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Method for establishing tree volume table using three dimensional laser scanning system

A three-dimensional laser and scanning system technology, applied in the field of forest resource survey, can solve the problem of large forest damage and achieve the effect of low labor intensity and high efficiency

Inactive Publication Date: 2007-08-01
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compilation of the traditional standing timber volume table needs to cut down a large number of trees, which will cause great damage to the forest. Today, when the ecological environment is increasingly valued, this method is not advisable.

Method used

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Examples

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Embodiment Construction

[0009] First, design the position of each scanning station and control target according to the position, size and shape of the standard standing trees and the key tree measuring factors that need to be obtained, set up the laser scanner on the selected measuring station, adjust the parameters and attitude, and use the digital The camera shoots the standing tree, scans it, obtains the spatial lattice data of the standing tree, and at the same time obtains the center of the control target to obtain a point cloud image; through coordinate matching, the different point cloud images of the standing tree are "stitched" in the same coordinate system, and after data pre-processing The realization of functions such as processing and extraction finally establishes the three-dimensional model of the standing tree; use the software that comes with the three-dimensional laser scanner to process and extract tree measurement factors such as tree height, diameter at breast height, volume and cr...

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Abstract

This invention discloses one method to compile wood list meter by 3D laser scanning system, which comprises the following steps: without fallen trunk, through 3D laser scanning system getting 3D space point array data to establish wood 3D space mode; on the mode, using 3D laser scanning system software to realize tree factor such as height, breast radium, wood product and head range extraction to compile wood product method.

Description

technical field [0001] The invention relates to a method for investigating forest resources, in particular to a method for measuring the volume of standing trees when they are not felled, and using a three-dimensional laser scanning system to prepare a volume table for standing trees. technical background [0002] For many years, when compiling the standing timber volume table in forestry, most of them adopt the traditional method, that is, cut down a large number of standing trees as sample trees, calculate the volume by using the divisional formula of felled wood, and fit the volume equation, and then compile the volume table; This method causes great damage to the forest; in practice, the standing tree division quadrature method, cumulative height method and other standing tree division quadrature methods and the height-seeking method are used to measure the volume of standing trees. Although the damage to the forest has been avoided, it is limited to measuring instruments...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00G06F19/00
Inventor 冯仲科林宗坚韩光瞬
Owner BEIJING FORESTRY UNIVERSITY
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