多源信息的集成与融合及其在遥感制图中的优化利用

多源信息的集成和融合是地球信息科学领域的一大热点问题。它的意义和必要性与地球信息本身的特征、采集信息的手段特征及信息处理平台或系统的特点三方面紧密相联系。本文从不同传感器信息的集成和融合、遥感信息与非遥感地学信息的集成和融合、不同格式的 GIS数据的集成和复合三个方面研究了多源信息集成和融合的方法、前沿技术和应用领域,进而以黄土高原土壤侵蚀遥感调查和制图任务为例,介绍了多源信息集成和融合技术在该项目中的优化应用实例,包括技术流程分析、信息源分析、多源信息在土壤侵蚀遥感调查和制图中的融合方法、从遥感图像解译信息到 GIS数据库的转换技术等。

Integration and Fusion of Multi source Information and its Optimized Using in RS Image Based Mapping

The integration & fusion of multi source information is one of the key problems in Geo information Science. Its significance is linked closely with the feature of geo information, the technological characteristics of information gathering, as well as the feature of system for information processing. This paper expounded the author's study on the method, the latest techniques and the application, of integration & fusion for multi source information, detailed in three respects, i.e., the integration & fusion of information from different RS sensors and platform, the integration & fusion of RS information with non RS information, and the integration & fusion of GIS data in different format. Furthermore, the author analyzed the optimized using of this technique, taking the RS image based investigation of soil erosion in Loess Plateau as an example, including the analysis of technical workflow for RS based image mapping, the analysis of various information sources and the method information fusion, as well as information transformation technology from RS based image to GIS database, etc. The paper concluded that for the purpose of optimum utilization of information from various sources, the integration & fusion of multi source information is remarkably important, and the methods & techniques related in this paper are highly efficient and usable.