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Method for monitoring growth of trunk based on 3D laser scanning technology

A scanning technology and a three-dimensional laser technology, applied in the field of stand tree measurement, can solve the problems of biomass data deviation and achieve the effect of accurate trunk growth monitoring

Inactive Publication Date: 2018-01-05
陈杰
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Problems solved by technology

However, the current instruments and methods are designed for the measurement of one-dimensional tree diameter at breast height, and the thickening and growth of tree trunks is actually a two-dimensional quantity showing the change of chest height cross-sectional area. Therefore, the biomass data measured by the above methods will have certain limitations. deviation

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  • Method for monitoring growth of trunk based on 3D laser scanning technology
  • Method for monitoring growth of trunk based on 3D laser scanning technology

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Embodiment Construction

[0009] The present invention will be further described in detail below in conjunction with the description of the drawings and specific operations. Specific implementation method steps and experimental program steps flow Figure one One correspondence, such as figure 1 :

[0010] 1. Set up FARO Photon 120 three-dimensional laser scanner to collect data on the spot, and refer to the instrument manual for specific operations.

[0011] 2. After the collected point cloud data is spliced ​​and registered with the 3D engineering software Geomagic Studio, a complete sample site cloud data is generated through the function of merging point objects ( figure 2 a).

[0012] 3. Manually separate and extract single wood point cloud data by changing the perspective of the 3D mode ( figure 2 b).

[0013] 4Using the Irregular Triangulated Network Modeling Method (TIN) to establish a three-dimensional tree model. After it is built, the software's own measurement tool can be used to extract tree mea...

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Abstract

The invention discloses a method for monitoring the growth of a trunk based on the 3D laser scanning technology. In the field of single tree measurement in forest measurement, a departure from conventional instruments and methods which are designed to be 1D measurement of the diameter at breast height of trees, the method herein is 2D measurement which extracts the sectional area and shape changesof the diameter at breast height of trees by establishing a 3D tree model with the 3D laser scanning technology. The method herein greatly increases the precision in monitoring the growth of trees.

Description

Technical field [0001] The invention relates to the determination of individual standing trees in dendrometry. Background technique [0002] Knowing the changes in forest biomass in a timely and accurate manner is of great significance for the country to implement the United Nations Framework Convention on Climate Change. The accurate determination of the tree measurement factors of individual standing trees is of great significance to the estimation of forest biomass. Regarding the measurement devices and techniques for measuring tree tree measurement factors, there are many excellent technical methods, such as the invention "Measurement method of trees based on smart terminal lens" (publication number: CN105066877A) applied by Wang Botao and others. Compared with traditional tree measurement methods, it is possible to obtain tree height, diameter at breast height, crown width and other information more accurately and easily; another invention applied by Zhang Xiaopeng and other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/08G01B11/24G01B11/28
Inventor 陈杰
Owner 陈杰
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