本文从遥感影像理解模型出发,探讨了遥感信息的知识发现及特征提取问题,特别针对士地利用研究领域,提出了纳入GIS信息的遥感影像综合理解模型,将GIS数据(主要包括高程和坡度)与遥感影像结合起来,从中发现知识,并将知识用于遥感影像的专题信息提取,建立了地学规律知识库,从而提高了遥感影像的分类精度。本文基于遥感影像理解模型,发现土地利用变化区域,提取变化信息,动态地监测了龙口市土地利用的时空变化情况。
This article, taking Longkou as an example, on the basis of GIS technology and the treatment technology of multi-temporal remote sensing images, establishes a synthetical comprehension model of remote sensing images. Combining GIS data ( mainly including elevation and slope) with remote sensing images and find knowledge, it mines the thematic information and constructs the geographic law knowledge base to improve the category precision. By the model, it can draw land use types of different periods and monitor land use space-time changes.