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Method for calculating aboveground biomass based on UAV remote sensing images

A remote sensing image and biomass technology, applied in computing, image enhancement, image analysis, etc., can solve problems such as time-consuming and labor-intensive field surveys, environmental damage, etc., achieve low cost, improve work efficiency, and solve the effects of long revisit cycles

Inactive Publication Date: 2018-03-23
辽宁远天城市规划有限公司 +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method for measuring and calculating aboveground biomass based on UAV remote sensing images to solve the problems that traditional methods are easy to cause damage to the environment, field surveys are time-consuming and laborious, and there are areas that cannot be reached.

Method used

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Embodiment 1

[0029] In the research area, the typical sample selection method is used to select the research area and set up the experimental sample plot. The fixed-wing or rotary-wing unmanned aerial vehicle flies according to the pre-planned flight route, the ground station checks the flight route and status in real time, and the unmanned aerial vehicle obtains the remote sensing image of the research area in real time;

[0030] Import the UAV image into the stitching software, detect and match multiple features on the image, and automatically complete the geolocation and stitching. The position of the image is recorded by the UAV's onboard navigation GPS. In order to better stitch UAV images, it is necessary to manually assign ground control points (GCPs) to complete the study of a small number of evenly distributed coverage areas.

[0031] In order to improve the absolute spatial accuracy of the stitched images, GCPs are analyzed using Differential Global Positioning System (DGPS), and...

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Abstract

The invention discloses a method for calculating the aboveground biomass based on UAV remote sensing images, and belongs to the field of UAV remote sensing application. The method includes the steps of obtains remote sensing images of a research area through a UAV and performing splicing, performing interpretation and analysis of the spliced remote sensing images, obtaining main information of trees in the research area, measuring diameter at breast height (DBH) information of the trees in a small area on the site, combining with crown breadth information of the obtained tree species, substituting into a DBH-crown breadth model: D=aCb, determining values of a and b in the model, and obtaining DBH-crown breadth model information of each tree species in the research area; substituting the DBH-crown breadth model information into a pre-established northeast China forest DBH-biomass empirical equation, and obtaining a crown breadth-biomass equation of each tree species in the research area; and through the obtained tree crown breadth information and a crown breadth-biomass model, calculating the aboveground biomass in the research area. The method can quickly obtain the biomass in theresearch area.

Description

technical field [0001] The invention relates to the field of UAV remote sensing application technology, and in particular provides a ground biomass measurement method based on UAV remote sensing images. Background technique [0002] With the rapid development of industry and the continuous increase of human activities, the damage caused by human beings to the environment has also increased. In particular, the greenhouse effect caused by the excessive emission of certain gases has become a major problem facing the world. In order to alleviate the impact of the greenhouse effect on human life, the 20th round of the Conference of the Parties to the United Nations Framework Convention on Climate Change was held in Lima, the capital of Peru, in December 2014. CO2 emission is controlled below 10 billion tons. From November 30th to December 11th, 2015, the 21st United Nations Climate Change Conference was held at Le Bourget Exhibition Center in the northern suburbs of Paris, with...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T3/40G01C11/04
CPCG01C11/04G06T3/4038G06T7/0002G06T2207/10032G06T2207/30188
Inventor 朱京海刘合鑫周雯慧问鼎刘冬烨
Owner 辽宁远天城市规划有限公司
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