%0 Generic
%A Dirksen, Dieter
%A Böröcz, Zoltan
%A Bischoff, Guido
%A Loerper, Lena
%C Bonn
%D 2008
%E Posluschny, A.
%E Lambers, K.
%E Herzog, I.
%F propylaeumdok:534
%P 78-82
%R 10.11588/propylaeumdok.00000534
%T High resolution documentation and evaluation of decorated wall stones with optical 3D measurement techniques taking the megalithic gallery-grave at Züschen / Lohne, Germany as an example
%U https://archiv.ub.uni-heidelberg.de/propylaeumdok/534/
%X A method for quantitative high resolution 3D documentation and investigation of surface structures is presented for which two closely related techniques have been combined: photogrammetry and optical profilometry (fringe projection technique). While the latter is particularly suitable for achieving large quantities of 3D data from limited areas photogrammetry allows a very precise measurement of single points in a wide field. By integrating these methods large surfaces decorated with rock art can be acquired with high resolution. For further evaluation range images are computed which render 3D data as a virtual image where each pixel represents a height value. The example of the gallery-grave at Züschen/Lohne in Hesse, Germany, demonstrates the capabilities of the method.