The objective of using quickbird image in topographical map updating
Kometa missions were always launched from the Baikonur Cosmodrome in Kazakhstan on Soyuz launch vehicles into inclinations of 65º or 70º at the rate of one or two per year.
Applications: Remote sensing data acquired by “Kometa” spacecraft serves for a variety of applications, such as production and updating of topographic maps, production of larger scale maps, digital maps, DEM, land and forestry cadastre, land use control, water resources management, etc.
From the end of 1990s, with the successful launch of the first commercial high-resolution satellite, IKONOS, a new source of imagery has been available to the civilian spatial-data users and many proposals concerning the use of satellite images for map updating started to appear in literature [2–5].
There are several advantages of updating existing topographic maps using satellite images instead of aerial photos.
This article introduces theoretical aspects of our methods.
ABSTRACT: The geographic database producers need improved and faster updating methods for their topographic databases to fulfil the user's demand.
INTRODUCTION This work was conducted in the framework of project Geo Sat – Methodologies to extract large scale GEOgraphical information from very high resolution SATellite images.
Tenedório e-GEO, Research Centre for Geography and Regional Planning, Faculdade de Ciências Sociais e Humanas, FCSH, Universidade Nova de Lisboa, Portugal ([email protected], [email protected], [email protected]) A. Afonso National Laboratory for Civil Engineering (LNEC), Lisbon, Portugal ([email protected], [email protected]) A. Soares University of Lisbon, Faculty of Sciences, LATTEX-IDL, Portugal ([email protected], [email protected]) I.
Results show that the updating of the 1: 10000 scale cartography was always possible, while a rigorous updating of 1: 5000 scale cartography was possible only in few situations.Cosmos-2373, also known as Kometa 20, was launched on Sept.29, 2000, the last of the Kometa series spacecraft.The former leads to urban expansion, and the latter to intensification.The urban environment is a physical representation of human activities and as such is subject to measurement.
Search for the objective of using quickbird image in topographical map updating:
First of all, a single satellite scene covers a large area (from less than 65 km for Quick Bird). Moreover, with few exceptions (e.g., EROS-B), satellite data are multispectral, so they can be also used for thematic mapping purposes (this also applies to the photogrammetric digital cameras such as Leica ADS-40 or Z/I Imaging DMC).