多源数据融合更新基础地理信息数据的研究

利用多源数据通过融合的方式更新基础地理信息数据,实现数据集约融合整合,在现有的地理国情监测、各类国土调查数据成果的基础上,通过辨析不同手段获取数据的语义差别,融合形成非尺度的基础地理信息数据。实现新型基础测绘体系的初步探索,实现多源数据增量更新推送,提高数据共享时效性。通过应用验证,能较好地提升基础地理信息数据的精度,解决了长效更新的问题,改变了传统依靠影像或外业更新的模式,提高了效率。

Research on Basic Geographic Information Data Updating Based on Multi-source Data Fusion

In this paper,using multi-source data to update basic geographic information data is realized by intensive fusion and integration of data.Based on the results of existing geographic national conditions monitoring and various land survey data,the semantic differences of the data are obtained by identifying and analyzing different methods.Fusion forms non-scale basic geographic information data,which realizes the preliminary exploration of the new basic surveying and mapping system,the multi-source data incremental updating and pushing,and improves the timeliness of data sharing.Through the application verification,the accuracy of the basic geographic information data can be improved,the long-term updating problem is solved,and the traditional model that relies on image or field updates is changed,which improves updating efficiency.