Presentation on theme: "ISPRS Commission V Symposium 2002 2-6 September 2002 Corfu – Greece CLOSE-RANGE IMAGING LONG-RANGE VISION."— Presentation transcript:
ISPRS Commission V Symposium 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.
Simple systems – easy to use, also for non expert photogrammetrists Low cost – less than $ –Rectification –Photointerpretation –Plotting simple stereoplotters alternative systems without stereoscopy “Traditional” systems VSD by Jakimsky, Stereometric by Galileo-Siscam (Italy), “RFD” by Geotop (Ital y). Non-conventional systems Rhad by Studio Presta, Italy PhOX by Studio Presta, Italy Canoma PF3 by Geotop, Italy Photomodeler
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Photogrammetric stereoplotters Analog ) Analytical ( ) Digital ( )
RhAD by Studio Presta, Italy The easiest tool for simplest photogrammetric surveyRhAD by Studio Presta, Italy The easiest tool for simplest photogrammetric survey 1)
RhADRhAD Rhad 1.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