摘要
树冠是预估树木生长量的基本参数之一,树冠的提取在森林资源管理中越来越受到重视,但准确获得树冠的形状和边缘信息比较困难。目前,国内外树冠提取研究主要是利用高分辨率影像、航空像片、数码相机影像以及雷达等介质,以面向对象多尺度分割技术为主,兼有专家分类、三维扫描、BP神经网络等方法。文中介绍了树冠提取技术的主要方法,总结了树冠提取技术中存在的问题及发展前景。
Tree crown is one of the basic parameters by which we can estimate the increment. More and more attention has been paid to tree crown information extraction and its application to forest resources management, but it is difficult to extract the shape and edge information of tree crown accurately. In the recent researches, high resolution images, aerial photograph, digital camera images, radar, etc. have been used to extract tree crown information with object-oriented segmentation technology, supplemented by expert classification, 3D scanning and the BP network method. The paper introduced the main methods used in tree crown extraction technologies and extraction technology. finally summarized the problems and development prospects of crown
出处
《世界林业研究》
CSCD
北大核心
2013年第4期38-42,共5页
World Forestry Research
基金
林业公益性行业科研专项林改后南方林地可持续经营关键技术研究与集成示范(201004008)
林业公益性行业科研专项基于林改的森林多功能经营技术研究与示范(200904003-1)
关键词
树冠
树冠提取
面向对象
影像分割
遥感技术应用
tree crown, tree crown extraction, object-oriented, image segmentation, application of remotesensing technology