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4. CONCLUSIONS 
Complete plotting of an object including the transformation into a specified superordinate reference coordinate system is 
a demand made by the user on all measuring techniques. Photogrammetry meets this demand using bundle adjustment 
programs, but it needs a long time and a special photogrammetric knowledge for doing that. This is the central aspect of 
photogrammetric know-how that has to be conveyed to the user. A local positioning system for the determination of the 
projection centers and image rotations at the time of exposure would help to simplify the process a great deal and would 
pave the way for the implementation of real-time capabilities. 
Enormous efforts still have to be made today to give the users of conventional measuring methods an understanding of 
this measuring principle and to convince them of its merits. The benefits must undoubtedly be set against a few 
drawbacks which are associated with the general problem of the optical measurement approach in industry: Only a 
small percentage of potential users in industry are aware of the capabilities offered by optical measurement systems for 
solving their measurement problems. The successful use of photogrammetric systems such as InduSURF Digital will 
lead to an increase in the number of users and will promote the principle of digital image measurement by 
photogrammetric methods in a wide variety of industrial sectors. 
Optical measuring techniques will continue to penetrate into most varied industrial sectors. Methods like laser triangu- 
lation, fringe projection and industrial photogrammetry using digital cameras are presented as examples of Carl Zeiss' 
activities in the field of optical industrial measuring technology aiming at the development of marketable systems. 
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Fóhr, R., 1990, Photogrammetrische Erfassung ráumlicher Informationen aus Videobildern. 
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Haberácker, P., 1991, Digitale Bildverarbeitung - Grundlagen und Awendungen. 
Carl Hanser Verlag München Wien, 4.,durchgesehene Auflage. 
Jähne, B., 1991, Digitale Bildverarbeitung. 
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Luhmann, Th.,1988, Ein hochauflésendes automatisches Bildmeßsystem. 
Wissenschaftliche Arbeiten der Fachrichtung Vermessungswesen der Universitat Hannover. ISSN 0174-145 
Tabatabai, Ali J., Mitchel, O.R., 1984, Edge Location to Subpixel Values in Digital Imagery. 
IEEE Transactions on pattern analysis and machine intelligence, Vol. PAMI-6, No. 2. 
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