期刊文献+

一种从城区LiDAR数据提取DEM的方法 被引量:9

A Method of Extracting DEM from LiDAR Data in Urban Areas
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摘要 机载激光扫描系统可以直接生成扫描区域的数字表面模型,但为了提取数字地面模型还须对LiDAR数据进行滤波处理。分析用坡度法对机载LiDAR数据进行滤波的不足,针对其不足以及城区LiDAR数据的特点,提出一种将坡度法与区域增长相结合的滤波方法。与坡度法相比,该方法提高了滤波的精度和效率,并能对复杂的城市地貌进行滤波。试验结果表明,该方法计算速度快,并能够有效地滤除城区LiDAR数据中的地物。
出处 《测绘通报》 CSCD 北大核心 2010年第2期26-28,62,共4页 Bulletin of Surveying and Mapping
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参考文献9

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二级参考文献22

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引证文献9

二级引证文献64

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