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Method and device for detecting newly-added construction land

A technology for construction land and detection methods, applied in the field of remote sensing, can solve the problems of large detection method errors, poor applicability, and difficult image acquisition

Active Publication Date: 2021-06-15
BEIJING AEROSPACE HONGTU INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, it has been found that the existing new construction land detection methods, which use image-to-image change detection, are easily affected by interference factors such as atmospheric conditions, solar altitude angles, soil moisture, vegetation seasonal changes, and matching errors. It is difficult to collect the images of the two phases before and after, and the applicability is poor
It can be seen that the existing new construction land detection methods have large errors, low accuracy and poor applicability

Method used

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  • Method and device for detecting newly-added construction land
  • Method and device for detecting newly-added construction land
  • Method and device for detecting newly-added construction land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Please see figure 1 , figure 1 A schematic flowchart of a new construction land detection method is provided for the embodiment of the present application. Among them, the new construction land detection method includes:

[0066] S101. Obtain a satellite high-resolution image of a target detection area.

[0067] In the embodiment of the present application, the satellite high-resolution image of the target detection area may be a three-band or four-band high-resolution remote sensing image, etc., which is not limited in the embodiment of the present application.

[0068] In the embodiment of the present application, the executing subject of the method may be a computing device such as a computer or a server, which is not limited in this embodiment.

[0069] In the embodiment of the present application, the execution subject of the method may also be a smart device such as a smart phone or a tablet computer, which is not limited in this embodiment.

[0070] S102. Per...

Embodiment 2

[0086] Please see figure 2 , figure 2 It is a schematic flowchart of a new construction land detection method provided in the embodiment of the present application. Such as figure 2 As shown, among them, the new construction land detection method includes:

[0087] S201. Obtain a satellite high-resolution image of a target detection area.

[0088] S202. Perform prediction processing on the satellite high-resolution image through the pre-built new construction land prediction model to obtain a road heat map of the target detection area and a house heat map of the target detection area.

[0089] As an optional implementation, before obtaining the satellite high resolution image of the target detection area, the following steps may also be included:

[0090] Obtain training samples, the training samples include building labeling samples in the sample area and road labeling samples in the sample area;

[0091] Build the original detection model;

[0092] The detection mod...

Embodiment 3

[0154] Please see image 3 , image 3 It is a schematic structural diagram of a newly added construction land detection device provided in the embodiment of the present application. Such as image 3 As shown, the new construction land detection device includes:

[0155] An image acquisition unit 310, configured to acquire a satellite high resolution image of the target detection area;

[0156] The model prediction unit 320 is used to predict and process the satellite high-resolution image through the pre-built new construction land prediction model to obtain the construction land heat map of the target detection area;

[0157] The detection unit 330 is used to perform new construction land detection processing on the block layer and the object layer on the satellite high-resolution image according to the preset land cover vector data, and obtain the block layer detection result and the object layer detection result;

[0158] The fusion unit 340 is configured to perform dec...

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Abstract

The invention discloses a method and device for detecting newly-added construction land, and relates to the technical field of remote sensing, and the method comprises the steps: firstly obtaining a satellite high-resolution image of a target detection region; performing prediction processing on the satellite high-resolution image through a pre-constructed newly-added construction land prediction model to obtain a construction land heat map of the target detection region; according to preset earth surface coverage vector data, carrying out newly-added construction land detection processing of a land parcel layer and an object layer on the satellite high-resolution image, and obtaining a land parcel layer detection result and an object layer detection result; further, carrying out decision-level fusion processing on the land parcel layer detection result and the object layer detection result, and obtaining a fusion detection result; and finally, determining a target newly-added construction land detection result of the target detection region according to the fusion detection result, so that the newly-added construction land can be rapidly and accurately detected, the error is small, and the applicability is good.

Description

technical field [0001] The present application relates to the field of remote sensing technology, in particular, to a method and device for detecting newly added construction land. Background technique [0002] New construction land is an important part of urban construction and development. Its rapid discovery and accurate extraction can assist urban natural resource management departments to realize dynamic monitoring and comprehensive analysis of urban development trends and development speeds. Existing new construction land detection methods usually use the images of the two phases before and after, combined with the land use / cover classification map of the previous phase, through multivariate change detection (MAD) and K-means clustering to identify the change area, and then analyze the change area. Supervised classification of post-region temporal images to extract newly added construction land. However, in practice, it has been found that the existing new constructio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06N5/04G06N3/04G06N3/08
CPCG06T7/0002G06T7/11G06N5/04G06N3/04G06N3/08G06T2207/10032G06T2207/20081G06T2207/20221
Inventor 关元秀王宇翔范磊容俊郭昊天吕伟屈洋旭田静国
Owner BEIJING AEROSPACE HONGTU INFORMATION TECH