-23- 
Non Uniform Rational B-Splines, (NURBS) repre 
sentation. 
These computed internal representations of the digitized object 
is obtained by the Advanced Surface Modelling Software 
Package (ASMOS) developed by the Institute for Control 
Technology for Machine Tools and Manufacturing Systems 
(ISW) at the University of Stuttgart and the Higher Technical 
Institute in Nicosia, Cyprus. 
Figure 12. Generated Surface of the front digitised view 
The output of ASMOS can be processed by all 2D / 3D-oriented 
CAD/CAM-systems. For the data transfer within CAD -systems 
the following interfaces are available 
• IGES, 
• VDAFS and 
• STEP. 
Figure 12 shows the generated surface of the front digitized 
view of the glass head and figure 13 illustrates the manipulation 
of the structure of a special part of the spline surface. 
Figure 13. Structure Manipulation 
4.3 Volumeoriented Digitalizing Approaches 
When the digitalized object is measured not only from one side 
but from different overlapping views, it is then possible to 
reconstruct the entire object (Volume, Solid) by using specially 
developed algorithms which are also integrated in ASMOS. 
Figure 14 shows the results of the reconstructed glass head (as 
volume structure). Figure 15 (volume model) and 16 illustrates 
the reconstructed head of a mummy (from Cyprus). 
5. LASER SCANNING FOR CONSERVATION 
Figure 16. Reconstructed Head of a Mummy 
The 3D-LS was applied to support the conservation of a 
wooden epitaph from a church at Rothenstein in Germany. This 
400-year-old crucifixion painting was badly damaged by insect 
damage. Originally the supporting structure was 2 cm thick. 
Now, in some areas only a wafer-thin layer remained. The 
Figure 17. Backnlane of the Painting