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A Multispectral and Panchromatic Image Fusion Method Based on Region Division and Interpolation

A multi-spectral image and panchromatic image technology, applied in the field of image processing, can solve problems such as difficult balance between spectral information and spatial resolution, spectral information distortion, insufficient spatial resolution, etc.

Active Publication Date: 2017-01-04
XIDIAN UNIV
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings in the prior art that the spectral information and spatial resolution are difficult to balance in the fusion process of low-resolution multispectral images and high-resolution panchromatic images, and propose a multispectral image based on region division and interpolation and panchromatic image fusion method to solve the shortcomings of spectral information distortion or insufficient spatial resolution in the fusion image, and improve the quality of the fusion image

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  • A Multispectral and Panchromatic Image Fusion Method Based on Region Division and Interpolation

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[0075] Such as figure 1 As shown, the steps of a multispectral and panchromatic image fusion method based on region division and interpolation provided by the present invention are as follows:

[0076] Step 1, extracting the Primal Sketch figure of the high-resolution panchromatic image, the extraction of the Primal Sketch figure mentioned therein, refer to the article "Primal Sketch" published in "ComputerVision and Image Understanding" magazine by Cheng-en Guo et al in 2007 : Integrating Texture and Structure ";.

[0077] As shown in the figure, Figure 2(a) is the original image of the high-resolution panchromatic image, and Figure 2(b) is the extracted Primal Sketch sketch, which is different from the image detected by the traditional edge detection method, in Primal Sketch In the figure, each line segment in the figure has direction information, and contains the edge and line structure in the image.

[0078] Step 2, according to the direction of the line segment in the P...

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Abstract

The invention provides a multi-spectral and full-color image fusion method on the basis of regional division and interpolation. The method comprises the realization steps: 1) a primal sketch image of a high-resolution full-color image is extracted; 2) a geometry template is constructed; 3) a region map dividing the high-resolution full-color image into a structural region and a non-structural region is obtained; 4) a region map dividing the structural region, a texture region and a smooth region is obtained; 5) an initial multi-spectral image with the size same as that of the high-resolution full-color image is obtained; 6) the initial multi-spectral image is divided into a structural region, a texture region and a smooth region; 7) a predicted multi-spectral image is obtained; 8) calculation of a grey value of each pixel point on the predicted multi-spectral image is finished, and a fusion image is obtained. The fusion method overcomes the defect that spectral information in the fusion image is distorted or the spatial resolution is insufficient, and improves the quality of the fusion image.

Description

technical field [0001] The invention belongs to the field of image processing, and in particular relates to a multispectral and panchromatic image fusion method based on region division and interpolation, which can be used in various fields such as meteorological monitoring, military target recognition, environmental monitoring, urban planning, and disaster prevention and reduction. technology. Background technique [0002] With the development of remote sensing technology, more and more multi-source remote sensing image data of the same area are obtained by various satellite sensors, which provide rich and valuable information for military target identification and environmental monitoring. The main obstacle to the application of remote sensing technology at present is the ability to extract richer, more useful and more reliable information from a wide range of data sources. This requires us to make full use of the redundancy between multi-source image data to reduce the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50
Inventor 刘芳石程李玲玲焦李成郝红侠戚玉涛武杰段一平马晶晶尚荣华于昕
Owner XIDIAN UNIV
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