3D Survey of the histioric Karner in Hartberg

The historic Karner in Hartberg was captured with 3D technologies in June 2022. The survey was conducted within the Austrian coordinate system GK-M34, which was established with three GNSS-RTK reference points. Quadrant-tragets (Black and White) and significant points on the facade (e.g. tips of the roof-top) have been measured with a geodetic total station (Leica TS11) as reference points for the laserscanner (Leica RTC360) and the drone images (DJI Mini 2). Both, the laser scanning data and the drone survey have been merged with a combintation of feature matching, cloud2cloud matching and stabilised reference points. The resulting point cloud has an overall accuracy (GNSS referencing in M34) of less than 5 cm, an relative precision of the point cloud < 5 mm and an object resolution of a few milimetres.  

Description of the files provided here: (Accessible in Version 1)

OverviewPointcloud_Groundview.png - top-down view of the point cloud (point resolution was reduced for rendering)

OverviewPointcloud_Sideview.png - side view of the point cloud (point resolution was reduced for rendering)

OBJ_KarnerHartberg_M34_LowPoly_TUGrazGeodesy.zp - contains a meshed and textured OBJ file of the Karner Hartberg (Low-Polygon for general distribution) 

MeshPreview.png - Views of the Low-Poly OBJ as a teaser

ExemplaryImage_DJIMini2.jpg - Picture of the drone survey to individually evaluate resolution

Further data:

Please contact the authors if the complete data set and/or raw data (point cloud, drone images) is requried for scientific research.

Difference between Version 1 and 2 is the height component of the 3D model:

Version 1: the model is provided with ellipsoid heights

Version 2: the model is provided with orthometric heigths