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：2006
卷号：XXXVI-1/W41
出版社：Copernicus Publications
摘要：The very high nominal ground resolution of OrbView-3 indicates the possible use for mapping up to the map scale 1 : 10000. For OrbView-3 the pixel size projected to the ground is not identical to the ground sampling distance (GSD) – the distance of the neighboured ground pixel centres. By this reason the possibility of object point identification has to be checked in relation to IKONOS-scenes having the same nominal GSD. But nevertheless IKONOS usually only is distributed with 1m GSD even if the physical GSD is 0.82m for nadir view, so the image quality of IKONOS may be better like for OrbView-3. Of course the comparison of just one OrbView-3 image with IKONOS has only a limited meaning because of a possible influence of the actual imaging conditions like sun elevation and situation of the atmosphere, but at least it is indicating the mapping possibility. A simple check of the effective image resolution can be made by edge analysis. This still has to be verified with a map generation to show the real limitations of object identification
