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An urban functional area identification method and device based on a pixel scale

A technology of urban functions and identification methods, applied in the field of geographic information, can solve the problems of difficult extraction, high-resolution remote sensing images affected by shadows, unfavorable for accurate identification of urban functional areas, etc., and achieve the effect of accurate urban functional area information.

Active Publication Date: 2020-05-19
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the recognition of urban functional areas is mainly based on high-resolution remote sensing images, but the high-resolution remote sensing images are seriously affected by shadows, and the extraction is relatively difficult, which is not conducive to the accurate identification of urban functional areas

Method used

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  • An urban functional area identification method and device based on a pixel scale
  • An urban functional area identification method and device based on a pixel scale
  • An urban functional area identification method and device based on a pixel scale

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0037] It should be clear that the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.

[0038] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include ...

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Abstract

The invention relates to an urban functional area identification method and device based on a pixel scale. The method includes performing Pixel-level fusion on the interest point data, the user heat map and the mobile phone signaling map; obtaining fused images, fusing the remote sensing data with social media data such as interest points, user popularity maps and mobile phone information; takingthe high-resolution remote sensing image as an input variable, taking the training sample as an output variable, and constructing the urban functional area recognition model and training the same; obtaining the probability that each pixel in the research area belongs to each urban functional area by means of the random forest algorithm. Compared with the prior art, urban functional area information can be extracted from a finer scale, and more accurate urban functional area information is obtained.

Description

technical field [0001] The invention relates to the technical field of geographic information, in particular to a method and device for identifying urban functional areas based on pixel scale. Background technique [0002] The urban functional area is the functional division in the city, and it is one of the basic constituent units of the city. The current identification of urban functional areas is mainly based on high-resolution remote sensing images, but high-resolution remote sensing images are seriously affected by shadows, and the extraction is relatively difficult, which is not conducive to the accurate identification of urban functional areas. Contents of the invention [0003] Embodiments of the present application provide a method and device for identifying urban functional areas based on a pixel scale, which can accurately identify specific urban functional areas. Described technical scheme is as follows: [0004] In the first aspect, the embodiment of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/62
CPCG06V20/176G06V10/25G06F18/24323G06F18/214Y02A30/60
Inventor 邓应彬许剑辉胡泓达陈仁容
Owner GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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