SAR-visible light remote sensing image matching method

A remote sensing image and matching method technology, which is applied in the field of remote sensing image processing, can solve problems such as image noise, nonlinear grayscale distortion, etc., and achieve the effect of improving matching performance and generalization ability

Pending Publication Date: 2022-04-15
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0004] In view of this, the present invention provides a SAR-visible light remote sensing image matching method, which is based on the attention mechanism and image structure direction, and can solve the problems of nonlinear grayscale distortion and image noise in SAR-visible light remote sensing images in the prior art. It can reduce the impact of useless features on training while enhancing useful features

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  • SAR-visible light remote sensing image matching method

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[0035] The following will clearly and completely describe the conception, technical solution advantages and technical effects of the present invention in conjunction with the embodiments, so as to fully understand the purpose, features and effects of the present invention. It should be noted that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] A SAR-visible light remote sensing image matching method, see figure 2, this method first uses prior information (geocoding) to SAR and visible light images (see figure 1 ) for rough registration; then, extract the multi-scale fusion image structural direction diagrams of SAR remote sensing images and visible light remote sensing images respectively, and fuse different scales according to the consistency; secondly, input the extracted multi-scale fusion structural direction diagrams into pseudo The twin neural network, the SAR image structure direction...

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Abstract

The invention provides an SAR-visible light remote sensing image matching method, and belongs to the field of remote sensing image processing. The method comprises the following steps: performing coarse registration on SAR and visible light images by using geocoding; extracting multi-scale fusion structure directional diagrams of the SAR and the visible light remote sensing image respectively; inputting the SAR and visible light structure directional diagrams into a pseudo twin network, and optimizing the image structure directional diagram by using an attention mechanism; and obtaining the correlation of the two structural directional diagrams and determining an optimal matching position. The SAR-visible light remote sensing image matching method can be used for matching the visible light remote sensing image and the SAR image, and high-precision and efficient SAR-visible light remote sensing image matching is achieved.

Description

technical field [0001] This field relates to the field of remote sensing image processing, in particular to a SAR-visible light remote sensing image matching method, which can be used for matching between visible light remote sensing images and synthetic aperture radar (Synthetic Aperture Radar, SAR) images. Background technique [0002] Multi-modal image data can reflect different attributes and characteristics of ground objects, can make up for the deficiency of single-modal images, and increase the amount of image information. SAR-visible light remote sensing images are typical multi-modal images, and SAR-visible light image matching refers to the process of detecting control points between images, which is a key preprocessing step for comprehensive use of SAR and optical images for remote sensing applications and analysis, such as Heterogeneous image registration, image fusion, and change detection. Due to the different imaging mechanisms of SAR images and visible light...

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Application Information

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IPC IPC(8): G06K9/62G06N3/04G06N3/08G06V10/75G06V10/44G06V10/74G06V10/80G06V10/82
Inventor 孙方德耿虎军王弢王敏张晓男常晓宇王港高峰陈金勇王士成
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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