3d-reconstruction & Re-production in Archaeology

First an imaging 3D-Laser Scanner (3D-LS) will be presented and its functioning will be explained. The scanning mechanism of the 3D-LS is realized by two Galvanometer Scanners. Using such a scanning device it is possible to program various scanning patterns depending on the application. Therefore, the scanner can be applied for the digitization of small sculptures as well as for digitizing interiors of rooms. It has been shown that the 3D-LS is an excellent tool for 3D-Reconstruction. However, using laser scanners for digitizing comprehensively archaeological items means that several hundreds of Megabytes must be efficiently processed. This problem will be addressed in the second part. It will be shown, how laser scanner data must be processed to obtain NC-programs for re-production in archaeology. Here the Advanced Surface Modeling Software Package (ASMOS) developed by the University of Stuttgart and the Higher Technical Institute is applied. Also the problem reconstructing solids by using 3D-LS data from different overlapping views will be addressed and examples will be presented. Various examples will demonstrate that 3D-LS can be well applied in 3D-reconstruction and re-production if sophisticated and powerful software packages are available for processing the 3DLS image data efficiently.