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基于局域最大值法单木位置探测的适宜模型研究

李响 甄贞 赵颖慧

李响, 甄贞, 赵颖慧. 基于局域最大值法单木位置探测的适宜模型研究[J]. 北京林业大学学报, 2015, 37(3): 27-33. doi: 10.13332/j.1000-1522.20140313
引用本文: 李响, 甄贞, 赵颖慧. 基于局域最大值法单木位置探测的适宜模型研究[J]. 北京林业大学学报, 2015, 37(3): 27-33. doi: 10.13332/j.1000-1522.20140313
LI Xiang, ZHEN Zhen, ZHAO Ying-hui. Suitable model of detecting the position of individual treetop based on local maximum method[J]. Journal of Beijing Forestry University, 2015, 37(3): 27-33. doi: 10.13332/j.1000-1522.20140313
Citation: LI Xiang, ZHEN Zhen, ZHAO Ying-hui. Suitable model of detecting the position of individual treetop based on local maximum method[J]. Journal of Beijing Forestry University, 2015, 37(3): 27-33. doi: 10.13332/j.1000-1522.20140313

基于局域最大值法单木位置探测的适宜模型研究

doi: 10.13332/j.1000-1522.20140313
基金项目: 

中央高校基本科研业务费专项资金(DL13EA05-03)

详细信息
    作者简介:

    第一作者: 李响。主要研究方向:林业遥感与地理信息系统。Email:lx9056@163.com 地址:150040 黑龙江省哈尔滨市和兴路26号东北林业大学林学院。责任作者: 赵颖慧,博士,副教授。主要研究方向:地理信息系统开发。Email:zyinghui0925@126.com 地址:同上。

    第一作者: 李响。主要研究方向:林业遥感与地理信息系统。Email:lx9056@163.com 地址:150040 黑龙江省哈尔滨市和兴路26号东北林业大学林学院。责任作者: 赵颖慧,博士,副教授。主要研究方向:地理信息系统开发。Email:zyinghui0925@126.com 地址:同上。

Suitable model of detecting the position of individual treetop based on local maximum method

  • 摘要: 以凉水自然保护区为研究区域,基于机载激光雷达数据,采用动态窗口局部最大值法对郁闭度较高的针叶林进行单木位置自动提取。采用树冠高度模型(CHM)和树冠最大模型(CMM)配合两种动态窗口,即树高--树冠大小回归方程和该方程的95%预测下限来探测树冠顶点,用探测百分比、1∶1对应关系的单木个数、生产者精度和用户精度进行了精度评价。结果表明:利用CMM能够抑制树冠内部枝杈产生的错判现象;利用树高--树冠大小回归方程95%的预测下限做动态窗口,能够有效防止在局部最大值方法中产生的小树漏测现象。因此,利用CMM和95%的预测下限做动态窗口的局域最大值法有利于提高单木位置探测的精度,为密林中自动地探测单木位置提供依据。

     

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出版历程
  • 收稿日期:  2014-09-15
  • 修回日期:  2014-12-15
  • 刊出日期:  2015-03-31

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