Integration of heterogeneous photogrammetry data for visualization of cultural heritage objects

Technologies of digital photogrammetry provide the metric and thematic information for various data bases, including those which are created to visualize and archive the cultural heritage objects. Due to different sizes, shapes, locations and environmental conditions of objects, data is acquired by means of various photogrammetric methods based on aerial and terrestrial digital imagery and laser scanning data. They are also very often integrated with data from other sources. Photogrammetric products dedicated for the cultural heritage are usually collected and integrated in 3D GIS data bases, which are used by various specialists involved in restoration of the historical monuments. The variety of photogrammetric data and possibility of multi criterion spatial data processing and analysis in 3D GIS, allow to reconstruct the accurate terrain topography and 3D models of valuable heritage monuments. In this paper, an integration of various photogrammetric products (created in the past and within the discussed project), used for the needs of visualization of the terrain topography and 3D models of historical buildings and vegetation for the Museum of King Jan III’s Palace at Wilanów area, is presented. The following photogrammetric products were utilized: the orthophotomap of 0.1 m resolution from the Geodetic and Cartographic Documentation Centre (CODGiK), ALS - ISOK data, 3D vector data from stereo digitalization of 0.1 m resolution images, the vegetation layer for the area of the Museum of King Jan III’s Palace at Wilanów, acquired from the 3D data base. In addition, some symbols of missing objects were used from the Google 3D WareHouse