A Lidar Point Cloud Based Procedure for Vertical Canopy Structure Analysis And 3D Single Tree Modelling in Forest
作者： Yunsheng Wang , Holger Weinacker , Barbara Koch
DOI: 10.3390/S8063938
关键词: Tree traversal 、 Geology 、 Projection (set theory) 、 Remote sensing 、 Tree canopy 、 Point cloud 、 Tree (data structure) 、 Canopy 、 Lidar 、 Crown (botany)
摘要: A procedure for both vertical canopy structure analysis and 3D single tree modelling based on Lidar point cloud is presented in this paper. The whole area of research segmented into small study cells by a raster net. For each cell, normalized whose heights represent the absolute ground objects generated from original raw cloud. main layers height ranges are detected according to statistical distribution probability points. individual trees, trees delineated not only top layer but also sub layer. points resampled local voxel space. series horizontal 2D projection images at different levels then respect Tree crown regions images. Individual extracted means pre-order forest traversal process through all levels. Finally, models reconstructed. With further analyses crowns, important parameters such as range, volume contours can be derived.
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Erik Næsset, Predicting forest stand characteristics with airborne scanning laser using a practical two-stage procedure and field data Remote Sensing of Environment. ,vol. 80, pp. 88- 99 ,(2002) , 10.1016/S0034-4257(01)00290-5
Kevin Lim, Paul Treitz, Ken Baldwin, Ian Morrison, Jim Green, Lidar remote sensing of biophysical properties of tolerant northern hardwood forests Canadian Journal of Remote Sensing. ,vol. 29, pp. 658- 678 ,(2003) , 10.5589/M03-025
D.J Harding, M.A Lefsky, G.G Parker, J.B Blair, Laser altimeter canopy height profiles: methods and validation for closed-canopy, broadleaf forests Remote Sensing of Environment. ,vol. 76, pp. 283- 297 ,(2001) , 10.1016/S0034-4257(00)00210-8
U. Stilla, J. Reitberger, P. Krzystek, COMBINED TREE SEGMENTATION AND STEM DETECTION USING FULL WAVEFORM LIDAR DATA ,(2007)
Ulf Söderman, Johan Holmgren, Asa Persson, Detecting and measuring individual trees using an airborne laser scanner Photogrammetric Engineering and Remote Sensing. ,vol. 68, pp. 925- 932 ,(2002)
Barbara Koch, Ursula Heyder, Holger Weinacker, Detection of individual tree crowns in airborne lidar data Photogrammetric Engineering and Remote Sensing. ,vol. 72, pp. 357- 363 ,(2006) , 10.14358/PERS.72.4.357
M.A. Lefsky, W.B. Cohen, S.A. Acker, G.G. Parker, T.A. Spies, D. Harding, Lidar Remote Sensing of the Canopy Structure and Biophysical Properties of Douglas-Fir Western Hemlock Forests Remote Sensing of Environment. ,vol. 70, pp. 339- 361 ,(1999) , 10.1016/S0034-4257(99)00052-8
Hannu Hyyppä, Ulla Pyysalo, Reconstructing tree crowns from laser scanner data for feature extraction ,(2002)