model.
Cutting edge technology
We use cutting edge technology of Aerial and Close-Range photogrammetry, Laser scanning and Unmanned Aerial Systems (UAS) to collect data. The advantage of these technologies is that they represent contactless scanning methods. It means that the surface of measured object (landfill, embankment) does not get damaged due to influence of measurement device or its service that could potentially cause altering of object shape. It is also possible to measure inaccessible places or places with hazardous material. A considerable advantage is that fieldwork is fast and therefore does impose time restrictions for other building processes in given area. Thanks to these technologies we are able to capture even small details and surface of building deformations.