摘要
在分析了一种基于固定窗口滤波的DEM获取算法的基础上,提出了一种自适应窗口滤波的DEM获取算法,改变移动窗口的大小进行分块拟合来反演地面的高程值,获取DEM数据。利用海岸带区域IKONOS卫星影像匹配生成的三维坐标数据集进行了实验,实验证明了该算法的有效性。
Based on the analysis of a DEM acquisition algorithm using fixed window filtering,an adaptive window filtering algorithm is proposed for DEM acquisition,by ways of changing the size of moving window to do fitting part by part to invert the ground elevation.Data generated by matching coastal areas of the IKONOS satellite images is used for test.Experimental results indicated that this algorithm is effective.
出处
《海洋测绘》
2011年第3期28-30,共3页
Hydrographic Surveying and Charting
基金
国家863计划项目(2010AA703503013)
