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Upgrading of Stereoplotters with New Hardware and Software Components
Klaus Szangolies
Special Project Leader
Closewitzer Strasse 44
D - 07743 Jena/ Germany
KEY WORDS: Photogrammetry, Instruments, Optical, Hardware, Software,
Superimposition
ABSTRACT
The activities for upgrading of the widely used stereoplotters have to be welcomed
and deserve support, because they increase the efficiency of photo-grammetry in
the transition phase from analog and analytical technology to digital technique.
KURZFASSUNG
Die Modernisierung und Erweiterung der zahlreichen genutzten Stereoauswerte-
geráte verdient Unterstützung, weil damit die Effektivität der Photogrammetrie in
der Phase des Ubergangs von der analogen und analytischen Technik zur
digitalen erhóht und gesichert wird.
1. Introduction
A poll held within the framework of
the special project "Upgrading Photo-
grammetric Instruments" (1992 to
1994) ascertained the opinions of
equipment manufacturers and
service companies with regard to the
modernization/complementation of
photogrammetric plotting
instruments. More than ten explained
their strategies.
The paper further considers a very
informative topical article from
"Geodetical Info Magazine" (GIM),
No. 12, of December 1993 having
the title "GIM Interviews the
Photogrammetry Industry” [6].
The opinions ascertained differ very
much.
77
These are the two most extreme
positions:
- The transition from stereo-
plotting with analog, opto-mechanical
plotting instruments (the
instruments still most widely used)
via analytical plotting to the
predominant use of digi-tal
photogrammetry will still take ten to
twenty years.
- In 1996 already, the upgrading
of analog and analytical plotters will
be meaningless, because "digital
photogrammetry will dominate world-
wide".
The reality certainly lies anywhere
between these two positions. And
since according to cautious
estimates approximately 5000 analog
plotters and several hundred
analytical plotters are currently used
