International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B4. Istanbul 2004 
meet standards for 1:25000 mapping scale. First quality tests 
confirm this assumption. The prerequisite for achieving 
required DTM quality was to use sophisticated procedures for 
terrain surface reconstruction by using contour data and all the 
other available information. 
However, there are still many things to do in order to finish the 
production of DTM for Serbia and Montenegro and to put it 
into full exploitation. These include: 
- Improvement of algorithms for geomorfological 
elements extraction and terrain surface reconstruction 
- . Thorough DTM quality assessment 
- Design and building of country wide DTM database 
- Specification of procedures for update and initial 
updating of country wide DTM database 
- Specification and development of standards and 
procedures for DTM data distribution, etc. 
Finally, it should be emphasized that key objective of this 
project was to satisfy urgent requirements of great number of 
prospective users, but also to initiate further developments and 
activities in this area. This should include deployment of other 
DTM acquisition technologies such as LiDAR, InSAR and 
digital photogrammetry. These technologies should be used for 
updating existing one or building completely new country wide 
DTM for Serbia and Montenegro. 
REFERENCES 
References from Journals: 
Thibault D, Gold, C., 2000. Terrain Reconstruction from 
Contours by Skeleton Construction. Geolnformatica, 4, pp. 
349-373. 
References from Books: 
Tang, L. 1992. Automatic Extraction of Specific 
Geomorphological Elements from Contours. Geo-Informations- 
Systeme, Wichmann, Vol 5, No.3, Karlsruhe, pp. 20-26. 
References from Other Literature: 
Aumann, G., Ebner, H., Tang, L., 1990. Automatic Derivation 
of Skeleton Lines from Digitized Contours. In: /SPRS 
Proceedings of the Symposium Tsukuba, Commision IV, Vol. 
28., Part 4, pp. 330-337. 
Heitzinger, D., Kager, H., 2001. High Quality DTMs from 
Contourlines by knowledge-based classification of problem 
regions. In: /SPRS Proceedings of the International Symposium 
on "GIS — Between Visions and Applications", Commision IV, 
Stuttgart. 
Hochstoger, F., 1996. Software for Managing Country-Wide 
Digital Elevation Data. In: The International Archives of 
Photogrammetry and Remote Sensing, 18th Congress, Vienna, 
Commission II, Working Group 3, Vol. 26. 
[naba, K., Aumann, G., Ebner, H., 1988. DTM Generation 
from Digital Contour Data using Aspect Information. In: The 
International Archives of Photogrammetry and Remote 
Sensing, 16th Congress, Kyoto, Commision III Vol. 27, Part 9, 
pp. 101-110. 
Peng, W., Pilouk, M., Tempfli, K., 1996. Generalizing Relief 
Representation Using Digitized Contours. In: The International 
Archives of Photogrammetry and Remote Sensing 18th 
Congress, Vienna, Commision IV, Vol. 21., Part B4, pp 649- 
654. 
Schneider, B., 1995. Adaptive Interpolation of Digital Terrain 
Models. In: Proceedings of the 17th International 
Cartographic Conference, Barcelona, Vol. 2, pp. 2206-2210. 
Schneider, B. 1998. Geomorphologically Sound 
Reconstruction of Digital Terrain Surfaces from Contours. In; 
Proceedings 8th Symposium on Spatial Data Handling, 
Vancouver. 
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