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Figure 2: Map of a Hallstatt-Period Tumulus in Hainburg, Lower Austria 
  
  
  
  
  
Figure 3: Archaeological features of a late antique 
settlement in Zwingendorf, Lower Austria; mapped using 
,monoplotting" 
126 
aerial archaeologist very often needs slanting sunlight 
with long shadows for best interpretation results. That is 
why additionally oblique photographs are taken, where by 
choosing the most suitable angle of view even more 
details of the site can be recorded. Therefore, in most 
cases, the analysis of vertical photographs alone is not 
sufficient and oblique photographs have additionally to be 
mapped. 
Restituition of oblique photographs is made by 
"monoplotting", also provided by SCOP, which is a very 
advantageous method for us (Figure 3). For this reason, 
our camera (Hasselblad medium-format; c-60 and 80 
mm) was calibrated at the Institute for Photogrammetry 
and Remote Sensing using the local test-field and the 
ORIENT software. To get even bettter results, the 
software-package SCOP was modified for us and 
contains now also the possibility to correct the distortion 
of the lense. 
Additionally, digital orthophotos are calculated (Figure 4). 
We usually try to get Orthophotos with a pixelsize 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996 
between 10 
20 and 80 | 
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