) 2
1t
=
se
BY.
be unfit .Experimental work demonstrated
that the accuracy of final results increa-
ses two or three times if.empirical weig-
hts are used.
It shoud be pointed out that important
achievements were. made in the field of
treatment and adjustment of measurement
information in geodetic and photogramme-
tric networks when using the theory of
probability and mathematical statistics.
Consequently when we. have HARDWARE and
SOFTWARE and in this way one can normally
work.
CLOSE-RANGE PHOTOGRAMMETRY
It was necessary to carry out complex
inventory of the most valuable historical
architectural monuments,to do research
work in future as well as to aid the res-
toration in I969 a research Laboratory of
Engineering Photogrammetry was established
at Vilnius University and I976 at The In-
stitute of Preservation of Monuments the
Laboratory of Architectural Photogramme-
try was founded.
The first laboratory is occupied with
provision of photographic data and complex
inventory to the creation of photogramme-
tric archives of valuable historical archi
tectural monuments.The latter laboratory
is mainly concerned with the provision of
photogrammetric data to the architects -
restorers,necessary for the preparation of
restorative designs.In a period of rather
short time the complex inventary of the
old castles of Vilnius,Trakai,Birzai,Medi-
dinkai,Kréva,the ensembles estates,the an-
cient etnographic villages was carried out.
The plotting of the ancient towns was made
by the architectural laboratory and the
front elevation drawings were plotted to
a scale I:100 and the line drawings of de-
tails were-made to an enlarged scale 1:20
or 1:10.
Since I980 in both laboratories worked
out automated photogrammetric systems
(APMS) for surveying small objects such
as architectural monuments,landscapes and
geological formations (architectural en-
sembles,archeological objects,slashing
coasts of various waterubodies,travelling
dunes,etc.).The main base for the systems
is photocameras,stereacomparators,PC,a
97
numerical coordinatograph.
On the basis of these systems the
first attempts to organize the establish-
ment of digital photogrammetric archives
of cultural monuments were made.But rea-
lization of this idea is limitted by the
possibilities of the technical base avai-
lable.
Combination of aerial and terrestrial
photogrammetry opens wide possibilities
in surveying archeological heritage to
to the enviroment and enables to evalu-
ate properly their protection.
ACTIVITIES OF THE NATIONAL COMMITTEE
The birthday of the Lithuanian Commit-
tee for Photogrammetry and Remote Sensing
is said to be 1983 there was held first
conference on the problems of close-range
photogrammetry; they were ihe following:
I. The application of geodetic and pho-
togrammetric methods in research of cul-
tural and natural objects // Allunion /
republican conference Vilnius .1983 ;
2. The problems of cartography of cul-
tural and natural monuments // Allunion/
republican conference Vilnius. .1989 ;
3. The architectural photogrammetry //
International conference .Vilnius.1I989.
BIBLIOGRAPHY
The fundamental books and papers con-
cerning photogrammetry and remote sensing
including treatment of measurement infor-
mation.
Books
Vainauskas,V. Photogrammetry (in Lithua-
nian).Science.I977.P.216.Vilnius.
Skeivalas,J.M. Mathematical treatment of
geodetic measurements (in Russian).Nedra.
I1991.P.160.Moscow.
Papers
Vainauskas,V.V. To the prediction of ac-
curacy of aerophototriangulation esta -
blished on optical-mechanical devices
(in Russian) // Geodesy and cartography.
1956 .No.4.P.L14-21 Moscow.
Vainauskas,V.V. Application of multiin -
tersections / resections in photogramme-
try (in Russian) // Geodesy and cartogra-
phy.1957.No.7.P.13-I18.Moscow.
Vainauskas,V.V. Multistrip planimetric