46 
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processing 
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this paper, 
e General 
orking on 
Low Cost Digital Photogrammetrie System 
for Education and Training 
Shunji Murai 
Institute of Industrial Science 
University of Tokyo 
7-22 Roppongi, Minatoku 
Tokyo, Japan 
Fax 81-3-479-2762 
Abstract 
In the conventional education and training of photogrammetry, 
a stereo-mirror scope and a parallax measurement bar are used, 
which has limitation to obtain precise orientation and 
accuracy. 
In the computer age, it becomes very easy to develop a low 
cost digital photogrammetry system with' a similar performance 
as an analytical plotter if a personal computer, a digitizing 
table with two cursors attached to stereoscope and software 
of bundle adjustment with selfcalibration are combined 
together as shown in Figure. 
In cooperation with TOPCON, the author has succeeded to 
obtain a patent from European Patent Office for the above 
system on June 27, 1989.