安徽农业科学2011，Vol.39Issue(23)：14089-14093,5.
基于LiDAR数据和Quickbird影像的树高提取方法及应用
A LiDAR Based Tree Height Model and Its Application
摘要
Abstract
In order to effectively extract the crown boundary and the tree height information, a suppressed trees considering tree height model was found. Tree boundary was obtained by mathematical morphology based on watershed segmentation worked on the LiDAR data after filtering and Quickbird images. The highest point of extraction trees were considered as crown apex. Weibull distribution was used to predicted height distribution of the suppressed trees. The results showed that the method can automatically and effectively extract the crown border, comparing the height by the model and field-measured with R2 =0.93 and Weibull function used with R2 =0. 93. The accuracy showed good fulfillment with the requirement of practical application.关键词
分水岭分割/LiDAR/半方差函数/Weibull函数Key words
Watershed segmentation/LiDAR/Semivariance function/Weibull function分类
信息技术与安全科学引用本文复制引用
王臻,吴连喜,苏伟,孙崇利..基于LiDAR数据和Quickbird影像的树高提取方法及应用[J].安徽农业科学,2011,39(23):14089-14093,5.基金项目
国家自然科学基金项目(40801128) （40801128）
核资源与环境教育部重点实验室开放基金项目(081212). （081212）
