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An automatic registration method for panchromatic and multispectral images of Gaofen-7 satellite

A multi-spectral image, panchromatic image technology, applied in the field of aerospace remote sensing, to achieve the effect of simple implementation and rigorous theory

Active Publication Date: 2022-02-01
自然资源部国土卫星遥感应用中心
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for automatic registration of panchromatic images and multi-spectral images of Gaofen-7 satellite, thereby solving the aforementioned problems existing in the prior art

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  • An automatic registration method for panchromatic and multispectral images of Gaofen-7 satellite
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  • An automatic registration method for panchromatic and multispectral images of Gaofen-7 satellite

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[0051] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0052] Such as figure 1 As shown, this embodiment provides a method for automatic registration of panchromatic images and multi-spectral images of Gaofen-7 satellite, including the following steps,

[0053] S1. Obtain geometric imaging model parameters of panchromatic images and multispectral images of each band, and construct geometric imaging models of panchromatic images and multispectral images of each band;

[0054] S2. Using the geometric imaging model parameters of the panchromatic image and multi-spectral images in each band, construct a unified virtual CCD geometric imaging model for pan...

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Abstract

The invention discloses a method for automatic registration of panchromatic images and multispectral images of Gaofen No. 7 satellite, comprising the following steps: S1, obtaining geometric imaging model parameters of panchromatic images and images of multispectral bands, constructing panchromatic images and multispectral images Geometric imaging model of multi-spectral images in various bands; S2. Using the geometric imaging model parameters of panchromatic images and multi-spectral images in various bands to construct a unified virtual CCD geometric imaging model for panchromatic images and multi-spectral images in various bands; S3. The unified virtual CCD geometric imaging model of color images and multi-spectral images in each band can generate strictly registered panchromatic images and multi-spectral images. The advantages are: it can effectively deal with the registration problem of panchromatic image and multi-spectral image of Gaofen-7 satellite, and realize the automatic registration of the two images by constructing a virtual unified CCD in the sensor correction process.

Description

technical field [0001] The invention relates to the technical field of aerospace remote sensing, in particular to a method for automatic registration of panchromatic images and multispectral images of Gaofen-7 satellite. Background technique [0002] The registration of multispectral images and panchromatic images is the process of arranging them together according to a certain mapping relationship according to geographical distribution. The new image not only retains the high spatial resolution characteristics of panchromatic images, but also retains the multispectral image. characteristic. The accuracy of image registration has a direct impact on subsequent applications such as image fusion, image mosaic, and satellite tremor analysis. Therefore, high-precision and robust image registration is a very important research direction. [0003] There are mainly two kinds of existing multispectral and panchromatic image registration methods, which are image-space-based registra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/30G06T5/00
CPCG06T7/30G06T2207/10024G06T2207/10032G06T2207/10052G06T5/80
Inventor 刘昌儒唐新明王霞岳庆兴周平郭莉张恒
Owner 自然资源部国土卫星遥感应用中心
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