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# Full text

Title
New perspectives to save cultural heritage
Author
Altan, M. Orhan

CI P A 2003 XIX th International Symposium, 30 September - 04 October, 2003, Antalya, Turkey
3. ELECCION OF THE CAMERA
The used camera was a Pentax 645 belonging to the group of
the semi metric cameras. It has a glass badge in the focal plane
containing a reticule (badge Roseau) that serves to control the
film deformation.
Their format is 6 x 4,5 cm, ideal for the realization of work of
closed range Photogrammetry.
4. ELECTION OF TAKES
The statue is located on a pedestal of 2.5 meters, that they make
the overtaking of photos difficult.
Figure 5. Control Point
Figure 3. Dimensions of the statue
Exist two possibilities for the overtaking of photographic pairs,
four pairs to 90 degrees each one or three pairs to 120 degrees.
It can be observed in the figure 4.
—f
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/ ,, \ N
\
: mm \
• V* i
: W :
\
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N /
s /
X /
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N ✓
Figure 4. Election of takes
We have selected the option of 3 pairs for three motives:
1. For facility in the overtaking of pairs
2. Low number of control point
3. Zones without coverage of practically equal than the
another option
The distance to which you were carried out the takings was of 6
meters (distances hyperfocal). The scale of the photo is 1:134.
For the determination of control points, has created one
polygonal that he surrounds the statue. For the measurement of
the distances have utilized miniprisms.
RMS the Orientation interior (m)
Par
X
Y
z
1
0,002
0,001
0,002
2
0,002
0,002
0,001
3
0,000
0,003
0,001
Table 1. Errors of restitution
After the restitution of pairs, some zones have remained without
covering. They will take these their zones for an alternative
method.
Figure 6. Zones without coverage
5. CONTROL POINT
In each pair they have placed five checkpoints such and as it
can be observed in the figure 5.
6. METHOD OF OBTAINING OF ZONES WITHOUT
COVERAGE
The zones that could not have been restituted, will get obtain
for the radiation method. The radiation will be sold off as from
the points of the polygonal created for the obtaining of control
point.