| 基于TIN的LiDAR地面点云数据简化方法研究 |
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| 引用本文： | 黄超,李书.基于TIN的LiDAR地面点云数据简化方法研究[J].人民长江,2011,42(22):92-95. |
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| 作者姓名： | 黄超 李书 |
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| 作者单位： | 水利部长江勘测技术研究所,湖北武汉,430011 |
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| 摘 要： | 机载LiDAR点云数据的简化虽属数据辅助处理的范畴,但对提高庞大点云数据后处理效率起着重要作用.将TIN迭代加密方法引入机载LiDAR地面点云数据简化中；对平坦地形直接简化,对复杂地形则提取山谷线、山脊线,将获得的特征点作为种子点加入TIN加密迭代简化方法中.实验证明,该方法能够在保证数据精度的前提下,简化点云数据.
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| 关 键 词： | LiDAR TIN 点云数据简化 数据处理 |
Research on method of ground point-cloud data simplification of airborne LiDAR based on TIN |
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| HUANG Chao,LI Shu.Research on method of ground point-cloud data simplification of airborne LiDAR based on TIN[J].Yangtze River,2011,42(22):92-95. |
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| Authors: | HUANG Chao LI Shu |
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| Affiliation: | HUANG Chao,LI Shu(Changjiang Reconnaissance Technology Research Institute,Ministry of Water Resources,Wuhan 430011,China) |
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| Abstract: | Although ground point-cloud data simplification of airborne LiDAR based on TIN belongs to auxiliary data processing method,yet it has significant influence on increasing processing efficiency of point-cloud data.The TIN iteration densification was introduced to simplify the point-cloud data.The plain terrain was directly simplified while for complex terrain,we extracted valley line,ridge line,and incorporated the feature point to TIN iteration densification as seed point.The test proved that,on the premise ... |
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| Keywords: | LiDAR TIN point-cloud data simplification data processing |
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