3. PRODUCTS

The products of data collection and data processing that constitute the input data of the platform are the 3D models of the Archaeological Site of Meteora and the two rocks, Modi and Alyssos, as well as the orthoimages of part of the Archaeological Site of Meteora, the dense point clouds of the two rocks and Digital Elevation Models (DEMs). The last three types of metric data are only available to certain categories of users, i.e., geospatial engineers, architects and archaeologists, while the point clouds are only available if requested, upon approval by the system administrator, subject to the terms of a relevant license. The 3D surface model of the Archaeological Site of Meteora with texture generated using the oriented images is shown in Figure 1. The dense point cloud consists of 353,140,592 points, while the surface includes 67,471,539 faces and 34,029,510 vertices. The 3D model of the rock of Modi of OBJ format, is approximately 650 MB and consists of 34 mil. triangles, while the 3D model of Alyssos of OBJ format is 400 MB and consists of 27 mil. triangles.  

3d model of meteora
Figure 1. Screenshots from the 3D model of the Holy Meteora site within the Agisoft Metashape software.
Digital Elevation Model
Figure 2. Digital Elevation Model (DEM) at 25 cm spatial resolution of the Holy site and the rest area of Meteora. The window displays the altitude information of the two rocks.
3d model of meteora
Figure 3. View of the eastern side of the 3D model of Alysos rock.
3d model of meteora
Figure 4. View of the south side and part of the top surface of the 3D model of Alysos rock.
3d model of meteora
Figure 5. Detail of the 3D model of the Modi rock.