International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part BS. Istanbul 2004
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Figure 9. Residuals in elevation between kinematic GPS points |
and photogrammetric edited DTM in the temenos area | The w
(GPS minus photogrammetry, value in m). | in arc
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3.2 Orthomosaicing | benefi
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ATE products are suitable for the generation of orthophotos and | Digita
orthophotomosaics, very interesting tools for documentation of DT
and conservation of Cultural Heritage due to their capability to | tool f
combine metrical information with a qualitative and | tests i
photographic description of the objects. potent
For the studied site, as already underlined, a post-editing | specia
process of the photogrammetric DTM was however necessary in | every
areas with particular problems of homogeneous texturing or data a
with sharp height variations. The orthophotos, characterized by | fundaı
a ground pixel size of 20 cm, were obtained by using bilinear | the ir
transformation as resampling method, and, in a unique step, | orthor
mosaicked together obtaining the orthophotomosaic showed in | This 1
figure 10, relative to the area surrounding the ‘emenos and the | to the
dromos. in Cul
The availability of large scale aerial imagery could be a mean to |
integrate and complement terrestrial survey. The comparison
(figure 11) between orthophoto and vector representation |
coming from a topographical terrestrial survey conducted by the |
archacologists, both into the same reference system, confirm a Aber,
very good agreement and furthermore exemplifies the | forma
possibility of recognizing by the image the structures not easily high r
identifiable by a terrestrial survey (see in the middle-right of the | XXXI
image). Conversely, it must be stressed that direct on-the-field Fieurc 10. Orthophotomoseic for the ara | |
examination of semi-buried structures by the archaeologist surreundins thezenenos andithe dranos: Barati
could provide in other cases a better interpretation. T | Digit
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