The results from the first two possibilities are more or less 
difficult to transfer to a whole configuration. Nevertheless 
this is in most cases the only available possibility for 
comparing systems. 
Standardized test objects may be defined, but real ob- 
jects vary in a very wide range and the probability of hav- 
ing a similar situation is low. 
Performing a test measurement under real conditions is 
the optimal way to find out whether a measurement sys- 
tem is suitable for the desired task or not. For individual 
configurations this is impossible because of missing hard- 
and software. For ready-to-use systems it may be real- 
ized, but even here the effort to be done for adapting and 
installing is high. 
Configuration simulations are known from bundle block 
adjustment. They are used to optimize the geometrical 
stability of a block. They can be used with video systems 
to evaluate the geometrical layout and will show the de- 
pendencies between certain hardware parameters. Any 
hardware quality aspects cannot be verified. 
7. CONCLUSIONS 
The complexity of online video measurement system 
configurations leads to difficult optimization and evalua- 
tion processes. Alternative techniques can be helpful for 
detail solutions and have to be investigated for efficiency 
and side effects. More emphasize has to be put on the 
standardization of system evaluation parameters in order 
to simplify planning tasks. 
8. REFERENCES 
Beyer, H.A.., 1992: Geometric and Radiometric 
Analysis of a CCD-Camera Based Photogrammetric 
Close-Range-System", Mitteilung Nr.51, Institut für 
Geodäsie und Photogrammetrie an der Eid- 
genóssischen Technischen Hochschule Zürich 
Husen, B., 1993: „Automatische geometrische 
Prüfung von Bohr-, Fräs- und Schneidwerkzeugen mit 
photogrammetrischen Methoden“, Wissenschaftliche 
Arbeiten der Fachrichtung Vermessungswesen 
der Universität Hannover, Nr. 195 
Luhmann, Th., 1988: „Ein hochauflösendes auto- 
matisches Bildmefisystem", Wissenschaftliche 
Arbeiten der Fachrichtung Vermessungswesen 
der Universität Hannover, Nr. 195 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996 
486 
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