4. CONCLUSIONS
The Rolandino dei Passaggieri Tomb has been surveyed
following traditional and unconventional photogrammetric
techniques. Numerical restitutions in monoscopic and stereo
mode have been produced, orthoimages have been created and a
virtual 3D model has been generated in VRML format. The
distances between check and control points have been measured
by means of two photogrammetric systems, adopting control
points and distances constrains to calculate the external
parameters or to scale the object model.
The distances, compared to those obtained be means of
stereoscopic skill and the topographic network, are
characterized of standard deviation contained by ± 1.6 сm, in
agreement with the photos scale factor.
The results from the experiment confirm, that simple and fast
photogrammetric techniques are able to completely meet the
requirements of cultural heritage documentation being
inexpensive and efficient in comparison to the traditional ones.
These alternative methods enlarge the use of photogrammetry,
even if elementary geomatic knowledge are still necessary to
solve problems related with the survey, the data processing, the
coordinates transformations etc. Besides verifications
concerning the real accuracy of the elaborates are always
necessary to complete the restitution works and to understand
their effective accuracy.
Virtual models can be easily generated even from
unconventional photogrammetric systems. These photo models
easily divulgate on the InterNet, permit animation and 3D
visualization, therefore today are fundamental tools for the
Cultural Heritage knowledge and documentation.