Image compensation method, device and computer storage medium

Abstract

The embodiment of the present invention discloses an image compensation method, device, and computer storage medium; the method may include: dividing a linear charge-coupled device CCD array into a plurality of CCD line segments; The current relative angle between the target area and each of the CCD line segments determines the current to-be-rotated angle of each of the CCD line segments; for each of the CCD line segments, the rotation is performed according to the current to-be-rotated angle of each of the CCD line segments ; The region to be imaged is photographed through the rotated CCD line segment.

Description

technical field [0001] The present invention relates to the technical field of aerospace observation, in particular to an image compensation method, device and computer storage medium. Background technique [0002] Swing-sweep imaging refers to a dynamic imaging method that performs imaging simultaneously during satellite attitude maneuvering. The satellite camera quickly reaches a certain angular velocity in the rolling direction, and then moves at a certain angular velocity to image the ground. A linear charge-coupled device (CCD, Charge-Coupled Device) array is often used in sweep imaging, specifically, as figure 1 As shown, a certain number of CCD photosensitive elements are arranged in a straight line, and the CCD array in this layout form is called a linear CCD array, also known as a scanning CCD. By scanning with a linear CCD array and splicing the remote sensing images acquired at each moment, a large-format high-resolution visible light image can be obtained. [0...

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Problems solved by technology

[0004] And for the above geometric distortion, such as image 3 As shown in , from the center O of the area to be imaged to both ends, due to the existence of the curvature of the earth, the resulting image displacement error gradually increases

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