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(white) model and the stereo mates can be taken by stereo 
photographs. Virtual stereoscopic MIS data presentation using 
digital stereo mates can follow this idea: 
For MIS data the real model is replaced by the 3dimensional 
model data, while the optical projection of the single photo onto 
the model is replaced by mathematical projection and the stereo 
mates are not obtained from stereo photographs but by applying 
mathematical projection equations calculating the synthetic 
horizontal parallaxes values. 
Within this context it is highly recommended, to use the 
mathematical model according to Egels and Massou d'Autume 
of the IGN (Paris) for the generation of stereo mates. This quasi 
universal model so far has successfully been applied for digital 
image rectification purposes. It is suited to calculate Digital 
Terrain Model data and, depending on the situation, it allows 
partly to neglect equalization approaches. For tasks which 
require map accuracy, like photomaps (of facades), mosaiking, 
multisensor imagery and data fusion, a digital Geometric pixel 
by pixel image restitution is needed, preferably applying the 
indirect rectification method. 
In particular the converting of this kind of filtered image raster 
data (e.g. in TIF-format) into vector data (e.g., DXF format), as 
for instance carried out by the ENVI Program system, promises 
great progress for automated map production, also including the 
stereo mate. 
(2) The Geometric potential of (available) stereo imagery; considering the effect of the so called stereoscopic exaggeration, see 
figure 5: 
  
Figure 5. Sample for 3D exaggeration for a mountainous Landscape under expedition contraints: 
Due to baselines of approximately 200m length from image to image for the foreground the stereoscopic effect disappears, 
while the mountainous background shows stereoscopic exaggeration, in particular for the combination of the left and right stereo 
mate (400m baseline) 
(3) The complete history for stereo imagery, including the 
stereo photo plasticon, see figure 6: 
  
Figure 6. The "Paradise Garden of Eden" as situated 
in the valley of the river Euphrates is one highlight 
for 3dimensional visualization of the Stereoscope Agency 
http://stereoview.forU.de, 
a close-range image of a long-range vision history 
(4) The benefit of combining day- and night MIS stereo 
mates; 
(5) The benefit of (synthetic) stereo panorama imagery; 
(6) The effect of different pixel sizes for the MIS stereo 
mates, see figure 7: 
  
Figure 7. Lorelei Landscape (Germany): Vertical stereoview 
mounting as a 3D image sample 
e to be viewed with stereo wedge glasses (KMQ-method) and 
e as a sample for stereo mates showing different pixel size 
(40 LL on top, 200 1, below) 
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