Research on the storage and management system for large amount of multi-sources raster images based on GIS

摘要

Diverse data acquisition methods, such as airborne, Unmanned Aerial Vehicle (UAV), and space-borne sensor bring in large volumes of raster image data. For rapid decision making based on those multi-source raster data, an effective and efficient storage and management system is necessary. This paper mainly focuses on how to design and implement flexible interfaces for GeoRaster. The raster data and their metadata in our work are all stored in Oracle database. Meanwhile, the constructed interfaces can offer such functionalities like image blocking, compressing, pyramid construction, and spatial indexing. To the latter, the constructed system present two connecting mechanisms: Client/Server and Browser/Server. All the systems support data querying, data visualization, data acquisition as well as some other data management operations.