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Multi-scale nested remote sensing image change detection method and system and computer terminal

A remote sensing image and change detection technology, applied in the field of remote sensing image processing, can solve the problems of large amount of calculation, small objects with few pixel information, easy loss of main feature information, etc., to achieve the effect of reducing the correlation and increasing the correlation.

Pending Publication Date: 2022-07-12
NORTHWEST UNIV(CN)
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Problems solved by technology

[0007] Through the above analysis, the problems and defects of the existing technology are: in the neural network, the small object itself has less pixel information, and it is very easy to lose its main feature information in the process of downsampling; the existing image pyramid is used to The method of multi-scale change enhancement will bring a huge amount of calculation

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  • Multi-scale nested remote sensing image change detection method and system and computer terminal

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[0059] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0060] 1. Explain the embodiment. In order for those skilled in the art to fully understand how the present invention is specifically implemented, this part is an explanatory embodiment to expand the description of the technical solutions of the claims.

[0061] In view of the problems existing in the prior art, the present invention provides a multi-scale nested remote sensing image change detection method, system and computer terminal. The present invention is described in detail below with reference to the accompanying drawings.

[0062] like figure 1 As shown, the multi-scale nested remote sensing image chang...

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Abstract

The invention belongs to the technical field of remote sensing image processing, and discloses a multi-scale nested remote sensing image change detection method and system and a computer terminal.The multi-scale nested remote sensing image change detection method comprises the steps that a public data set is selected, and the data set is preprocessed; constructing a network model based on an ECA attention mechanism to extract single-time-phase image features; designing and constructing a network model based on multi-scale double superposition; and selecting a training sample to train the network model and selecting a test set to test the network model. According to the method, change detection is carried out on a remote sensing image by using a feature pyramid, a twin network and an attention mechanism, the problem of class imbalance is solved by weighting two loss functions, and the influence of extraction of network fusion features and class imbalance on a detection result is enhanced by considering multi-scale superposition. The running speed is increased to a great extent; and meanwhile, the resource consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of remote sensing image processing, and in particular relates to a multi-scale nested remote sensing image change detection method, system and computer terminal. Background technique [0002] At present, the change detection of remote sensing images is the process of quantitative analysis and determining the change characteristics of ground objects from remote sensing images obtained in different time periods. This technology has extremely important computer terminals in resource and environment detection, monitoring and evaluation of natural disasters, surveying and mapping, and military. Such as the detection of dynamic changes in forests or vegetation, the real-time monitoring of the growth of crops, urban changes (streets, buildings, etc.), and the dynamic monitoring of military strategic targets. [0003] In the early stage of remote sensing image change detection research, more traditional change dete...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/13G06V10/44G06V10/80G06V10/75G06V10/764G06V10/82G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F18/241G06F18/253
Inventor 苏临之解乔云
Owner NORTHWEST UNIV(CN)
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