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supporting structure should be rebuilt by honeycomb paper 
boards drenched in phenolic resin. The surfaces of these boards 
must be shaped so that they fit perfectly to the backplane of the 
painting's structure which shape is determined by the worm- 
eaten wooden surface (s. Figure 17). The 3D-LS was applied to 
digitize remotely the backplane of the painting(s. Figure 18). 
The laser scanner data were used to generate NC-data for 
milling the honeycomb paper boards. These boards were finally 
glued on the backplane with a special adhesive. This 
conservation project was led by the Fachhochschule Hildesheim 
/ Holzminden Germany. 
6. CONCLUSIONS 
It was explained that 3D-Laser Scanners can be well used as a 
data acquisition tool for 3D-reconstruction and reproduction in 
archaeology. It was worked out that scanning patterns must be 
selected independence on the application. The 3D- 
reconstruction and Re-production process was tested with 
various objects and showed robust and precise results. The 
experiment carried out together with the Fachhochschule 
Hildesheim showed that laser scanning combined with 
advanced production engineering opens the application field of 
conservation. 
Figure 18. Colour Coded Range Image of the Backplane 
References 
Wehr, A., 1999. 3D-Imaging Laser Scanner for Close Range 
Metrology. Laser Radar Technology and Applications IV. Proc. 
of SPIE, Vol. 3707. Orlando Florida, pp. 381-389. 
Thomas, M., Wehr, A., 2001. Digitization of the Scientific 
Satellite CHAMP by Using a 3D-Laser Scanner. Optical 3-D 
Measurement Techniques V. Conf. Papers Vienna , Copy and 
Druck Wien, pp. 70-77. 
Acknowledgements 
The authors would like to thank Dipl-Ing. (FH) M. Thomas for 
picture editing, Dipl.-Biol. M. Jamach for making available the 
Maerzenbierkeller and the "Deutsche Forschungsgemeinschaft 
(DFG)" who sponsored the survey of the Diplodocus camegii.