在图像元数据有关研究的基础上，完成了一套遥感图像数据库元数据体系的设计。
Based on the analysis of the research of image metadata, the metadata system of remote sensing image information system is designed and proposed.
本文提出了一种基于知识的遥感图像模糊分类算法，在传统的模糊分类方法中加入了从GIS数据库中发现的知识，用它来辅助进行遥感图像分类。
In this paper, a knowledge-based fuzzy image classification method is proposed. In the method, knowledge discovery from GIS is introduced in to assist fuzzy image classification.
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