analog plotters. Most of activities in the creation of ortho-
photomaps and large scale thematic maps spheres is passing
after an expressive privatization of photogrammetric activ-
ities in the enterprise area. Owing to modern equipment in
specialized private firms also the operativeness of aerial
photogrammetric survey has increased. The remote sensing
activities are being developed mostly out of state admin-
istration as well.
The application of photogrammetric methods to creation
and actualization of DKM for the state administration needs
has remained only at the research and development level till
now. The solution results however brought valuable knowl-
edge and recommendations for successful applications in the
future [19].
In a research form there were applied the analytic and the
2D digital methods. From acquired results the main conclu-
sions at least can be pointed out:
— Photogrammetric methods should be instantly oriented
to selection, verification and determination of map
contents identical elements of the former cadastre of
lands, contemporary KM, and terrain - they represent
one of the best methods of identity verification by the
area.
The goal is to keep the KN map products continuity.
— For elimination error influence coming from different
identification levels of individual detailed points being
determined so in terrain as from aeroplane, for restric-
tion to minimum the beaconing before flight, and for
minimization surveying-in after restitution, there must
be utilized images at the optimal 1: m, scale. It is rec-
ommended to determine the maximal utilizable scale
figure magnitude by the empirical formula
A XY
0,025 mm
where A xy is the deviation in mm corresponding to
relevant class of required precision [10], i.e. the required
resultant value of mean coordinate error of points that
are determined.
mg
— If renovating the photogrammetric instrumental fleet, it
is recommended to replace analog plotters (at the pres-
ent time 19 instruments) by equipment for 3D digital
photogrammetry only, e.g. by the ImageStation system,
with direct output for the DKM database in DGN
format [20].
4. CONCLUSION
The result of the research and development project solution
is very useful and valuable without any doubt, although it
would mean only the initial step on the way to enforcing the
fully operational ISZK, and the digital cadastre of real
estates. Relatively in a short time it contributed to overcome
the backwardness of former operational practice behind the
situation in developed countries on the field of informatics,
and through this it created basic conditions at least, for
coming back also our branch into the Europe’s conditions.
720
It offered to operational practice the basic tools for creation
and management of databases, the filling of that is the
necessary condition of system functionating, and it repre-
sents the largest time consumption and charges of the whole
system. It secondarily enabled to state administration to
improve their services provided, already in this initial phase
[21].
In the next period the research and development in this
section should aim at further inovations of automated
system, which should enforce still the better consistency in
integration of the individual ISZK subsystems including the
management of descriptive and map parts of the KN, and
also ensure the direct access of users to the whole system
data.
REFERENCES
[1] Roule, M.: Re&ení vjzkumného projektu "Vystavba
AISGK" napoméha zlepSovat sluzby statni spravé i obéanim.
Solution of the research project "Establishment of the
ISGK" helps to improve services for state administration and
citizens as well.] GaKO 41, (83), 1995, No.3, pp.55-59.
[2] Roule, M.: Bulding Information System for Surveying
and Cadastre as a Component of the State Information Sys-
tem in the Czech Republic. Proceedings of the GEOMAT-
ICS 95 Conference. Ottawa, Canada, 1995, paper No. 81.
[3] Kostelecky, J., Podsklan, J., Vyzvalda, P., Zajícek, L.:
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[6] Kostelecky, J., Karsky, G., Podsklan J.: Popis databáze
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[7] CÛZK: Struktura a vÿménnÿ formât digitalni katas-
tralni mapy a souboru popisnych informaci katastru nemo-
vitosti Ceské republiky. [Structure and the interchange
format of the digital cadastral map and the descriptive
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[8] Soucek, Z.: Informaéni soubor nemovitosti - popis
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International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996
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