• ISPRS Commission V Symposium 2002

• 2-6 September 2002• Corfu – Greece

CLOSE-RANGE IMAGING CLOSE-RANGE IMAGING LONG-RANGE VISIONLONG-RANGE VISION

Simple and low-cost digital Simple and low-cost digital photogrammetric systemsphotogrammetric 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 10.000 $

– Rectification– Photointerpretation– Plotting

• simple stereoplotters• alternative systems without stereoscopy

• “Traditional” systems• VSD by Jakimsky, • Stereometric by Galileo-Siscam (Italy), • “RFD” by Geotop (Italy).

• Non-conventional systems• Rhad by Studio Presta, Italy• PhOX by Studio Presta, Italy• Canoma • PF3 by Geotop, Italy• Photomodeler

• The list is far to be complete. I tried unsuccesfully to contact the dealers for

» 3D Builder

» 3D Navigator by Menci, Italy

» PhotoBuilder

UNIVERSITY OF ANCONA

FIMET

Photogrammetric stereoplottersAnalog 1900-1980)

Analytical (1980-1990)

Digital (1990.....)

RhADRhADby Studio Presta, Italyby Studio Presta, Italy

The easiest tool for simplest photogrammetric survey

RhADRhADby Studio Presta, Italyby Studio Presta, Italy

The easiest tool for simplest photogrammetric survey

1)

• RhADRhAD1. Import the image in RhadRhad

(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