hul 2004 
  
M 
A! 
sai 
une 
   
# 
TT ma 
age V., 
dels for 
uter & 
?ress 
roach to 
texture." 
Sensing, 
) “ESRI 
Phillips, 
A ddison- 
Building 
cts from 
129-138 
ics" ,2nd 
Building 
of the 
ormation 
PREPARATION OF ORTHOPHOTOS FROM IKONOS IMAGERY FOR CADASTRE 
BASE MAPPING OF NAKHCEVAN AUTONOMOUS REPUBLIC TERRITORY 
Emil.R. Bayramov, Rafael. V. Bayramov 
R.I.S.K. Company, GIS Expert, Azerbaijan — émilb@risk.az 
Baku State University, Doctor-Docent, Azerbaijan- bgurafael@yahoo.com 
  
KEY WORDS: Triangulation, DTM, Multispectral, GPS, GIS, Ortho-photo 
ABSTRACT 
In 1996 Azerbaijan had started process of the scaled land reforms after legal base establishment. On the first stage 2020 former 
collective farms and state farms with 19000 sq. km of agricultural lands were broke up. Small part of the total state farms was kept as 
state property for the pedigree seeds and animals. As a result of first Land Reform first stage 870247 families became proprietors of 
the 3426239 of land parcels. Next stage of Land Reform continued by privatization of rural settlements. After municipal property law 
acceptance Total Land Fund of 86600 sq km has been divided to: State form of property — approx. 38'000 sq km (44,2 %), Municipal 
— approx. 27'000 sq km (31,4 %), Private - approx. 21'000 sq km (24,4 %). 
1. INTRODUCTION 
The main objectives of the research is preparation of 
Orthophotos, Stereo and Digital Terrain Models in WSG84 and 
the local coordinate reference system by means of most 
modern softwares and developed applications for Cadastre Base 
Mapping. The object of the research was the territory of 
Nakhcevan Autonomous Republic. Total area of the territory is 
5 363 sq. km where more than 60% of territory is above 1000m. 
Uv PHYSICAL MAP OF 
NAKHCHIVAN PROVINCE 
   
Totai Area - 5363 sq.km 
Elevation less than 1000 m - 36,69% 
Elevation more than 1000 m - 63,31% 
Elevation more than 2000 m - 15,01% 
Elevation more than 3000 m - 1,05% 
Figurel. Dynamic of Relief in Nakhcevan 
Source materials used for orthophotos, stereo models and DTM 
preparation are represented below: 
Standard Stereo (EPIPOLAR) - Pan-Sharpened Multispectral 
(PSM) RGB - True Color (3 bands, 1 file); Standard Stereo 
(Map Projection: UTM38N) - Panchromatic; Standard Stereo 
(Map Projection: UTM38N) - Pan-Sharpened Multispectral 
(PSM) gray-scale files (4 files, 4 bands) 
For preparation of DTM and stereo features extraction were 
used epipolar standard stereo products which were previously 
triangulated to reach Horizontal — 1 m and Vertical — 2m 
accuracy by means of SocetSet MST software RPC 
(geometrical model of Ikonos2 sensor) correction. As a result of 
first triangulation were acquired correct stereo models 
(precision stereo). Further DTM is being generated by means of 
SocetSet ATE software and edited by SocetSet ITE and Erdas 
Imagine Stereo Analyst Application. Afterwards acquired DTM 
is going through special sophisticated mosaic and quality 
control process based on ArcObjects developed application. 
DTM characteristics: Resolution - 5 m, Horizontal Accuracy — 
5m, Vertical accuracy — 2m. 
On the forth stage of the process so called Map Projection 
product consisting of Multispectral bands (including red, green, 
blue and near infrared bands), covering the same area as 
epipolar is being triangulated by the same GPS measured 
ground control points and orthorectified by means already 
prepared and checked DTM. Orthorectification process is being 
performed by SocetSet Orthorectification module. Above 
mentioned developed applications let check ortho-photo 
accuracy too. Horizontal accuracy of Ortho-photo — Im 
(RMSE). As a result, all ortho-photos and DTMs are being 
reprojected to local coordinate system. In addition DTMs are 
being recalculated from WCS 84 to Baltic Sea vertical datum. 
Final stage is the partitioning of Ortho-photos by 10000 map 
sheet where mosaic process for orthophotos has very significant 
role. 
2. CONCLUSION 
Ortho-photos, Stereo and Digital Terrain Models are the 
important source of extraction, update and comparison of data 
in daily functioning of Cadastral Information Systems, taking 
into account the usage of Multispectral Ortho-photos for visual 
identification of property and calculation of its 2D geometrical 
parameters. Advantage of the multispectrality for better 
classification/identification of the property and land use 
information gives possibilities for Land Management Purposes 
too. Use of DTM and its derivatives for quality, cost evaluation 
and hydrological aspect. Stereo models give additional 
capabilities for visual identification of the properties and 
calculation of 3D geometrical parameters of buildings, fences 
with 1m accuracy. Approximately 210,000 land parcels and 
72,000 house plots are transferred from existing legacy 
reference onto the base maps. 
REFERENCES 
Kraus K. (1997). Photogrammetry, Vol. 2, Advanced Methods 
and Applications, Published by WB-Druk, Germany 
ACKNOWLEDGEMENTS 
Agriculture Development and Credit Project was funded by 
World Bank Credit