多源数据更新地理空间数据库的理论与关键技术

地理空间数据整合与更新是目前国际地理信息科学界的前沿课题。数字合并计算、多尺度空间数据集成计算环境是有效的空间数据整合实现技术,多源空间数据统一资源信息服务平台是实现整合空间信息服务的有效途径,利用卫星遥感影像数据和应用GIS空间目标综合技术更新空间数据库是有效的空间数据库更新技术途径。论文对空间数据整合和更新的理论及技术进行了较为全面的分析,指出地理空间数据库整合增强并丰富了空间数据库的服务能力,地理空间数据库更新提升了地理空间信息服务的质量和价值。

Theory and Key Technology of Updating Geospatial Database Based on Multi-resource Spatial Data

Integration and updating of geospatial data is a key problem in Geomatics. Conflation and integration computer environment of multi-scale spatial data are valid implement technology of spatial data integration. The unified information service platform of multi-resource spatial data is an effective means to get spatial information service. Using satellite image data and applying GIS spatial objects generalization technology to update spatial database are effective approaches. In this paper, the theory and technology of spatial data integration and updating are throughly analyzed, and we also present that integration of geospatial data enhances the service ability of spatial database, and the updating upgrade the value of geospatial information service.