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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.
