利用等高线套合差评定DEM质量的应用研究  

Through the contour sets evaluation DEM quality application research

作　　者：张晓伟[1] 沈军[1] 

机构地区：[1]青海省测绘产品质量监督检验站,青海西宁810001

出　　处：《青海师范大学学报（自然科学版）》2013年第2期26-29,共4页Journal of Qinghai Normal University(Natural Science Edition)

摘　　要：DEM再生等高线与原始矢量等高线的套合检查,是目前基于等高线生产DEM中质量检查的主要方法.本文阐述了套合差的自动计算与分析方法,并以较为复杂多样的地形作为实验,研究等高线套合差在评价DEM质量上的应用方法和效果.对于进一步完善DEM质量评价具有理论上的指导意义和实际应用价值.DEM regeneration contour vector contour with the original set and check, is the main meth- od based on contour DEM quality inspection in the production. This article expounds the set of poor auto- matic calculation and analysis method, and the terrain is more complex and diverse terrain, for experi- ment, the difference in evaluation research contour sheath DEM application method and effect of quality. For further improving the DEM accuracy evaluation system has important theoretical guiding significance and practical application value.

关 键 词：等高线 套合差 DEM 质量评价 

分 类 号：P237[天文地球—摄影测量与遥感]