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HUNGARY 
NATIONAL REPORT 
FOR 
PHOTOGRAMMETRY AND REMOTE SENSING 
1992 - 1995 
Prepared for the Hungarian National Committee for Photogrammetry and Remote Sensing 
by 
Gábor Mélykuti 
President of HNC of IRPRS 
Péter Winkler 
Secretary of HNC of ISPRS 
ABSTRACT: 
The National Report of Hungary outlines routine activities and new trend in photogrammetry and remote sensing 
during the period 1994-1995, with special emphasis to the economical changes in the country in this period. The 
activities in the field of photogrammetry and remote sensing are described according to the fields of activities of ISPRS 
Commissions. 
KEYWORDS: Hungary, National Report, Applications, Institutions 
The past 4 years have brought important changes in 
the socioeconomic and scientific areas in Hungary. 
The environment and conditions of our profession 
activities have been changed totally. The state 
monopoly over copyrights, state secrecy protection 
and surveying activities has been minimized. 
Consequently, privatization created flexible and more 
suitable conditions for operation and reaching the 
development goals. Photogrammetry and remote 
sensing technologies and applications have suffered 
decrease in state financing due to the fact that the 
applications and results obtained from the 
implementation of these technologies are rather 
investment of infrastructure than investment 
generating profit. During the early nineties, beside 
some few local projects, organizational modifications, 
influence of foreign capital, some projects ordered by 
foreign partners, and the aid programmes (e.g. 
PHARE etc.) played the most important role in 
keeping photogrammetry and RS profession alive. 
During the last two years the strategic importance of 
photogrammetry and RS became more evident. Some 
very high quality digital photogrammetric and remote 
sensing equipments have become available to be 
used in state and military surveying and in institutions 
of higher education. All these will bring suitable 
environment for the development of photogrammetry 
and RS technology, and will create the required basis 
for education and research in this field. 
Attained results related to the commissions 
activities 
Commission | - Sensors, Platforms and Imagery 
Airborne SLAR and  2-frequency microwave 
radiometer were developed. Good quality data were 
obtained by both the radar equipment and the 
microwave radiometer. The results of these 
developments were utilized and published within the 
frame of international projects. Modification of 
stereocomparator and software development for an 
analytical plotter was carried out. This resulted higher 
level of numerical plotting and helped the aims of 
education. 
31 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B6. Vienna 1996 
The National Remote Sensing Centre continued its 
activity as national distributor of high resolution 
satellite images in purchasing, processing and 
archiving of such type of data. Within the frame of this 
activity, besides of well-known Landsat TM and SPOT 
data, new products like ERS-1 SAR data, the indian 
IRS data processing and distribution have been solved 
in both experimental and operative levels. 
For the purposes of aerial photography, the 
photogrammetry and RS community in Hungary has 
access to one of the-most modern aerial camera with 
forward motion compensation. Unfortunately, the 
aircraft used to fly this modern camera is an old-type 
one with low flying height.(max. 3500 m) capacity, 
thus the state surveying authority doesn't have access 
to an aircraft with better performance. This makes 
difficult to acquire small scale imagery suitable for 
topographic and remote sensing applications, but 
there are some indications that the airplane problem 
may be solved. The quality of aerial photographs are 
various, and during the last few years there is no 
noticeable improvement in the photographic or 
processing quality. We hope, that the effect of 
privatization will result significant improvement in 
quality of aerial photography. 
We developed technology for hand-held colour aerial 
photography. A colour photogrammetric 
photolaboratory was established. 
The decrease of level of secrecy has opened new 
possibilities for application of aerial photography. Lot 
of experimental studies being done for application of 
digital cameras. Transformation of analogue products 
to digital imagery with high resolution (7.5 mm) 
equipments exist and being used in Hungary too. 
Commission Il - Systems for data processing, 
analysis and presentation 
The RDI photogrammetric data management 
equipment was developed for numeric 
photogrammetric processing, together with the ITR 
data management software by hungarian experts. The 
RDI and ITR made it possible to connect the 
conventional photogrammetric instruments to 
computers and the online, interactive operation of 
digital map production.