| 应用大比例尺航片进行树高量测* |
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| 引用本文： | 沈洁.应用大比例尺航片进行树高量测*[J].林业科学研究,1991,4(1):74-78. |
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| 作者姓名： | 沈洁 |
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| 作者单位： | 中国林业科学研究院资源信息研究所 |
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| 基金项目： | 林业部资源司下达课题“大比例尺航片量测试验” |
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| 摘 要： | 本文介绍利用象片量测树高的一种新方法,通过建立数字地面模型,解决林地上树根被灌木遮蔽的问题,从而提高了树高量测精度。
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| 关 键 词： | 森林资源调查 大比例尺航片 树高量测 数字地面模型 量测精度 |
| 收稿时间： | 1990/2/12 0:00:00 |
Application of Large Aerophotos for the Height Measurement of Tree |
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| Sheng jie.Application of Large Aerophotos for the Height Measurement of Tree[J].Forest Research,1991,4(1):74-78. |
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| Authors: | Sheng jie |
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| Institution: | The Research Institute of Forest Resources Information Technique CAF |
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| Abstract: | This paper presents a new method of measuring the height of trees through aerophotos. Based on the area unit centered at the root of a tree, a Digital Height Model (DHM) can be established by using "Moving Tilted Plane" to fit the terrain surface. With the DHM, the problem of invisibility of the root of a tree covered by shrubbery or bushes can be solved. As a result of an experiment, the measuring accuracy has been improved and the mean square deviation of 1.5 (m) for measuring the height of tree has been reached. |
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| Keywords: | forest inventory large scale aerophotos measurement of tree |
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