CIPA 2003 XIX"' International Symposium, 30 September-04 October, 2003, Antalya, Turkey 
the 
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tal map 
bundle 
a photo 
scanner with a resolution of 600 dpi (mean pixel at the ground 
of 20 cm) so as to allow the production of the orthophoto in a 
scale of 1:2000. 
The digital map has been integrated, by CSI-Piemonte, with 
some heights that were not originally present (bridges, new 
buildings, ...): an example of the result can be seen in fig. 4a. 
The production of the orthophoto required a preliminary setting 
up, which allowed the previously described developments to be 
made to the software and to test it on a test field (18 maps for 
about 2000 ha). This test field was particularly critical as it 
includes: the dense built up area of the historical centre of the 
town, monumental buildings such as the Mole Antonelliana 
and the Gran Madre Church (see fig. 7), bridges over the Po 
and Dora rivers and the residential area in the Turin hills. 
Figure 8. The true orthophoto of the Mole Antonelliana (a) and 
its superimposition to the map (b). 
A prototype (greatly enlarged) of what was obtained in 
correspondence to the Mole Antonelliana (a) and its 
superimposition to the map of the same area (b) are shown in 
fig. 8. In similar complex cases, it is necessary to integrate the 
already existing digital map with an ad hoc restitution of some 
missing elements of the monumental structure so that the 
DDEM describes it faithfully (see fig. 9). The resulting correct 
orthoprojection and the perfect adherence with the map can be 
noted, these being results that could never have been obtained 
with conventional orthoprojection such as that available from 
any commercial software that can be found on the market. 
Other significant examples (the Gran Madre Church and the 
Holy Shroud Cathedral) are shown in fig. 10. 
Figure 9 - Integration of the already existing map with the 
resti-tution of some relevant elements of the Gran Madre 
Church 
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