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FOREST RESOURCES WANAGEMENT ›› 2014, Vol. 0 ›› Issue (3): 126-133.doi: 10.13466/j.cnki.lyzygl.2014.03.028

• Technical Application • Previous Articles     Next Articles

The Calibration of Terrestrial Laser Scanning for Forest Inventory

LIANG Ziyu1,2, SUN Yuan1, LI Weizheng3   

  1. 1. College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China;
    2. Spatial Information Technology Research Center,Jiangsu Provincial Institute of Surveying and Mapping Engineering,Nanjing 210013,China;
    3. Advanced Analysis and Testing Center,Nanjing Forestry University,Nanjing 210037,China
  • Received:2014-04-14 Revised:2014-06-17 Online:2014-06-28 Published:2020-12-09

Abstract: The study establishes a simulated scenario of forest inventory in plots by using three different sizes of the sample plots and scanning resolution.Point cloud data are acquired by terrestrial laser scanning,and the data are processed by least square method to fit a circle.The diameter of the fitted circle is the top diameter at the specific height.The results show that the accuracy of the estimation of top diameter is highest when the radius of the sample plot is 10m and the scanning resolution is middle.The research aims at setting a reference calibration of forest inventory using TLS,achieving high accuracy and low operational and time cost,taking full advantage of TLS in forest inventory.

Key words: terrestrial laser scanning(TLS), point cloud, forest inventory, calibration

CLC Number: