• ISPRS Commission V
Symposium 2002
• 2-6 September 2002
• Corfu – Greece
CLOSE-RANGE IMAGING
LONG-RANGE VISION
Simple and low-cost digital
photogrammetric systems
• Tutor: Gabriele Fangi,
Professor at the Facoltà
di Ingegneria,
Università di Ancona,
Italy.
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Simple systems – easy to use, also for non expert photogrammetrists
Low cost – less than 10.000 $
– Rectification
– Photointerpretation
– Plotting
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simple stereoplotters
alternative systems without stereoscopy
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“Traditional” systems
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VSD by Jakimsky,
Stereometric by Galileo-Siscam (Italy),
“RFD” by Geotop (Italy).
Non-conventional systems
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Rhad by Studio Presta, Italy
PhOX by Studio Presta, Italy
Canoma
PF3 by Geotop, Italy
Photomodeler
UNIVERSITY OF ANCONA
FIMET
•
The list is far to be complete. I tried
unsuccesfully to contact the dealers
for
» 3D Builder
» 3D Navigator by
Menci, Italy
» PhotoBuilder
Photogrammetric stereoplotters
Analog 1900-1980)
Analytical (1980-1990)
Digital (1990.....)
1)
RhAD
by Studio Presta, Italy
The easiest tool for simplest
photogrammetric survey
•
1.
RhAD
Import the image in Rhad
(window-rose of the façade of Cathedral in Orvieto)
2.
Take four points in clockwise order at the corner of a rectangle and run
the rectification. The final image is rectangular with two unknown scale
factors in the two main directions.
3.
Then with the help of some geometrical constraints (a circle,
a square, etc) correctly dimension the image
4.
To get a stereo-partner, repeat steps 1, 2, 3, for the left image