林图数字化过程中空间数据精度与质量控制研究

The Study of Space Data Precision and Quality Control in the Process of Digital Forest Map

在林业地理信息系统的建立中 ,利用地形图、林图采集信息是建立林业数据库的必要手段 ,数据采集过程中数据质量将直接影响地理信息系统能否成功建立 ,分析、预测的结果是否可靠 ,本文通过研究数据采集中误差产生的过程 ,提出对矢量化数据进行两次校正的方法 ,将数据精度控制在误差范围内。

This article discuss in the revising of forest geography information systems,using relief map and forest map collection information is the certainly means which set up forest database.In the process of data collection,Data quality will influences the foundation of the geography information systems,the result of analysis and forecast is Whether credibility.Passing the data'collection,this paper study the procreant course of error and putting forward the ways of revising vector data twice,so that we can controlling the precision in the range of the error.