Hyperspectral remote sensing image correction method and device
A technology for hyperspectral remote sensing and image correction, which is applied in the field of hyperspectral remote sensing image correction methods and devices, and can solve the problems of small drones and difficult hyperspectral remote sensing image correction
Active Publication Date: 2016-11-30
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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However, UAVs are generally small in size. Due to weight and cost considerations, it is difficult for UAVs to carry high-precision (the more sophisticated the device, the larger its volume and weight) attitude recording equipment. Therefore, when the aerial platform is an unmanned When man-machine, it is difficult to correct hyperspectral remote sensing images with geometric distortion by carrying attitude recording equipment
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[0089] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0090] see figure 2 , figure 2 An implementation flowchart of the hyperspectral remote sensing image correction method provided in the embodiment of the present application may include:
[0091] Step S21: Determine a reference band, which is a band that satisfies a preset condition among all bands of the hyperspectral remote sensing image to be corrected;
[0092]Hyperspectral remote sensing images usually contain data of dozens or hundreds of bands. In the em...
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The embodiment of the present invention discloses a hyperspectral remote sensing image correction method and device, which determines a band from the hyperspectral remote sensing image to be corrected as a reference band, determines the relative offset of each row by the minimum error of adjacent rows, and The relative offset of each row determines the absolute offset of each row (that is, the offset of each row relative to the pixel of the target row), so that the corresponding row in the hyperspectral remote sensing image to be corrected is moved band by band according to the absolute offset of each row, The corrected hyperspectral remote sensing image is obtained. It can be seen from this that the hyperspectral remote sensing image correction method and device provided by the embodiments of the present application start from the characteristics of the hyperspectral remote sensing image itself, and count the correlation data between rows in the hyperspectral remote sensing image. The method of line-by-line position translation is used for correction, which does not depend on external attitude data, and realizes the correction of geometric distortion of hyperspectral remote sensing images.
Description
technical field [0001] The invention relates to the technical field of image processing, and more specifically, to a hyperspectral remote sensing image correction method and device. Background technique [0002] With the rapid development of science and technology, remote sensing technology has attracted more and more attention. According to the classification of remote sensing platforms, it can be roughly divided into space remote sensing, aerial remote sensing and ground remote sensing. Human-machine), airships, balloons and other aerial platforms equipped with imaging sensors for remote sensing technology systems for earth observation. [0003] However, aerial platforms are prone to side swing, rollover or vibration due to the influence of wind, unstable air flow, and vibration of their own mechanical components. In hyperspectral remote sensing technology, imaging sensors generally use push-broom imaging to obtain multiple Spectral segment data (i.e., progressive imaging...
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IPC IPC(8): G06T5/00
Inventor 吴远峰张浩陈正超孙旭高连如张兵
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI