Proceedings 18 th International Symposium CIPA 2001
Potsdam (Germany), September 18 - 21, 2001
PHOTOGRAMMETRIC METHODS FOR DOCUMENTATION OF HISTORIC MONUMENTS
IN NEED OF RENOVATION AND RESTORATION
Günter Eckstein
Landesdenkmalamt Baden-Württemberg
Mörikestrasse 20, 70178 Stuttgart, Germany
Phone: 0049711-1694-601, E-mail: Eckstein.Guenter@gmx.de
KEY WORDS: Photogrammetric Documentation, Stereorestitution, Digital Image Rectification, Preliminary Examination, Monu
ment Presevation
ABSTRACT
In 1976 Gerhard Nagel, art historian at the University of Stuttgart, gave a report at the CIPA Symposium in Bonn, Germany, about
"the responsibility of the photogrammetrist for the recording of valuable details in architecture". He presented different examples of
how to interpret and draw stone sculptures and capitals of baroque churches, or frame constructions of half-timbered houses. At that
time, the compilation was carried out by help of stereoscopic images and analog instruments (Nagel 1977).
Nowadays we have different methods to produce and to present photogrammetric results - analytic and digital working, stereoscopic
and non-stereoscopic viewings, recording of vektor-data and processing of digital images. But which of these is the right procedure
to be chosen in an individual case? The answer must be given in connection with the secondary tasks, such as structure and damage
investigations, restoration and rebuilding plannings or scientific research.
The pioneering work of Gerhard Nagel has been continued at the Landesdenkmalamt Baden-Württemberg in Stuttgart, Germany. In
this paper, the development of photogrammetric technology since this time will be traced and illustrated with several examples from
the southwestern part of Germany.
Photogrammetric evaluations for urban plannings or for the renovation of facades can be done by monoscopic or stereoscopic
measurements. By help of examples showing both positive and negative results of these techniques, this paper will explain in which
situation which method can be used and where it cannot, particularly taking into account the above mentioned secondary tasks.
Fig. 1: St. Georg in Reichenau-Oberzell. Inner wall of nave. Stereo-image 1981 before restoration.
