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Method and system for quickly identifying shrub distribution range of shrub grassland

A technology of distribution range and shrubs, which is applied in the field of image processing, can solve the problem of being unable to visually distinguish shrubland grasslands and shrubs, and achieve the effect of ensuring sustainable development and easy operation

Pending Publication Date: 2022-04-15
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventors found that in the vegetation index images such as NDVI and EVI obtained from multi-spectral remote sensing images, it is impossible to directly distinguish the grassland and shrubs in the shrubby grassland directly through the vegetation index values ​​or images.

Method used

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  • Method and system for quickly identifying shrub distribution range of shrub grassland

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a method for quickly identifying the distribution range of shrubs in the shrubland steppe;

[0034] like figure 1 As shown, a method to quickly identify the distribution range of shrubland grassland shrubs, including:

[0035] S101: Obtain the image of the first grassland shrubbery area within the first set time range in the designated area;

[0036] S102: From the image of the first grassland shrubbery area, consider the area whose pixel value is greater than the set threshold as a grassland area where shrubbery does not occur;

[0037] S103: Obtain an image of the second grassland shrubbery area within the second set time range in the designated area;

[0038] S104: Align the image of the second grassland shrubbery area with the image of the first grassland shrubby area, remove the grassland area that has not undergone shrubbery from the aligned second grassland shrubby area image, and perform the image alignment on the remaining The area w...

Embodiment 2

[0054] This embodiment provides a system for quickly identifying the distribution range of shrubs in grassland shrubs;

[0055] A system for quickly identifying the distribution range of shrubland grassland shrubs, including:

[0056] The first acquisition module is configured to: acquire the image of the first grassland shrubbery area within the first set time range of the designated area;

[0057] A screening module, which is configured to: from the first grassland shrubby area image, consider an area with a pixel value greater than a set threshold as a grassland area where no shrubby area has occurred;

[0058] The second acquisition module is configured to: acquire an image of the second grassland shrubbery area within the second set time range of the designated area;

[0059] The output module is configured to: perform image alignment on the image of the second grassland shrubbery area and the image of the first grassland shrubby area, and remove the non-shrubby area from ...

Embodiment 3

[0064] This embodiment also provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein, the processor is connected to the memory, and the one or more computer programs are programmed Stored in the memory, when the electronic device is running, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in Embodiment 1 above.

[0065] It should be understood that in this embodiment, the processor can be a central processing unit CPU, and the processor can also be other general-purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, o...

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Abstract

The invention discloses a method and a system for quickly identifying a shrubby grassland shrub distribution range. The method comprises the following steps: acquiring a first grassland shrubby area image in a first set time range of a specified area; in the first grassland shrubbed area image, the area with the pixel value larger than a set threshold value is regarded as a grassland area without shrubbed; acquiring a second grassland shrubby area image in a second set time range of the specified area; and carrying out image alignment on the second grassland shrub region image and the first grassland shrub region image, removing a grassland region which is not shrub from the aligned second grassland shrub region image, and marking the region of which the pixel point value is greater than a set threshold value in the remaining region to obtain a shrub distribution range.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and system for quickly identifying the distribution range of shrubs in shrubbed grasslands. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] When the density, cover and biomass of grasslands increase in the grassland ecosystem, it will develop into shrubland grasslands. The emergence of shrublandization poses a threat to the sustainable development of the ecosystem and the livestock industry, and once it begins to appear, it is difficult to reverse. It is a common ecological problem in many arid and semi-arid regions. [0004] The inventors found that in vegetation index images such as NDVI and EVI obtained from multispectral remote sensing images, it is impossible to directly distinguish the grassland and shrubs in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/10G06V20/52G06V10/26
Inventor 范瑛吴出尘
Owner SHANDONG NORMAL UNIV
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