【摘要】 激光雷达是近年来兴起的一种快速获取地物目标三维信息的主动遥感技术。其采集的离散激光点具有数据量大,信息丰富等特点。目前常用的LIDAR数据存储格式,在存储LIDAR数据时存在种种不足,且数据交换和共享困难。LAS格式是ASPRS制定的标准LIDAR数据交换格式,能较好地解决多属性离散激光点数据的存储问题,具有结构严谨,便于扩展等优点。本文在对LAS格式进行解析的基础上,针对LAS变长记录的扩展域,介绍了一些实际的应用。更多还原

【Abstract】 LIDAR is an arisen active remote sensing technology that can collect the 3D information of the terrain object directly.The discrete footprints gained by LIDAR have a tremendous volume and abundant information.At present,the common storage formats of LIDAR data have a lot of drawbacks,and have plenty of barriers in the data sharing and exchanging.Facing these inconveniences,the standard LIDAR data exchange format-LAS format has been established by ASPRS.LAS format can solve the existed problems such as the multi-attribute and discrete LIDAR footprints data storage etc.The advantage of the LAS format is its regular and extensible structure.In this article,an exhaustive analysis has been given,and some practical applications of LAS variable length records have been introduced.更多还原