摘要
目前，数字高程模型（DEM）质量评估比较常用的方法是基于等高线回放法，但是该算法也存在一定不足。本文在研究国内外相关成果的基础上，提出了基于多级缓冲区置信阈的DEM质量评估方法，并进行了实验验证，为进一步研究并提高DEM数据质量评估的可靠性和有效性提供了一种切实可行的手段。
At present, the common method for Digital Elevation Model（DEM） quality evaluation is based on the contour- replay, but this method has some shortages. On the basis of related research results at home and abroad, a DEM quality evalua- tion method based on the confidence threshold is put forward and validated by experiment. The results provide a feasible means to further the studies and improve the reliability and effectiveness of DEM data quality evaluation.
出处
《测绘科学与工程》
2014年第5期49-54,共6页
Geomatics Science and Engineering
关键词
数字高程模型(DEM)
质量评估
多级缓冲区
置信阈
Digital Elevation Model（DEM）
quality evaluation
multilevel buffer
confidence threshold
