| 一种基于自适应窗口滤波的DEM获取算法 |
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| 引用本文： | 张保明,郭海涛,张宏伟,卢俊.一种基于自适应窗口滤波的DEM获取算法[J].海洋测绘,2011,31(3):28-30. |
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| 作者姓名： | 张保明 郭海涛 张宏伟 卢俊 |
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| 作者单位： | 1. 解放军信息工程大学,测绘学院,河南,郑州,450052
2. 解放军信息工程大学,测绘学院,河南,郑州,450052;海军海洋测绘研究所,天津,300061 |
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| 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.
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| 关 键 词： | 影像匹配 数字高程模型 滤波 点云数据 |
An Algorithm for DEM Acquisition Based on Adaptive Window Filtering |
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| ZHANG Bao-ming,GUO Hai-tao,ZHANG Hong-wei,LU Jun.An Algorithm for DEM Acquisition Based on Adaptive Window Filtering[J].Hydrographic Surveying and Charting,2011,31(3):28-30. |
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| Authors: | ZHANG Bao-ming GUO Hai-tao ZHANG Hong-wei LU Jun |
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| Institution: | (Institute of Surveying and Mapping,Information Engineering University,Zhengzhou,Henan,450052) |
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| Abstract: | 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. |
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| Keywords: | image matching DEM filtering point cloud data |
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