高密度激光雷达(LiDAR)测量技术是一种先进的主动遥感测量技术,可以高效而准确地获取被测目标物的高密度三维点云信息,具有快速,准确,非接触式等显著优点。介绍了激光雷达的测树原理以及3种测量扫描方式的特点,以实例分析了人工测量与三维激光扫描测量立木胸径和材积的精度差异,并对该技术的未来发展趋势作了展望。
High density LiDAR is an advanced active remote sensing technology that can obtain high density 3D point cloud information of the object efficiently and quickly with fast,accurate and non-contact advantages.This paper describes the measuring principle of High density LiDAR and the characteristics of 3 kinds of scanning methods.Analysis was conducted on the accuracy difference between artificial precision measurement and 3D laser scanning measurement of tree DBH and volume by experiment.Finally,this paper discusses the future development trend of this technology.
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