数据获取是GIS的基本组成部件。地图数据依然是大多数GIS的主要数据源。如何实现地图数据的快速转换已成为GIS迅速发展的一个“瓶颈”。本文基于对地图识别所需知识种类、目标符号描述模型、知识表示方法及知识利用机制的详细研究，提出了一个栅格地图识别的专家系统模型。

Data aquisition is a basic part of GIS,and currently various map data is still the main data source of GIS.So research on the method to rapidly transform raster data of scanned map to vector data is valuable.In this paper,based on the detailed analysis on the knowledge types needed in map recognition,model of symbol object,knowledge representation method and knowledge utilizition policy,an expert system model for raster map recognition is proposed.