CN107091636B - A kind of method that unmanned plane measures tree and grass coverage and length - Google Patents
A kind of method that unmanned plane measures tree and grass coverage and length Download PDFInfo
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- CN107091636B CN107091636B CN201710290020.0A CN201710290020A CN107091636B CN 107091636 B CN107091636 B CN 107091636B CN 201710290020 A CN201710290020 A CN 201710290020A CN 107091636 B CN107091636 B CN 107091636B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/04—Interpretation of pictures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Image Analysis (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of unmanned plane measurement tree and grass coverage and the methods of length, are related to air vehicle technique field, comprising the following steps: 1) unmanned plane takes off on vegetation ground to be measured, and shoots to vegetation to be measured；2) image information of shooting is returned to host computer by unmanned plane；3) in the area of software interface hand drawn vegetation part to be measured, and calculate the area and length, the present invention shoots a whole picture in certain altitude by unmanned plane, later period carries out hand drawn reference area to it, Gardens can be made to become simple and efficient by the calculating of area, and can obtain more accurate numerical value, human cost and time cost are saved, the accuracy and precision of measurement data is improved, simple and effective is more intelligent.
Description
Technical field
The present invention relates to air vehicle technique field, in particular to the method for a kind of unmanned plane measurement tree and grass coverage and length.
Background technique
With the development of economy with the quickening of urban-rural integration process, scale plantation and afforestation are urban planning and constructions
Important component, have a very important role and meaning.In the work of gardens, it usually needs measurement tree and grass coverage and plant
It is managed by length, and by the data record of measurement storage.Current gardens tree and grass coverage is mostly artificial measures and mesh
Estimation is surveyed, this method needs biggish human cost, and time-consuming and laborious and accuracy is not high, the area measured and real area phase
Difference is very remote.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of unmanned plane measurement tree and grass coverage and the methods of length, with solution
Certainly the above-mentioned defects caused by the prior art.
To achieve the above object, the present invention provides technical solution below: a kind of unmanned plane measurement tree and grass coverage and length
Method, comprising the following steps:
1) unmanned plane takes off on vegetation ground to be measured, and shoots to vegetation to be measured；
2) image information of shooting is returned to host computer by unmanned plane；
3) in the area of software interface hand drawn vegetation part to be measured, and the area and length are calculated.
Preferably, the camera of unmanned plane is shot vertically downward in the step 1).
Preferably, in the step 2) unmanned plane also by the information back of shooting height and camera focal length multiple to upper
Position machine.
Preferably, the step 3) further comprises:
31) the hand drawn extracted region vegetation part to be measured on the image of passback；
32) the white pixel point that detection calculates the vegetation part to be measured accounts for the ratio of whole image pixel, then with survey before
Whole figure real area multiplication out obtains the real area for being circled part:
33) two o'clock is chosen in vegetation to be measured extracted in 31) part；
34) detection calculates two o'clock coordinate length, distance and image length comparison between two coordinates in picture is compared, by the data
Line segment length is obtained divided by the ratio of image and whole figure real area.
Preferably, the step 32) and 34) in whole figure real area calculating step are as follows:
41) length of whole figure real area: l=2*h*tan (1/2 α) is calculated
Wherein l is length, and h is shooting height, and α is shooting visual angle；
42) width of whole figure real area: w=l*m is calculated
Wherein l be 41) in calculated length, m be shoot length ratio；
43) whole figure real area: s=l*w.
Preferably, the α in the step 41) by camera itself parameter provide, 42) in m be camera itself mention
The parameter of confession.
It is using the beneficial effect of above technical scheme: a whole picture is shot in certain altitude by unmanned plane, after
Phase carries out hand drawn reference area to it, Gardens can be made to become simple and efficient by the calculating of area, and can obtain
More accurate numerical value, has saved human cost and time cost；
1, the intelligence of gardens tree and grass coverage and status object length survey calculation, easy and high efficiency are improved；
2, gardens measurement data accuracy and accuracy are improved；
3, inexpensive (manpower and time).
Detailed description of the invention
Fig. 1 is the schematic diagram that the present invention calculates whole figure real area.
Fig. 2 is the schematic diagram that the present invention extracts vegetation part to be measured.
Specific embodiment
The embodiment party of the method for a kind of the invention will now be described in detail with reference to the accompanying drawings unmanned plane measurement tree and grass coverage and length
Formula.
Fig. 1 and Fig. 2 shows the specific embodiment of the method for a kind of unmanned plane of present invention measurement tree and grass coverage and length: one
The method of kind unmanned plane measurement tree and grass coverage and length, comprising the following steps:
1) unmanned plane takes off on vegetation ground to be measured, and shoots to vegetation to be measured；
2) image information of shooting is returned to host computer by unmanned plane；
3) in the area of software interface hand drawn vegetation part to be measured, and the area and length are calculated.
In the present embodiment, the camera of unmanned plane is shot vertically downward in the step 1).
In the present embodiment, unmanned plane also returns the information of shooting height and camera focal length multiple in the step 2)
It is transmitted to host computer.
In the present embodiment, the step 3) further comprises:
31) the hand drawn extracted region vegetation part to be measured on the image of passback；
32) the white pixel point that detection calculates the vegetation part to be measured accounts for the ratio of whole image pixel, then with survey before
Whole figure real area multiplication out obtains the real area for being circled part:
33) two o'clock is chosen in vegetation to be measured extracted in 31) part；
34) detection calculates two o'clock coordinate length, distance and image length comparison between two coordinates in picture is compared, by the data
Line segment length is obtained divided by the ratio of image and whole figure real area.
In the present embodiment, the step 32) and 34) in whole figure real area calculating step are as follows:
41) length of whole figure real area: l=2*h*tan (1/2 α) is calculated
Wherein l is length, and h is shooting height, and α is shooting visual angle；
42) width of whole figure real area: w=l*m is calculated
Wherein l be 41) in calculated length, m be shoot length ratio；
43) whole figure real area: s=l*w.
In the present embodiment, the α in the step 41) by camera itself parameter provide, 42) in m be camera
The parameter that itself is provided.
Based on above-mentioned, the prior art of the present invention compared to have the beneficial effect that by unmanned plane certain altitude shoot one it is whole
Body picture, later period carry out hand drawn reference area to it, and Gardens can be made to become simple and efficient by the calculating of area, and
And more accurate numerical value can be obtained, save human cost and time cost；
1, the intelligence of gardens tree and grass coverage and status object length survey calculation, easy and high efficiency are improved；
2, gardens measurement data accuracy and accuracy are improved；
3, inexpensive (manpower and time).
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (5)
1. a kind of method of unmanned plane measurement tree and grass coverage and length, it is characterised in that: the following steps are included:
1) unmanned plane takes off on vegetation ground to be measured, and shoots to vegetation to be measured；
2) image information of shooting is returned to host computer by unmanned plane；
3) in the area of software interface hand drawn vegetation part to be measured, and the area and length are calculated；
The step 3) further comprises:
31) the hand drawn extracted region vegetation part to be measured on the image of passback；
32) the white pixel point that detection calculates the vegetation part to be measured accounts for the ratio of whole image pixel, then with measure before
Whole figure real area multiplication obtains the real area for being circled part；
33) two o'clock is chosen in vegetation to be measured extracted in 31) part；
34) detection calculates two o'clock coordinate length, compares distance and image length comparison between two coordinates in picture, by the data divided by
The ratio of image and whole figure real area obtains line segment length.
2. the method for a kind of unmanned plane measurement tree and grass coverage according to claim 1 and length, which is characterized in that the step
It is rapid 1) in the camera of unmanned plane shoot vertically downward.
3. the method for a kind of unmanned plane measurement tree and grass coverage according to claim 1 and length, which is characterized in that the step
It is rapid 2) in unmanned plane also by the information back of shooting height and camera focal length multiple to host computer.
4. the method for a kind of unmanned plane measurement tree and grass coverage according to claim 1 and length, which is characterized in that the step
It is rapid 32) and 34) in whole figure real area calculating step are as follows:
41) length of whole figure real area: l=2*h*tan (1/2 α) is calculated
Wherein l is length, and h is shooting height, and α is shooting visual angle；
42) width of whole figure real area: w=l*m is calculated
Wherein l be 41) in calculated length, m be shoot length ratio；
43) whole figure real area: s=l*w.
5. the method for a kind of unmanned plane measurement tree and grass coverage according to claim 4 and length, which is characterized in that the step
It is rapid 41) in α provided by the parameter of camera itself, 42) in m be the parameter that provides of camera itself.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108375366B (en) * | 2017-12-19 | 2020-07-07 | 南京嘉谷初成通信科技有限公司 | Land parcel measuring system and method based on unmanned aerial vehicle |
| AU2019275041B2 (en) | 2018-05-25 | 2022-03-24 | Discovery Purchaser Corporation | System and method for vegetation management risk assessment and resolution |
| CN110440758A (en) * | 2019-07-11 | 2019-11-12 | 中国科学院东北地理与农业生态研究所 | Farmland erosion groove two-dimensional signal measuring method based on the non-aerial photograph of unmanned plane |
| CN110823187A (en) * | 2019-11-21 | 2020-02-21 | 中国太平洋财产保险股份有限公司 | Control method and device for measuring area to be measured based on aerial photography |
| CN111006584A (en) * | 2019-11-24 | 2020-04-14 | 西安呱牛信息技术有限公司 | Unmanned aerial vehicle measurement control method and system based on satellite navigation |
| CN111121724A (en) * | 2019-12-31 | 2020-05-08 | 异起(上海)智能科技有限公司 | Method and device for distance measurement by using unmanned aerial vehicle |
| CN114353667A (en) * | 2021-12-15 | 2022-04-15 | 中国船舶重工集团公司第七0九研究所 | Ground target measurement method based on AR and unmanned aerial vehicle monocular vision and application thereof |
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| CN104061904A (en) * | 2013-03-22 | 2014-09-24 | 北京林业大学 | Method for rapidly and accurately determining shape and area of forest gap |
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Effective date of registration: 20190610 Address after: 518131 Longhua Street Songhe Community, Longhua District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Kongling Technology Co.,Ltd. Address before: 518131 Longhua Office, Longhua New District, Shenzhen City, Guangdong Province Applicant before: GUANGDONG RONGQE INTELLIGENT TECHNOLOGY Co.,Ltd. |
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Address after: 518000 1012, Deshengchang building, No. 94, huanguan South Road, Zhangkengjing community, Guanhu street, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen Rongqi Intelligent Technology Co.,Ltd. Address before: 518131 Longhua Street Songhe Community, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Kongling Technology Co.,Ltd. |
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Effective date of registration: 20210927 Address after: 323000-2, floor 3, block a, building 1, No. 268, Shiniu Road, nanmingshan street, Liandu District, Lishui City, Zhejiang Province (Lishui Yonglian Intelligent Manufacturing Industrial Park) Patentee after: Zhejiang Rongqi Technology Co.,Ltd. Address before: 518000 1012, Deshengchang building, No. 94, huanguan South Road, Zhangkengjing community, Guanhu street, Longhua District, Shenzhen, Guangdong Province Patentee before: Shenzhen Rongqi Intelligent Technology Co.,Ltd. |
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Denomination of invention: A Method of Measuring Vegetation Area and Length by UAV Effective date of registration: 20230214 Granted publication date: 20190716 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Lishui Branch Pledgor: Zhejiang Rongqi Technology Co.,Ltd. Registration number: Y2023330000371 |