bul 2004
nr mt ét tne
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part BS. Istanbul 2004
2. 3D RECONSTRUCTION OF THE MARKET GATE
OF MILETUS
2.1 Reconstruction of architraves
The architrave of the market gate consists of many small edges
and a lot of very detailed ornaments like leaf mouldings, festons
and rosettes. For reconstruction of the architrave the
photogrammetric measurements of the different edges were
used to create a profile line (vertical cross section) which was
extended to obtain a solid surface of the architrave (Figure 3).
The horizontal dimensions were again derived from
photogrammetric data. The manifold ornaments were excluded
in this first phase of reconstruction
Figure 3. Shape of the reconstructed architrave
After completion of the architrave by adding some main
elements like brakets it was integrated in the final building
model (Figure 4).
2.2 Reconstruction of the ceilings
The market gate has two storeys each with a complex coffered
ceiling. Because of symmetry two basic types of coffers (Figure
5) had to be reconstructed to compose the complete ceilings.
Figure 4. Completed architrave integrated in the final model
The exact position of these basic elements were determined by
means of the upright projections derived from the digital
photogrammetric data. Again the numerous ornaments were not
integrated in the model. One of the resulting reconstructions of
a ceiling is shown in Figure 6.
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Figure 5. Example of a basic type of a coffer
Figure 6. Upright perspective of the reconstruction of the upper ceiling