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CIPA 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey’
Is now possible using DTM and orthophoto to build a three-
dimensional metric model of the archaeological site, and to
navigate into the model itself. We have then used the
orthophoto for image enhancement filtering, to emphasize
archaeological traces, as will be described in the next chapter.
Figure 5. The DTM with orthophoto superimposed. The
integration of altimetric and photographic data gives
archaeologists a more readable model.
2.3 DTM analysis
DTM analysis makes evident the position and the shape of
some buried buildings. At first, is clear that some low zones
belong to the Casa de Taracena, and are underground premises
and some cisterns. In the North direction we find a micro-relief
with the same orientation of the Casa de Taracena, that fits the
structures identified in 1995.
Then, a very interesting data is the presence of an other micro
relief in the South direction, that is parallel with the one
discovered in 1995. This is an other building alignment that
ends in the Paredejas zone, where are preserved the ruins of an
“opus caementicium ” building.
A first alignment of regular buildings was identified by Gillani
in 1995; these are probably public buildings. He found also a
possible extension between Las Paredejas and the macellum.
Del Olmo in 2001 identified the same buildings which he
hypothesized as a forum or market-place, due to the regularity
of the building shape and the open space between the two
alignments. This forum is smaller than the other already
excavated. However he did not identified the second building
alignment near Las Paredejas, where he localized the extension
of a street that finishd in the forum of the Claudian epoch.
Thanks to DTM analysis we can note that the area between the
two parallel building alignments is lower than the micro-reliefs
that enclose it. So the micro-reliefs correspond to the ruins of
the buildings, and the lower space to the market-place. Then,
the analysis of the image and of the stereoscopic model has
shown that in this area there are not building traces. Therefore it
is an open area that maybe indeed a big square or a forum.
In the profile represented in fig. 6 we note five interesting
micro-reliefs:
Figure 3. The DTM RMS values. The greyscale indicates the
RMS values; higher values are darker and identify
badly estimated DTM zones.
Figure 4. The DTM of the area between Casa de Taracena and
Termas de Los Arcos, with 1 m resolution and the
orthophoto superimposed.
2.2 Orthophoto
The next step is the orthophoto computation of Clunia plateau
by using RSI ENVI software.
