CN107543498A - Method based on three-dimensional laser scanning technique monitoring trunk growth - Google Patents
Method based on three-dimensional laser scanning technique monitoring trunk growth Download PDFInfo
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- CN107543498A CN107543498A CN201710555371.XA CN201710555371A CN107543498A CN 107543498 A CN107543498 A CN 107543498A CN 201710555371 A CN201710555371 A CN 201710555371A CN 107543498 A CN107543498 A CN 107543498A
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Abstract
In single tree measurement field of the method based on three-dimensional laser scanning technique monitoring trunk growth in tree surveying, instrument and method different from the past are designed for the measurement of the one-dimensional amount of tree breast-height diameter, but measured using three-dimensional laser scanning technique by establishing the two dimension of tree three-dimensional model extraction trees basal area and change in shape, greatly improve the monitoring precision to trunk growth.
Description
Technical field
The present invention relates to the single tree measurement in tree surveying.
Background technology
Promptly and accurately know forest biomass change fulfil the United Nations for country《The United Nations Framework Convention on Climate Change》Have
Important meaning, the Accurate Determining of higher factors of enumeration are significant for measuring and calculating forest biomass.On measuring trees
The device and technology of the measurement of factors of enumeration are various and fruitful, have many outstanding technical methods, such as Wang Botao et al. Shens
Invention please《Tree measurement method based on intelligent terminal camera lens》(publication number：CN105066877A), compared to traditional assize side
Formula can it is more accurate, easily obtain the information such as the height of tree, the diameter of a cross-section of a tree trunk 1.3 meters above the ground, hat width；The invention of the applications such as another Zhang Xiaopeng《Based on single three
Tie up the tree measurement and method for reconstructing of laser scanning》(publication number：CN101488226A), three-dimensional laser scanning technique make use of to build
Having found the virtual image of trees realizes the huge technological progress in assize field.But current instrument and method are designed for
The measurement of the one-dimensional amount of tree breast-height diameter, and the growth of trunk thickening really shows as the two dimension amount of basal area change, therefore root
There will be certain deviation for the biomass data determined according to the above method.
The content of the invention
The present invention is in view of the above-mentioned problems, therefore set forth herein broken using three-dimensional laser scanning technique by extracting trees breastheight
Area and the method for change in shape monitoring trunk growth.
The present invention uses following experimental program to achieve the above object：
Using three-dimensional laser scanning technique, the cloud data that three-dimensional laser scanner gathers is established with three-dimensional engineering software
Tree three-dimensional model, trunk basal area and shape are extracted from model by relevant art means, then different pieces of information is adopted
The breastheight section overlay analysis for collecting the time monitors the purpose grown to reach.
Good effect of the present invention is：Tree three-dimensional model is established, trees basal area and shape are extracted, to trunk
Growth monitoring is more accurate.
Brief description of the drawings
Fig. 1 is the experimental program flow chart of the present invention.
Fig. 2 is committed step design sketch.
Embodiment
Explanation and concrete operations are described in further details to the present invention below in conjunction with the accompanying drawings.Embodiment step with
Experimental program flow chart of steps corresponds, such as Fig. 1：
1. collecting data setting up the three-dimensional laser scanners of FARO Photon 120 on the spot, concrete operations make with reference to instrument
Use specification.
2. after the cloud data of collection is carried out into splicing registration with three-dimensional engineering software Geomagic Studio and pass through conjunction
And point object function with generating complete sample cloud data (Fig. 2 a).
3. converting visual angle manual separation by three dimensional pattern extracts single wooden cloud data (Fig. 2 b).
4 establish tree three-dimensional model using TIN modeling (TIN), can carry measurement work after building up with software
Tool can be extracted (Fig. 2 c) to factors of enumeration such as the diameter of a cross-section of a tree trunk 1.3 meters above the ground, the height of trees.
5 carry out cutting extraction section configuration with crop tool at the breastheight of trunk model, then by same strain trees not
Threedimensional model with sweep time is transformed into the same coordinate system superposition, and the bust curve of different times is extracted (Fig. 2 d).
According to the curve extracted, carry instrument using software and girth and area can be read, be computed can obtain trees in surface sweeping
The index of the reaction arboreal growth change such as breast diameter growth amount, basal area increment and growth rate in interval.
Claims (3)
1. based on the method for three-dimensional laser scanning technique monitoring trunk growth, it is characterized in that：Built using three-dimensional laser scanning technique
Vertical tree three-dimensional model.
2. trunk basal area and shape are extracted from Three-dimension Tree model.
3. the breastheight section overlay analysis of different data acquisition time is grown with monitoring trunk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710555371.XA CN107543498A (en) | 2017-07-10 | 2017-07-10 | Method based on three-dimensional laser scanning technique monitoring trunk growth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710555371.XA CN107543498A (en) | 2017-07-10 | 2017-07-10 | Method based on three-dimensional laser scanning technique monitoring trunk growth |
Publications (1)
| Publication Number | Publication Date |
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| CN107543498A true CN107543498A (en) | 2018-01-05 |
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| CN201710555371.XA Pending CN107543498A (en) | 2017-07-10 | 2017-07-10 | Method based on three-dimensional laser scanning technique monitoring trunk growth |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008564A (en) * | 2006-01-16 | 2007-08-01 | 北京林业大学 | Method for establishing tree volume table using three dimensional laser scanning system |
| CN101520307A (en) * | 2008-02-26 | 2009-09-02 | 中国计量科学研究院 | Method for measuring tree-crown volume fractal dimension by applying three-dimensional laser image-scanning system |
| CN103206944A (en) * | 2013-02-21 | 2013-07-17 | 北京林业大学 | Method for calculating and measuring volume and area of crown based on three-dimensional laser-point cloud data |
| WO2013121272A1 (en) * | 2012-02-15 | 2013-08-22 | 3Ality Digital Systems, Llc | Near target and use of a near target when calibrating a 3d camera |
| CN103278089A (en) * | 2013-02-21 | 2013-09-04 | 北京林业大学 | Tree crown volume and surface area metering technology taking three-dimensional laser scanner as tool |
| CN106197269A (en) * | 2016-06-27 | 2016-12-07 | 北京林业大学 | A kind of Tree Crown Volume based on three-dimensional laser point cloud data and surface area measuring method |
-
2017
- 2017-07-10 CN CN201710555371.XA patent/CN107543498A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008564A (en) * | 2006-01-16 | 2007-08-01 | 北京林业大学 | Method for establishing tree volume table using three dimensional laser scanning system |
| CN101520307A (en) * | 2008-02-26 | 2009-09-02 | 中国计量科学研究院 | Method for measuring tree-crown volume fractal dimension by applying three-dimensional laser image-scanning system |
| WO2013121272A1 (en) * | 2012-02-15 | 2013-08-22 | 3Ality Digital Systems, Llc | Near target and use of a near target when calibrating a 3d camera |
| CN103206944A (en) * | 2013-02-21 | 2013-07-17 | 北京林业大学 | Method for calculating and measuring volume and area of crown based on three-dimensional laser-point cloud data |
| CN103278089A (en) * | 2013-02-21 | 2013-09-04 | 北京林业大学 | Tree crown volume and surface area metering technology taking three-dimensional laser scanner as tool |
| CN106197269A (en) * | 2016-06-27 | 2016-12-07 | 北京林业大学 | A kind of Tree Crown Volume based on three-dimensional laser point cloud data and surface area measuring method |
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Application publication date: 20180105 |
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