大比例尺DEM生产过程中的粗差检测与质量控制的研究

Research of Gross Error Detection and Quality Control in Large Scale EDM Processing

为了保证DEM的精度的可靠性,探讨了从已有矢量地形图和全数字摄影测量两个方面制作DEM的方 法,同时就生产过程中对DEM的粗差检测和质量控制做了阐述。

In order to ensure the reliability of DEM precision, the article discussed how to get the DEM from vector topographic map and full digital photograrnmetry, and described DEM gross error detection and quality control during the processing.