Object scanning, the Bench of Hochdorf
The aim of the project was a three-dimensional documentation of the Bench of Hochdorf using high resolution structured light scanning in combination with high resolution digital photography for texturing. Besides the capturing of the complete geometry with an average resolution of 0.3 mm, selected objects such as load-bearing figures were digitised using a higher resolution of approximately 0.1 mm.
About 300 different positions of the Structured Light Scanner and the resultant scans were necessary to capture the whole bench. To guarantee an all-over documentation, every single scan was converted into a point cloud using a program-internal algorithm calculation followed by the registration process. In other words the scans were aligned within a common reference system to avoid gaps in between the scans.
The actual triangular transformation was done in post-processing. The complete geometry reached a resolution of 0.50 mm and the triangular transformation of the details achieved a resolution of approx. 0.25 mm.
The final step was to photo-realistically texture the digital 3D model. It can be used to create scaled ortho-views of the bench.
The 3D data of this survey could extensively be used in a project of the DFG (German Research Alliance) lead by Dr. Erwin Keefer and Dr. Jörg Biel. In the course of these comprehensive studies, this outstanding seating furniture from the Hallstatt period is elaborately re-analyzed from a technical, stylistic and archaeological point of view. Publications will follow.