Light Detection and Ranging Point Cloud Data: 2000 - Present

LIDAR (Light Detection and Ranging) discrete-return point cloud data are available in the American Society for Photogrammetry and Remote Sensing (ASPRS) LAS format. The LAS format is a standardized binary format for storing 3-dimensional point cloud data and point attributes along with header information and variable length records specific to the data. Millions of data points are stored as a 3-dimensional data cloud as a series of x (longitude), y (latitude) and z (elevation) points. A few older projects in this collection are in ASCII format. Please refer to http://www.asprs.org/Committee-General/LASer-LAS-File-Format-Exchange-Activities.html for additional information.

激光雷达（Light Detection and Ranging，LIDAR）离散回波点云数据采用美国摄影测量与遥感学会（American Society for Photogrammetry and Remote Sensing, ASPRS）制定的LAS格式（LAS format）存储。LAS格式是一种标准化二进制格式，用于存储三维点云数据及其点属性，同时附带针对特定数据的文件头信息与可变长记录。该数据集以三维数据云的形式存储了数百万个数据点，每个点由x（经度）、y（纬度）及z（高程）坐标构成。本数据集集中有少量老旧项目采用ASCII格式（ASCII format）存储。如需获取更多相关信息，请访问：http://www.asprs.org/Committee-General/LASer-LAS-File-Format-Exchange-Activities.html。