In: Wagner W., Szekely, B. (eds.): ISPRS TC VII Symposium - 100 Years ISPRS, Vienna, Austria, July 5-7, 2010, IAPRS, Vol. XXXVIII, Part 7B 
Therefore, there is always the task of creating and updating 
topographic maps. 
At the moment on the world map are practically no white 
spots - topographic maps covering almost the entire surface of 
the planet's land, although not all are equally detailed. The 
territory of the Azerbaijan Republic is fully covered with maps 
in scale 1:25000, and about two-thirds of the country - in scale 
1: 10000. Therefore, development of topographic maps re still 
required less often - only in case of radical changes. 
As the primary material for topographic maps have 
traditionally been used aerial photographs. With the advent of 
satellite remote sensing of Earth equipped with optical 
electronic sensors by high-resolution the satellite imagery could 
compete with aerial photographs as source material for large- 
scale mapping. The performance characteristics of modem 
space images suitable for mapping scale of 1:5000 and smaller 
(Savinykh, Tsvetkov, 2001); despite the relatively high cost of 
these photographs, they may be cheaper than aerial photography 
for mapping small areas. Space survey is also preferable in 
cases where aerial photography is difficult in organization, for 
example, for mapping of major cities and in the boundary areas; 
in addition, it more operational. 
Over the past few years received a considerable amount of 
data space imaging, performed with the spacecraft QuickBird 
and WorldView - 1 with a resolution of 50-70 centimeter 
(Elerdova, 2009). In the present time space images from these 
spacecrafts completely cover the Earth globe. This allows the 
company DigitalGlobe (USA) to develop and offer various 
categories of users worldwide, including the CIS 
(Commonwealth of Independent States) countries, projects of 
direct access to archived data. One of these services are 
ImageConnect and ImageBuilde, providing users with direct 
access to high-precision data from the satellite QuickBird and 
WorldView-1. The main advantage ImageBuilde is the ability to 
integrate satellite imagery with vector data user. 
Cosmic digital images opens up new possibilities: reduction 
of the cost of repeated surveys, the increase in area coverage 
areas, reducing the distortions associated with the relief. In 
addition, it simplifies the generalization of the image on the 
small-scale maps: instead of consuming simplify large-scale 
maps can be immediately used medium-resolution satellite 
imagery. Therefore, surveying from space can become the main 
method of updating topographic maps. When to select images 
for mapping to have to account the graphical accuracy of maps 
(0.1 mm). For example, the images should have a spatial 
resolution better than 10 m for maps of scale 1:100000. 
Accordingly, the images Ikonos (USA) with a pixel size of 1 m 
can be many elements of the content maps of scale 1:10000 and 
smaller (http:// www / sovzond.ru /). However, some elements 
of topographical maps, such as free-standing trees, the width of 
the rivers in the map scale, etc., require more detailed imaging. 
When you update maps applied only change the contours of 
the elements, and the mapping to determine the exact position 
of these elements. Therefore, for the preparation of topographic 
maps required space images of higher resolution than to update 
them. 
Work on updating topographic plans carried out in 
several stages: an initial set of data by vectorization the source 
material, binding and orthophototransformation space image, 
image decoding and updating of data, field update. 
3. CONCLUSIONS 
Through remote sensing market expansion, new products, 
especially in the category of products of high industrial 
expansion, the use of space imagery in the works on 
cartography and land is becoming more affordable and 
widespread. Reducing the cost of remote sensing data has led to 
the fact that for the production of quality outputs a high degree 
of accuracy is not required enormous time and material costs. 
REFENCES 
Elerdova, M., 2009. Using remote sensing data from space in 
geoportals and LBS-services. Moscow, Geoprofi, 2, pp.20-23. 
Gruenberg, G., Lapkina, N., and others, 1991. Cartography 
with the basics of Topography. Education, Moscow, 368 p. 
Savinykh, V., Tsvetkov, V., 2001. GIS analysis of remote 
sensing data. Kartgeotsentr-Geodezizdat, Moscow, 228 p. 
http:// www / sovzond.ru /