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New perspectives to save cultural heritage
Altan, M. Orhan

mlar ve
O. Akcay, M. O. Altan
ITU, Civil Engineering Faculty, 34469 Maslak Istanbul, Turkey - (akcayoz, oaltan)@itu.edu.tr
WG 1 - Recording, Documentation and Information Management
KEY WORDS: GIS, Photogrammetry, Databases, Photographic, Recording, Documentation, Video, Panorama
Recently, panorama have become widespread by technological development on digital image. Investigation is focused on panorama
by photogrammetry and image processing at last decade. Especially, panorama is useful for envision of virtual tours and travels. In
the research, possibility of transferring of panoramic imaging to information system was investigated. Then an information system
has designed towards tourists. It’s called as Tourist Information System (TIS). Historical Peninsula of Istanbul was chosen as pilot
area for TIS. First, the maps which represent pilot area were scanned. Therefore, they were obtained in digital form. Scanned maps
were georeferenced in TopoL software and used as basement of information system. In the information system, four vector layers
were designed. First layer represents transportation, second one represents accommodation, third one represents historical
monuments and last layer represents panoramic image. As depending on types of the layers, they were digitised as polyline, node and
area on georeferenced images (raster data). Photographs which were taken by Nikon Coolpix 950 Digital Camera were used in order
to create Panorama. The photographs were taken on Sultanahmet Square which is the historical place in Istanbul. To determine
coordinates of point, where photos were taken, were measured by handheld GPS. As a result, an Tourist Information System was
designed and video image (panoramic image) was transferred to TIS as a new document.
TIS was build with TopoL GIS Software. Four layers were
designed to present information system. Figure 1 illustrates the
all layers.
At last layer, video documentation is georeferenced. Nodes
determine each Video documentation (panoramic image) at
fourth layer.
First layer represent transportation. The layer is digitised as
node and line. Lines show bus and tramway lanes at historical
peninsula. Nodes also show the stops which belong to bus and
tramway lanes.
Second layer was designed to respond accommodation need. All
of hotels digitised as node at the peninsula.
Third layer includes historical monuments. At the project, four
well-known monument were chosen. These are Hagia Sophia
Museum, Blue Mosque, Topkapi Palace Museum and
Suleymaniye Mosque. The aim of third layer is to introduce
monument’s various sides to tourist.
^. Video documentation
Historical monuments
-► Accommodation
1. Vector layers
At first layer lines were related with data for transportation.
Database includes relationship among bus and tramway number,
bus stop names, avenue and region names, length of lane,
possible main stop bus names which were connected to lanes.
Nodes also represent same database with lines for bus and
tramway stop.
Second layer has database for hotels. Database has a lot of
attributes about hotels. Each hotel has data which were hotel
name, star number, venue, price, telephone, address etc.
Historical monuments’ database was set up a bit different from
preceding layers. Different kind of files were used as data. Each
file introduced monuments. Extension of the files were doc, txt,
jpg and xls format. Every monument has seven files. First file
was built in txt format. It gives general information about
historical building. Following four files demonstrated picture of
monuments which were taken from different aspects. Sixth file
has xls extension. Xls file explain specific visit possibilities.
Last file has doc extension. It has information about
architectural attributes of monuments.
The files were copied to project directory. File paths were
entered as data (Table 1). Therefore links were created between
data and database by TopoL. To provide link, NDI files which
are capable of linking to TopoL were coded. After the NDI files
were coded, they were saved as P0001.NDI for regional
graphic. TopoL isn’t capable of defining other names. The name
should be L0001 .NDI for lines and B0001 .NDI for nodes.