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THE HUNGARIAN DIGITAL ORTHOPHOTO DATABASE AS A BASIS FOR 3D VISUALISATION OF 
WORLD HERITAGE SITES IN HUNGARY 
Gy. Ivän®, P. Winkler“, G. Remetey-Fülópp" 
? Institute of Geodesy, Cartography and Remote Sensing, H-1149 5. Bosnyák tér, Budapest, Hungary — ivan@fomigate.fomi.hu, 
peter.winkler@rsc.fomi.hu 
^ Ministry of Agriculture and Rural Developments, Dept. of Lands and Mapping, H-1051 Kossuth tér 11., Budapest, Hungary — 
gabor.remety@fvm.hu 
KEY WORDS: Spatial Information Sciences, Cultural Heritage, GIS, Visualisation, DEM/DTM, Orthoimage, 
ABSTRACT: 
As a result of the ,,Aerial Photography Program of Hungary, 2000", the country was covered by 1:30 000 scale aerial photographs. 
In the frame of the National Program of adopting the EU *Acquis communautaire", a high-resolution (5m grid) DEM has been 
developed from 2000 to 2003 for the whole area of Hungary (93,030 km?) by vectorizing the contour lines of 1:10 000 topographic 
maps. Based on the results of these two programs, the Hungarian Digital Orthophoto Program was launched in 2002 and finished in 
the first half of 2003. Having a full coverage of Hungary by 0,5 m resolution digital orthophotos and high resolution DEM, now we 
are having the possibility of 3D visualization of any existing World Heritage Sites and support the documentation of future WHS 
applications of Hungary. Using the high accuracy digital orthophoto merged with cadastral maps and having the intranet system of 
the Hungarian land offices (TAKARNET) operationally running since April 2003, one can easily add information about the owners, 
users and legal status of parcels of the area of interest to the orthophoto and cadastral map based GIS of any of the WHSs in 
Hungary. In this paper, the authors describe the technical characteristics of the procedure and the use of products in cases of the 
World Heritage Sites listed for Hungary. 
e Digital Orthophotos (0,5m resolution), 
INTRODUCTION e Satellite images, 
e 3D visualisation (based on DEM, topographic 
During the last few years there has been a large development maps, orthophotos etc.), 
in data infrastructure in the Hungarian Land Management e Connection of geometric data between different 
Sector. In 2000 the integrated land information system of the geodetic reference systems, 
district land offices started to work, the *Aerial Photography e — Integrating of the mentioned data into a GIS. 
Program of Hungary, 2000" was accomplished. Beside the 
aerial photography program the large resolution (5m) Digital In the paper we will describe the technical characteristics of 
Elevation Model of the country has been developed. In 2000 the different datasets and the procedure of the utilization of 
the raster datasets of the topographic base maps (scale 1:10 these products in the case of the World Heritage Sites of 
000) was made too. In the frame of the Hungarian Digital Hungary. 
Orthophoto Program a full coverage of 0,5m resolution 
digital orthophotos was launched in 2003. The large scale 
cadastral maps of the rural areas of the settlement also WOLRD HERITAGE SITES OF HUNGARY 
available in raster or vector form for the whole country. 
Hungary has the following World Heritage Sites, with the 
These databases has been used for the elaboration of Land date of acceptance: 
Parcel Identification system (LPIS) of the Integrated e 1987: Budapest: the Banks of the Danube, the Buda 
Administrative and Control System (IACS). IACS is the Castle Quarter 
system for the management and control of the agricultural « 1987: Old Village of Hollókó and its surroundings 
subsidies derived from the European Union. There are « 1996: Millenary Benedictine Abbey of 
different usage of these large data infrastructure now. Our 
clients use these data in different sectors of the economy (e.g. 
road planning, water management, local governments etc.). 
Pannonhalma and its Natural Environment, 
e 1999: Hortobágy National Park — the Puszta, 
e 2000: Early Christian Necropolis of Pécs 
We wanted to find different applications of these integrated (Sopianae), : : o 
data, and one of the possible solution was the integrated GIS e 2002: Tokaj Wine Region Historic Cultural 
management of the World Heritage Sites of Hungary. In Landscape, dy 
Land Management Sector we are able to collect and e 2002: Budapest: extension with the Andrassy 
maintain: Avenue, ; 254 
e — Land registration data (e.g. land records, ownership e 1995,2000: Cross-border World Heritage Site in 
i E Hungary and Slovakia: Caves of Aggtelek and the 
and other rights on land), 
e Cadastral map data, integrated with land 
registration data (scale: 1:1 000 — 1:4 000), 
e  Topographic data (1:10 000 scale raster dataset of 
topographic maps), 
e Digital Elevation Models (5m resolution), 
Slovak Karst. 
These World Heritage Sites, except of the Slovak Karst, is 
covered by the mentioned products. 
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