Principle and application of Laser Radar Technology for tree measurement

High density LiDAR is a Advanced active remote Sensing Technology so can obtain high density 3 D point cloud information a Object efficiently and quickly with Fast , Accurate then non-contact advantages . This paper describes , measuring principle a High density LiDAR and The characteristics of 3 kinds The scanningmethods. Analysis Was conducted on the accuracy Difference between Artificial Precision Measurement and 3D Laser scanning Measurement To tree DBH and volume by experiment. Finally , This paper discusses the future Development trend of This Technology .