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:2000
卷号:XXXIII Part B7(/1-4)
页码:843-851
出版社:Copernicus Publications
摘要:Means of producing state-wide mosaics using high-resolution satellite data (IRS-1C) are discussed with reference to Saxony in Germany. Special attention is given to optimisation of exhaustive image-data coverage taking account of data quality, recentness of data, and price. Strategies for georeferencing and attainable geometric correctness are discussed. The optimum scale for picture data of 5m-pixel resolution is 1 : 25,000 and the average geometric error is <0.8 pixel. A variety of algorithms for the computation of fusion products of high-resolution panchromatic and middle-resolution multispectral pictures are tested and an optimised strategy is developed. The handling of gigantic volumes of image data in Geographic Information Systems is then outlined. Four examples of how the data can be used in planning processes are cited: as a means of qualifying regional plans (by creating settlement masks), creating maps of city-block structures (for environmental monitoring), updating biotope maps for landscape planners and visualising landscapes in the context of construction approval for wind-power installations
关键词:High resolution images; Data fusion; Compression; Urban Objects; Visualisation