文章基本信息

标题：Analysis of Full Waveform Lidar Data for Tree Species Classification
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作者：Josef Reitberger ; Peter Krzystek ; Uwe Stilla 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 3
出版社：Copernicus Publications
摘要：The paper describes an approach to tree species classification based on features that are derived by a waveform decomposition of full waveform LIDAR data. Firstly, 3D points and their attributes are extracted from the waveforms, which yields a much larger number of points compared to the conventional first and last pulse techniques. This is caused by the detailed signal analysis and the possibility to detect multiple pulse reflections. Also, constraints are embedded into the mathematical model of the decomposition to avoid erroneous 3D points caused by the system electronics. Secondly, special tree saliencies are proposed, which are computed from the extracted 3D points. Subsequently, an unsupervised tree species classification is carried out using these saliencies. The classification, which groups the data into two clusters (deciduous, coniferous), leads to an overall accuracy of 80 % in a leaf-on situation. Finally, the results are shortly discussed
关键词：LIDAR; analysis; segmentation; classification; forestry; vegetation