CN102466463A - Method for measuring green quantity of irregular crown-shaped standing tree - Google Patents
Method for measuring green quantity of irregular crown-shaped standing tree Download PDFInfo
- Publication number
- CN102466463A CN102466463A CN2010105406704A CN201010540670A CN102466463A CN 102466463 A CN102466463 A CN 102466463A CN 2010105406704 A CN2010105406704 A CN 2010105406704A CN 201010540670 A CN201010540670 A CN 201010540670A CN 102466463 A CN102466463 A CN 102466463A
- Authority
- CN
- China
- Prior art keywords
- standing tree
- tree
- crown
- standing
- cloud data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a method for measuring the green quantity of an irregular crown-shaped standing tree, which comprises the steps of: using a three-dimensional laser scanning system to obtain the standing tree point cloud data; cutting the crown of the whole standing tree from top down in multi-section and equal-distance manner; using a least square method to fit the curved surfaces of the cut cones and circular truncated cones to obtain all the curved surfaces so as to obtain the volumes and the surface areas of the curved surfaces; and finally performing accumulation and summation on the equidistantly cut cones and circular truncated cones to obtain the volume and the surface area of the whole tree crown. The method greatly improves the accuracy of measuring the green quantity of the standing tree, reduces the working amount, improves the working efficiency and has the omnibearing characteristic.
Description
One, technical field
The invention relates to the method for forest inventory investigation, particularly a kind of irregular crown standing tree green quantity measuring method.
Two, technical background
" greening three-dimensional amount " claimed " green amount " again, refers to the spatial volume that the green plants cauline leaf is occupied, with the m of unit
3Calculate.For plane amount (like afforestation coverage rate); Three-dimensional green figureofmerit can more properly reflect the rationality and the ecological benefits level of vegetation composition; Embody the integral level of urban afforestation; It provides theoretical foundation for ecological landscape research, makes the urban landscaping quantitative examination that qualitative leap take place, and receives many relevant persons' in the industry attention.The calculating of traditional green amount of standing tree mainly comprises
What 1. adopt is the total amount of leaf area, through measuring the mathematical regression expression formula of having set up different plants individual " green amount " in a large number on the spot.
2. adopt the method for " with the three-dimensional amount of plane amount simulation "; Through on the infrared boat sheet of coloured silk, dividing seeds to pursue the method that green amount is calculated in strain,, set up the dependent equation of the hat width of cloth and crown height through regretional analysis to different seeds; Obtain crown height according to the hat width of cloth, thereby try to achieve the tree crown volume of trees.
3. adopt " stereophotogrammetry " method, promptly confirm the vegetation height, on the boat sheet, measure the area of this vegetation, and judge VEGETATION TYPES, calculate the green value of experimental formula Calculation of Three Dimensional according to certain green amount by the horizontal parallax of adjacent two boat sheets.
Traditional method exists all that workload is big, precision is low, the cycle is long, investment is big, is difficult to truly measure the shortcoming of tree crown volume, implements quite difficulty.And for arbor, whole strain tree crown is represented its green amount, and for sparse tree crown, the precision of measurement will reduce.
Three, summary of the invention
In order to overcome a lot of troubles that existing method is brought inevitably in the green amount instrumentation of forest standing tree process; Increase work efficiency; The purpose of this invention is to provide a kind of irregular crown standing tree green quantity measuring method, it has overcome the above-mentioned shortcoming that existing method exists.
The objective of the invention is to realize like this:
At first, the root at target standing tree sticks target paper, employing three-dimensional laser scanning system acquisition standing tree cloud data; Secondly, the standing tree tree crown is provided from the standing tree cloud data, whole standing tree tree crown is carried out from top to bottom multistage is equidistant to be cut apart, topmost is a cone, down is a plurality of round platforms successively; Then; According to target paper the standing tree tree crown is rotated to East, West, South, North, the southeast, southwest, northeast, eight directions in northwest; The coordinate of outermost point is proposed respectively, and the mark period, reject left point; The utilization least square method is carried out match to cone and the round platform curved surface of cutting apart, and obtains the volume and the surface area of each curved surface and then acquisition curved surface; At last, to the carrying out accumulative total summation of equidistant cone of cutting apart and round platform, obtain the volume and the surface area of whole tree crown.
It is following wherein to adopt three-dimensional laser scanning system to obtain standing tree cloud data method: at first, settle three-dimensional laser scanner according to the position of standing tree, adjacent degree, crown form; Secondly, the standing tree placed around reference sphere in need scanning clearly separates adjacent standing tree; Once more, stick target paper, correctly obtain the direction of standing tree at the root of arbitrary target standing tree; Then, in each station scanning, utilize digital camera to take, the covering of adjacent standing tree provides reference during for the extraction data; At last, after all website scannings are accomplished, carry out match, extract each standing tree, obtain the standing tree cloud data by reference sphere.
The present invention has following advantage:
1. utilize three-dimensional laser scanning system scanning standing tree, need not cut down standing tree, protected forest;
2. utilize cloud data to extract the standing tree tree crown, and tree crown is carried out multistage cut apart, only extract external point, delete unnecessary cloud data, precision is higher;
3. utilize cloud data to carry out surface fitting, obtain the standing tree volume of Any shape tree crown, set up green amount model, this measurement has omnibearing characteristics.
Four, embodiment
At first select standing tree; In three-dimensional scanner system, set parameters such as scanning angle, quality of scanning, settle laser scanner, at the standing tree placed around reference sphere of need scanning according to the position of its standing tree, adjacent degree, crown form etc.; Adjacent standing tree can very clearly be separated between the different in principle scanning movements; And the standing tree that is scanned between the different websites can be seen three or three above reference spheres fully, is convenient to can be good at extracting target standing tree, sticks target paper at the root of arbitrary target standing tree; Be the correct direction that obtains standing tree during for deal with data, reference frame be provided for calculating the hat width of cloth afterwards; In each station scanning, utilize digital camera to take, the covering of adjacent standing tree provides reference during for the extraction data, and after all websites scannings were accomplished, output data was carried out match by reference sphere, extracts each standing tree, obtains cloud data.
The whole tree crown that from cloud data, extracts carried out from top to bottom multistage is equidistant to be cut apart; Topmost is an approximate cone; Down be a plurality of approximate round platforms successively, in software, rotate to East, West, South, North, the southeast, southwest, northeast, eight directions in northwest, propose the coordinate of outermost point respectively according to target paper applying neural network and genetic algorithm; And mark period; Reject left point, use least square method to carry out surface fitting then, obtain the volume and the surface area of each curved surface and then acquisition curved surface; A plurality of curved surfaces that add up at last to sue for peace obtain the volume and the surface area of whole tree crown, can be generalized to the green amount modelling of crown irregular different seeds with the method.
Claims (2)
1. irregular crown standing tree green quantity measuring method is characterized in that: at first, stick target paper at the root of target standing tree, adopt three-dimensional laser scanning system to obtain the standing tree cloud data; Secondly, the standing tree tree crown is provided from the standing tree cloud data, whole standing tree tree crown is carried out from top to bottom multistage is equidistant to be cut apart, topmost is a cone, down is a plurality of round platforms successively; Then; According to target paper the standing tree tree crown is rotated to East, West, South, North, the southeast, southwest, northeast, eight directions in northwest; The coordinate of outermost point is proposed respectively, and the mark period, reject left point; The utilization least square method is carried out match to cone and the round platform curved surface of cutting apart, and obtains the volume and the surface area of each curved surface and then acquisition curved surface; At last, to the carrying out accumulative total summation of equidistant cone of cutting apart and round platform, obtain the volume and the surface area of whole tree crown.
2. a kind of irregular crown standing tree green quantity measuring method according to claim 1; It is characterized in that; It is following wherein to adopt three-dimensional laser scanning system to obtain standing tree cloud data method: at first, settle three-dimensional laser scanner according to the position of standing tree, adjacent degree, crown form; Secondly, the standing tree placed around reference sphere in need scanning clearly separates adjacent standing tree; Once more, stick target paper, correctly obtain the direction of standing tree at the root of arbitrary target standing tree; Then, in each station scanning, utilize digital camera to take, the covering of adjacent standing tree provides reference during for the extraction data; At last, after all website scannings are accomplished, carry out match, extract each standing tree, obtain the standing tree cloud data by reference sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105406704A CN102466463A (en) | 2010-11-12 | 2010-11-12 | Method for measuring green quantity of irregular crown-shaped standing tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105406704A CN102466463A (en) | 2010-11-12 | 2010-11-12 | Method for measuring green quantity of irregular crown-shaped standing tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102466463A true CN102466463A (en) | 2012-05-23 |
Family
ID=46070386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105406704A Pending CN102466463A (en) | 2010-11-12 | 2010-11-12 | Method for measuring green quantity of irregular crown-shaped standing tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102466463A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185557A (en) * | 2012-08-13 | 2013-07-03 | 谢鸿宇 | Tree three-dimensional green biomass measurement method and system |
| CN103196368A (en) * | 2013-03-18 | 2013-07-10 | 华东师范大学 | Automatic estimation method for single tree three-dimensional green quantity based on vehicle-mounted laser scanning data |
| CN103256895A (en) * | 2013-05-09 | 2013-08-21 | 四川九洲电器集团有限责任公司 | Method for carrying out forestry investigation with three-dimensional laser scanner utilized |
| 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 |
| CN104457574A (en) * | 2014-12-11 | 2015-03-25 | 天津大学 | Device for measuring volume of irregular object in non-contact measurement mode and method |
| CN104655011A (en) * | 2015-01-28 | 2015-05-27 | 佛山科学技术学院 | Non-contact optical measurement method for volume of irregular convex-surface object |
| CN105371789A (en) * | 2015-10-09 | 2016-03-02 | 南京大学 | Method for utilizing aviation laser point cloud to calculate effective leaf area index |
| CN106017325A (en) * | 2014-07-16 | 2016-10-12 | 佛山科学技术学院 | Improved non-contact optical measurement method for complex surface and irregular object volume |
| CN106839987A (en) * | 2017-03-30 | 2017-06-13 | 信阳师范学院 | A kind of stem volume acquisition methods based on trunk surface model |
| CN107063114A (en) * | 2016-11-16 | 2017-08-18 | 信阳师范学院 | A kind of trunk data reduction method split based on section |
| CN108168426A (en) * | 2017-11-29 | 2018-06-15 | 华侨大学 | A kind of measuring method of marine abrasion column volume |
| CN108335354A (en) * | 2018-03-01 | 2018-07-27 | 东北林业大学 | A kind of greedy projection Triangulation Algorithm list wood method for reconstructing based on Moving Least |
| CN110702000A (en) * | 2018-07-10 | 2020-01-17 | 北京林业大学 | Method for calculating standing timber volume based on improved Hough change laser radar point cloud data |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2010
- 2010-11-12 CN CN2010105406704A patent/CN102466463A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 《北京林业大学学报》 20070831 熊妮娜等 一种基于三维激光扫描系统测量树冠体积方法的研究__以油松为例 第29卷, * |
| 冯仲科等: "基于三维激光扫描成像系统的树冠生物量研究", 《北京林业大学学报》, vol. 29, 31 August 2007 (2007-08-31) * |
| 熊妮娜等: "一种基于三维激光扫描系统测量树冠体积方法的研究――以油松为例", 《北京林业大学学报》, vol. 29, 31 August 2007 (2007-08-31) * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185557A (en) * | 2012-08-13 | 2013-07-03 | 谢鸿宇 | Tree three-dimensional green biomass measurement method and system |
| CN103185557B (en) * | 2012-08-13 | 2016-01-20 | 谢鸿宇 | A kind of tree three-dimensional green measuring method and system |
| 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 |
| CN103196368A (en) * | 2013-03-18 | 2013-07-10 | 华东师范大学 | Automatic estimation method for single tree three-dimensional green quantity based on vehicle-mounted laser scanning data |
| CN103196368B (en) * | 2013-03-18 | 2015-07-22 | 华东师范大学 | Automatic estimation method for single tree three-dimensional green quantity based on vehicle-mounted laser scanning data |
| CN103256895A (en) * | 2013-05-09 | 2013-08-21 | 四川九洲电器集团有限责任公司 | Method for carrying out forestry investigation with three-dimensional laser scanner utilized |
| CN106017325A (en) * | 2014-07-16 | 2016-10-12 | 佛山科学技术学院 | Improved non-contact optical measurement method for complex surface and irregular object volume |
| CN106017325B (en) * | 2014-07-16 | 2018-11-02 | 佛山科学技术学院 | Improved non-contact optical measurement method for complex surface and irregular object volume |
| CN104457574A (en) * | 2014-12-11 | 2015-03-25 | 天津大学 | Device for measuring volume of irregular object in non-contact measurement mode and method |
| CN104655011A (en) * | 2015-01-28 | 2015-05-27 | 佛山科学技术学院 | Non-contact optical measurement method for volume of irregular convex-surface object |
| CN104655011B (en) * | 2015-01-28 | 2018-01-30 | 佛山科学技术学院 | A kind of noncontact optical measurement method of irregular convex surface object volume |
| CN105371789A (en) * | 2015-10-09 | 2016-03-02 | 南京大学 | Method for utilizing aviation laser point cloud to calculate effective leaf area index |
| CN105371789B (en) * | 2015-10-09 | 2019-02-19 | 南京大学 | A method of utilizing airborne laser point cloud computing effective leaf area index |
| CN107063114A (en) * | 2016-11-16 | 2017-08-18 | 信阳师范学院 | A kind of trunk data reduction method split based on section |
| CN107063114B (en) * | 2016-11-16 | 2019-10-01 | 信阳师范学院 | A kind of trunk data reduction method based on tangent plane segmentation |
| CN106839987A (en) * | 2017-03-30 | 2017-06-13 | 信阳师范学院 | A kind of stem volume acquisition methods based on trunk surface model |
| CN108168426A (en) * | 2017-11-29 | 2018-06-15 | 华侨大学 | A kind of measuring method of marine abrasion column volume |
| CN108168426B (en) * | 2017-11-29 | 2020-09-04 | 华侨大学 | Method for measuring volume of sea corrosion column |
| CN108335354A (en) * | 2018-03-01 | 2018-07-27 | 东北林业大学 | A kind of greedy projection Triangulation Algorithm list wood method for reconstructing based on Moving Least |
| CN110702000A (en) * | 2018-07-10 | 2020-01-17 | 北京林业大学 | Method for calculating standing timber volume based on improved Hough change laser radar point cloud data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102466463A (en) | Method for measuring green quantity of irregular crown-shaped standing tree | |
| CN102305622A (en) | Arbor three-dimensional green quantity measuring method based on three-dimensional laser scanner | |
| Hajek et al. | Mechanical abrasion, and not competition for light, is the dominant canopy interaction in a temperate mixed forest | |
| Yu et al. | Forest ecosystem restoration due to a national conservation plan in China | |
| Watanabe et al. | Rice morphogenesis and plant architecture: measurement, specification and the reconstruction of structural development by 3D architectural modelling | |
| CN101520307A (en) | Method for measuring tree-crown volume fractal dimension by applying three-dimensional laser image-scanning system | |
| CN203687879U (en) | Crop canopy monitoring device | |
| CN104778693A (en) | Leaf area index calculation method based on projection algorithm and active contour model | |
| CN102252612B (en) | Method for measuring crown volume based on elevation isoline method | |
| CN111091079B (en) | TLS-based method for measuring vegetation advantage single plant structural parameters in friable region | |
| CN101435873A (en) | Remote sense monitoring method of medicinal plant resource based on concomitant species and community classification | |
| CN104820065B (en) | A kind of carbon remittance measuring method of city individual plant arbor | |
| CN103337092B (en) | Branches of fruit trees framework extraction method | |
| CN204461325U (en) | A kind of cover degree for herbaceous plant sample ground measures equipment | |
| CN107403233A (en) | A kind of Plant Type in Maize optimization method and system | |
| CN103185557B (en) | A kind of tree three-dimensional green measuring method and system | |
| CN113287462A (en) | Method for transforming pure fir forest into broad fir mixed forest | |
| CN102930596B (en) | Establishing method for three-dimensional model of vine cane plant | |
| CN102810213B (en) | Method for building dynamic 3D (three-dimensional) greenness degree model | |
| Panahi et al. | Application of visual surveys to estimate acorn production of Brants oak (Quercus brantii Lindl.) in northern Zagros Forests of Iran | |
| CN103942835B (en) | The construction method of Brassica campestris L population model | |
| Zeyu et al. | 3D Forest-tree Modeling Approach Based on Loading Segment Models | |
| CN104792319B (en) | A kind of standing forest precisely cuts the selection technique of goal tree selectively | |
| CN107369206B (en) | Method and system for constructing three-dimensional model of corn group | |
| Kruijt | Estimating canopy structure of an oak forest at several scales |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |