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High-resolution remote sensing image geometric registration method and device

A high-resolution, remote-sensing image technology, applied in the field of remote-sensing surveying and mapping, can solve the problems of low geometric registration efficiency of high-resolution remote-sensing images, and achieve the effects of reducing labor costs, improving efficiency, and reducing time

Active Publication Date: 2019-04-19
武汉珈和科技有限公司
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Problems solved by technology

[0004] The invention proposes a method and device for geometric registration of high-resolution remote sensing images to solve the problem of low geometric registration efficiency of high-resolution remote sensing images

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  • High-resolution remote sensing image geometric registration method and device

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Embodiment Construction

[0027] The invention provides a method and device for geometric registration of high-resolution remote sensing images, which are used for rapid geometric registration of high-resolution remote sensing images.

[0028] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Apparently, the embodiments described below are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see figure 1 , a schematic flow chart of a high-resolution remote sensing image geometric registration method provided by the present invention, the method comprising:

[0030] S1. Obtain high-resolution image data containing projection information, where the high-resolution image data includes a reference imag...

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Abstract

The invention provides a high-resolution remote sensing image geometric registration method and a high-resolution remote sensing image geometric registration device, and the method comprises the following steps: obtaining high-resolution image data containing projection information, including a reference image and an image to be registered; Performing geographic information coarse matching to obtain a preliminary correction result A1; Cutting out an area A2 having the same geographic coordinate as A1 from the reference image; Uniformly partitioning the A1 and the A2 according to the same size,calculating a standard deviation mean value of each pair of partitioned images with the same geographic coordinate area, and selecting the pair of partitioned images with the standard deviation meanvalue in the middle position; Fourier transform is carried out, and affine parameters between the block image pairs are calculated in a frequency domain according to phase information; And performingaffine correction on the A1 according to the affine parameters to obtain a registration result. According to the method and the device provided by the invention, the service required time can be reduced, the efficiency is improved, the registration precision is ensured, and the cost is reduced. The invention belongs to the field of surveying and mapping remote sensing.

Description

technical field [0001] The invention provides a high-resolution remote sensing image geometric registration method and device, belonging to the technical field of remote sensing surveying and mapping. Background technique [0002] With the development of remote sensing technology, high spatial resolution remote sensing images have become the main data source for applications such as precision agriculture, target recognition, disaster assessment, and change monitoring. Since satellite data is affected by weather, satellite revisit cycle, etc., when the same source image cannot completely cover the study area, we need to use multi-source remote sensing images. Due to differences in acquisition time, platforms, and system factors, geometric position errors occur between multi-source images, and geometric registration is required before use. In the face of massive multi-source remote sensing image data, traditional manual registration can no longer meet the operational needs of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/37G06T7/33G06T5/00G06T3/00
CPCG06T7/33G06T7/37G06T2207/20021G06T2207/20056G06T2207/10032G06T3/02G06T5/80
Inventor 杨泽宇郑高强
Owner 武汉珈和科技有限公司
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