和灭实拟技巧的收铺，地球空间数据获取脚腕如摄影测量、激光扫描等技巧突飞猛入，越来越长的城市开初建设本人的数字城市。
With the development of virtual technology and three-dimensional geospatial data collection technology, more and more cities began to build their own digital city.
数字摄影测量可以成为数字城市数据采集及更新的手段之一。
Digital photogrammetry could be one of the methods of Collecting and updating Digital city data.
文摘：论述了城市1：50 0比例尺航空摄影测量的全过程，结合生产实际提出了做好这一工作的技术措施，对各阶段的作业精度进行了统计分析。
Abstract: This paper introduced the all process of urban 1:500 scale Aerophotogrammetry. Technical measures in production are put forward. Work precision in every phase is analysed on statistics.
文摘：论述了城市1：50 0比例尺航空摄影测量的全过程，结合生产实际提出了做好这一工作的技术措施，对各阶段的作业精度进行了统计分析。
Abstract: This paper introduced the all process of urban 1:500 scale Aerophotogrammetry. Technical measures in production are put forward. Work precision in every phase is analysed on statistics.
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