Land use classification method, storage medium and computing equipment based on remote sensing images

A technology of remote sensing images and classification methods, applied in the fields of computing, computer parts, character and pattern recognition, etc., can solve the problems of waste of large financial resources, material resources, insufficiency, poor timeliness, etc., and achieve good timeliness, accurate and rapid land use. The effect of categorical, accurate and rapid land use classification

Active Publication Date: 2021-06-29
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, surveying and mapping and field survey methods are mainly used at home and abroad to obtain the land use classification along the rail transit line. Due to the rapid development of land along the rail transit line and the frequent conversion of land use types, using existing methods to obtain the latest land use data is wasteful. A lot of financial and material resources, and poor timeliness, can not meet the needs of practical applications

Method used

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  • Land use classification method, storage medium and computing equipment based on remote sensing images
  • Land use classification method, storage medium and computing equipment based on remote sensing images
  • Land use classification method, storage medium and computing equipment based on remote sensing images

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Embodiment 1

[0046] The invention discloses a land use classification method based on remote sensing images, such as figure 1 shown, including:

[0047] Step 1. Obtain the remote sensing image of the target city; in this embodiment, the remote sensing image of the target city is downloaded through the geospatial data cloud website, and the resolution of the downloaded remote sensing image is 30m.

[0048] In this embodiment, acquiring the remote sensing image of the target city also includes preprocessing the remote sensing image of the target city, and the preprocessing includes image stretching enhancement and band combination, wherein,

[0049] Image stretching refers to the adjustment and transformation of the density and tone of remote sensing images, which is used to improve the visual quality of remote sensing images, highlight the features of ground features in remote sensing images, and improve the performance and effect of remote sensing image interpretation.

[0050] Band combi...

Embodiment 2

[0097] The invention discloses a storage medium, which stores a program. When the program is executed by a processor, the land use classification method based on remote sensing images described in Embodiment 1 is implemented, specifically as follows:

[0098] Obtain remote sensing images of the target city;

[0099] Preliminary interpretation of the remote sensing image of the target city is carried out, and the preliminary classification result of the image is obtained; the preliminary classification result includes four basic categories of green space, water area, open space and building land;

[0100] Obtain the map of the target city, vector extract the rail transit lines and stations in the map, and obtain the vectorized rail transit lines and stations;

[0101] For the area along the rail transit area to be classified by land use, the vectorized rail transit lines and stations are used to crop the remote sensing image, and the remote sensing image of the area along the r...

Embodiment 3

[0107] The invention discloses a computing device, which includes a processor and a memory for storing executable programs of the processor. When the processor executes the program stored in the memory, the remote sensing image-based land use classification method described in Embodiment 1 is realized. ,details as follows:

[0108] Obtain remote sensing images of the target city;

[0109] Preliminary interpretation of the remote sensing image of the target city is carried out, and the preliminary classification result of the image is obtained; the preliminary classification result includes four basic categories of green space, water area, open space and building land;

[0110] Obtain the map of the target city, vector extract the rail transit lines and stations in the map, and obtain the vectorized rail transit lines and stations;

[0111] For the area along the rail transit area to be classified by land use, the vectorized rail transit lines and stations are used to crop the...

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Abstract

The invention discloses a land use classification method based on remote sensing images, a storage medium and a computing device. The method includes: firstly, obtaining a remote sensing image of a target city; initially interpreting the remote sensing image to obtain a preliminary classification result of the image; extracting the target city from a vector The rail transit lines and stations in the map, get the vectorized rail transit lines and stations; use the vectorized rail transit lines and stations to crop the remote sensing image, and cut out the remote sensing images of the area along the rail transit; use Google Earth to obtain the rail transit According to the remote sensing image of the area along the line, according to the POI category and the land use type discrimination signs in the remote sensing image obtained from Google Earth, the remote sensing image of the area along the rail transit area whose preliminary classification result is construction land is interpreted again, and the final land use classification result is obtained; The invention can accurately and quickly classify the land use of urban rail transit lines and station areas, and quickly obtain the land use situation.

Description

technical field [0001] The invention relates to the technical field of land survey and planning, in particular to a land use classification method based on remote sensing images, a storage medium and a computing device. Background technique [0002] From the planning, construction to operation stages of urban rail transit, the state of land use is constantly changing. The mileage of the city's subway lines continues to grow, the regional economic development conditions within the city are different, and the topography is also different, causing complex changes in the use of surrounding land. There are also certain differences between different years. [0003] In real life, it is necessary to obtain the latest land use data when conducting land survey and planning. At present, surveying and mapping and field survey methods are mainly used at home and abroad to obtain the land use classification along the rail transit line. Due to the rapid development of land along the rail...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62
CPCG06F18/214G06F18/24
Inventor 吴大放何尹杰刘艳艳
Owner GUANGZHOU UNIVERSITY
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