| 机载激光雷达点云数据的实时渲染 |
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| 引用本文： | 黄先锋,陶闯,江万寿,龚健雅.机载激光雷达点云数据的实时渲染[J].武汉大学学报(信息科学版),2005,30(11):975-978. |
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| 作者姓名： | 黄先锋 陶闯 江万寿 龚健雅 |
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| 作者单位： | 1. 武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129,430079
2. 约克大学地球与大气科学系,多伦多市Keele大街4700号,加拿大 |
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| 基金项目： | 国家973计划资助项目(2002CB312101) |
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| 摘 要： | 提出了一种实时绘制大规模LIDAR点云数据的方法。该方法通过构建一棵顺序四叉树使点云均匀分布在四叉树节点上,来实现快速的数据筛选。阐述了顺序四叉树的快速建立,并通过一个试验系统验证了文中所提方法的有效性。试验表明,使用目前普通配置的计算机,通过自适应控制绘制的数据量,可以实时绘制约1GB的原始点云数据。
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| 关 键 词： | LIDAR 点云 实时可视化 顺序四叉树 |
| 文章编号： | 1671-8860(2005)11-0975-04 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005年9月13日 |
Real-time Render Large Amount of LIDAR Point Clouds Data |
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| HUANG Xianfeng,C. Vincent Tao,JIANG Wanshou,GONG Jianya.Real-time Render Large Amount of LIDAR Point Clouds Data[J].Geomatics and Information Science of Wuhan University,2005,30(11):975-978. |
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| Authors: | HUANG Xianfeng C Vincent Tao JIANG Wanshou GONG Jianya |
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| Affiliation: | 1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan 430079, China;2.Department of Earth and Atmospheric Science, York University, 4700 Keele Street, Toronto, Canada |
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| Abstract: | The authors propose a method to real-time render large amount of LIDAR points clouds. In order to fast culling invisible data and make result of progressive rendering reasonable, a sequential coded Quardtree is built with points clouds evenly distributed to nodes of every layer from top to down. The authors discussed the procedure of building a sequential coded QuardTree, explain how to add points clouds to nodes of tree. The authors also implement a system to prove the method proposed in this paper, which can real-time render 1GB raw point clouds( about 20 million points) data with common commodity computer. |
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| Keywords: | LIDAR points clouds real-time visualization sequential coded Quardtree |
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