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Method and equipment for evaluating urban tree ecosystem loss caused by typhoon

A technology of ecosystems and trees, applied in image data processing, instruments, technology management, etc., can solve the problems of low speed and precision of evaluation methods, achieve the effect of increasing information processing speed, improving clarity, and reducing the difficulty of information processing

Pending Publication Date: 2020-09-11
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In view of this, the purpose of one or more embodiments of this description is to propose a method and equipment for assessing the loss of urban tree ecosystems caused by typhoons, so as to solve the problems of low speed and accuracy of assessment methods in the prior art

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  • Method and equipment for evaluating urban tree ecosystem loss caused by typhoon
  • Method and equipment for evaluating urban tree ecosystem loss caused by typhoon
  • Method and equipment for evaluating urban tree ecosystem loss caused by typhoon

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments.

[0038] In order to solve the problem of low evaluation speed and accuracy of the method for evaluating the loss of typhoon to urban tree ecosystem in the prior art, one or more embodiments of this specification provide a method for evaluating the loss of typhoon to urban tree ecosystem, including :

[0039] Obtain the image information of the fallen trees in the area, and preprocess the obtained information to obtain the preprocessed image information of the fallen trees;

[0040] Obtain the sample points of the trunks of the fallen trees from the preprocessed image information of the fallen trees, calculate the eigenvalues ​​of the sample points of the trunks of the fallen trees, and set the threshold of the sample points of the trunks of the fallen trees accordin...

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Abstract

One or more embodiments of the invention provide a method and equipment for evaluating urban tree ecosystem loss caused by typhoon. The method includes: acquiring lodging tree image information in anarea; acquiring lodging tree trunk sample points from the acquired information, calculating thresholds of the lodging tree trunk sample points, segmenting the acquired information, synchronously processing the segmented information based on the thresholds, calculating volumes of screened lodging trees, and calculating total mass of the lodging trees in the region based on the volumes of the screened lodging trees; calculating the lost carbon sequestration value and oxygen release value of the lodging trees in the region based on the total mass of the lodging trees in the region; in the information processing process, segmenting the acquired information, and enabling the segmented information to be subjected to synchronous access processing. The information processing difficulty is reduced,the information processing speed is increased, the speed of the evaluation method is increased, and meanwhile, the definition of the acquired information and the accuracy of the evaluation method areimproved by combining the aerial photography technology of high-resolution frequency conversion.

Description

technical field [0001] One or more embodiments of this specification relate to the technical field of methods for assessing typhoon damage to urban tree ecosystems, and in particular to a method and equipment for assessing typhoon damage to urban tree ecosystems. Background technique [0002] Under the influence of global climate change, typhoons have landed on coastal cities more and more frequently, causing serious impacts on socio-economic systems, built-up systems and natural ecosystems. Typhoons not only cause huge economic losses, but also have an impact that cannot be ignored on the natural ecosystems of coastal cities. In 2012, the super typhoon "Vicent" damaged 115,000 trees in Shenzhen. In 2016, the super typhoon "Meranti" landed in Xiamen City, causing direct economic losses of 10.2 billion yuan and damage to 90% of the city's trees. Urban green space is an important part of the urban ecosystem, which has the functions of maintaining the carbon and oxygen balanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/13G06T7/136G06T7/62G06T7/90G06K9/62G06Q50/26
CPCG06T7/13G06T7/136G06T7/62G06T7/90G06Q50/26G06T2207/30188G06F18/24Y02P90/84
Inventor 汤剑雄崔胜辉徐礼来李彦旻
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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