International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004
into account, the orthophotograph we created is a more accurate
recording.
Figure 11. Orthophotograph of cloor moaic (left) and that with
overlay of drawing (right)
We also examined the possiblilty of creating a 3D model from
the orthophotographs of the floor mosaic. Another area,
depicting a tree and two birds, was selected for this attempt (see
Figure 12, left). Most of the tesserae of the leaves and the bird
on the left are missing and that portion is concave. Using PI-
3000 made it possible to model the details, (see Figure 12,
right), while a 3D model based on point-cloud data was not able
to model it. The resolution of the model is 1 mm.
D 4
Figure 12. Floor mosaic: 2D image (left) and 3D model (right)
S. CONCLUSIONS
We discussed several methods of creating high-quality 3D
models of cultural heritage objects. Unfortunately, no one
method can be applied to every situation and we need to select
the most appropriate method or combine several methods.
There are no strict guidelines for this selection. Instead,
practical experience and accumulated know-how is required to
enable everyone involved in researching and preserving cultural
heritage to record objects three-dimensionally, reconstruct them
as computer graphics model, and utilize the models for their
various purposes.
ACKNOWLEDGMENTS
The authors would like to thank the Research Group for
Byzantine Lycia for their support during the survey at the site
and offering materials.
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