simplified solution which accomplishes 
the needed accuracy. This figure 
displayes non-metric camera 
arrangements providing 3jum mean 
square error picture co-ordinate. 
Naturally we admitted the method 
definetely only after the photo- 
processing of the data points brought 
about. 
  
  
  
  
  
  
  
  
  
  
  
  
  
x 
Figure 2/a: The geometry of exposure 
and the coefficient matrix belonging to it 
before accuracy planning 
162 
  
  
  
  
Figure 2/b: The geometry of exposure 
and the coefficient matrix belonging to it 
afler accuracy planning 
3. DATA ACQUISITION 
Photogrammetric data gaining means 
that we are able to produce image co- 
ordinates from a -usually- unknown 
system of co-ordinates. Data acquisition 
consists of two parts: taking photos and 
measuring image co-ordinates. 
Measurement is done by means of 
photogrammetric instruments «nd 1n case 
of digital stocks at a workstation. 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996 
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