The Integration of The Multi-Source Data for Multi-Temporal Investigation of Cultural Heritage Objects

Nowadays, there are many techniques being developed to increase the knowledge of cultural heritage sites as there are many historical places where the knowledge about their construction and function is not well investigated yet. The example of such monument is the Justice Court Tower at Royal Castle in Warsaw where the excavation of the tower was carried out for archaeological and architectural research. This article demonstrates the integration of digital methods along with excavation work. Three measurement techniques were applied: the close-range terrestrial laser scanning and close-range photogrammetry as well as surveying. It was important to determine the potential route of the wall on the west side of the tower and to determine its relationship with the lowest part of its foundations. The results confirmed that the Tower collapsed in the Middle Ages. The building that has survived to the present day is another one erected on this site. At least two construction phases have been distinguished in the foundation structure. The relic of the wall adjacent to it from the west could have been an element of earlier buildings integrated with the Tower or an autonomous edifice. The study of the torsion angles of the surfaces of the lowest foundation layers in relation to slightly younger upper levels and the parallelism of both adjacent structures allowed to finally resolve this issue.