| LAS格式解析与信息提取 |
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| 引用本文： | 徐国庆,顾钰培,高雪梅.LAS格式解析与信息提取[J].测绘与空间地理信息,2014(7):104-106,109. |
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| 作者姓名： | 徐国庆 顾钰培 高雪梅 |
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| 作者单位： | 西安测绘总站,陕西西安710054 |
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| 摘 要： | 结合LAS1.0,从公共文件头区、变长记录区和点集记录区3个方面,对LAS格式的各个版本进行了分析比较,并利用Matlab语言实现对各个版本LAS数据的读取、显示以及激光脚点的三维坐标、回波、强度等信息的提取,为后续LAS格式数据的处理奠定了基础。
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| 关 键 词： | 激光雷达 LAS 变长记录区 扩展性 |
Analysis of LAS Format and Information Extraction |
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| Institution: | XU Guo - qing, GU Yu - pei, GAO Xue - mei ( Xi＇an Division of Surveying and Mapping, Xi＇an 710054, China) |
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| Abstract: | Combining with the LAS version 1.0, the various versions of the LAS format are analyzed and compared from the aspect of public header block, variable length records and point data. Then the data of various versions of the LAS format is read and displayed and the information of laser point is extracted including three - dimensional coordinate information, echo information, intensity information and so on by matlab program, which lays the foundation for follow-up of the LAS format of data processing to some extent. |
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| Keywords: | LIDAR LAS variable length records expansibility |
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