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：2009
卷号：XXXVIII-4/W10
出版社：Copernicus Publications
摘要：Raster format data, mainly images and digital elevation models, is a very important spatial data source, as can be seen clearly from Google Earth. In this paper, we discuss the problem of efficient storage and visualization for huge raster data. The developed solution is a seamless integration of GeoGlobe system and Oracle GeoRaster module, where the latter stores raster data and the former visualizes them through network. We design extensible integration architecture and efficient database structure. We also discuss some key implementation issues, including invalid edge elimination, fast visual building and identification conversion. Our demo system and comparative experiments show that the integration combines the strength of GeoGlobe system and Oracle GeoRaster module, and therefore is a valuable network application of raster data, especially under internet environment
关键词：Raster Data; GeoGlobe; GeoRaster; Google Earth; Visualization; P yrami
