期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B7
页码：1523-1528
出版社：Copernicus Publications
摘要：In recent decades, rapid rates of population growth and urban expansion affect local and regional ecosystems, climate, biogeochemistry, as well as food production. Ninety percent of urbanization will be concentrated in low-income countries. While timely information on human settlement distribution, location and size is more readily available for high-income countries, maps of settlements in low-income countries are often outdated, inaccurate or none existed. The main objective of the research is to improve understanding of the methodological and validation requirements for global urban mapping from low-resolution remote sensing data as a reference of fine resolution Landsat Enhanced Thematic Mapper (ETM+). This map was then compared against urban boundaries derived from ETM+ imagery and other six existed continental scale urban maps. The comparison highlights the map product using population density, MODIS and DMSP data with the reference of ETM+ was more accurate
关键词：Multi-spectral remote sensing; Validation; Image processing; Data Integration; Environmental monitoring
