existing map digitalization 原图数字化
topographic map digitalization 地形图数字化
map scanning digitalization 地形图扫描数字化
Applications of digital survey technique in survey of water resources and hydropower projects and experience on existing map digitalization, digital mapping, and digital photogrammetry are introduced.
介绍了数字化测绘技术中的原图数字化、数字测图、数字摄影测量几个方面在水利水电工程测量实践中的应用体会和经验。
To implement topographic map digitalization by means of MAPGIS is one of main means of getting spatial geographic information data, and that digitalization could bring out diversified sorts of errors.
利用MAPGIS实现地形图数字化是获取空间地理信息数据的主要手段之一，而图形数字化过程中会产生各种类型的误差。
The data of GIS include space data and property data. Position errors are mainly from errors of direct measurement, digitalization of map, data input and store.
位置误差主要来源于直接测量的误差、地图数字化的误差遥感数据的误差、数据转换误差、数据输入与存储误差。
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