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DEM作为基础测绘产品,其应用日益广泛,结合我院完成的大比例尺航测项目,谈谈应用数字摄影测量系统(VirtuoZo及JX4)为满足工程需要而生成大比例尺DEM的几点认识。
As a basic surveying and mapping product, DEM is widely used. Based on the large-scale aeronautical survey project completed by our institute, we will talk about the application of digital photogrammetric system (VirtuoZo and JX4) to generate large-scale DEM in order to meet the engineering needs.