Rotary optical satellite image degradation information sensing and restoring method and system

A technology of degraded information and optical satellites, applied in the field of optical satellites, can solve problems such as complex mechanism, image quality degradation and blur

Active Publication Date: 2020-08-28
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a rotating optical satellite image degradation information perception and restoration method and system to solve the problem that the existing rotating large-width optical satellite imaging mechanism is complicated and the image quality is degraded and blurred

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  • Rotary optical satellite image degradation information sensing and restoring method and system
  • Rotary optical satellite image degradation information sensing and restoring method and system
  • Rotary optical satellite image degradation information sensing and restoring method and system

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Embodiment 1

[0053] This embodiment provides a method for sensing and restoring information on the degradation of rotating optical satellite images, such as figure 1 As shown, the method for sensing and restoring the degradation information of the rotating optical satellite image includes: rotating the optical satellite to perform rotating imaging, forming a rotating optical satellite image, and calculating the degradation information of the rotating optical satellite image; detecting the rotating optical satellite based on the Fourier model High-frequency degradation information and low-frequency degradation information in the degradation information of the image, separating the high-frequency degradation information and the low-frequency degradation information in the degradation information of the rotating optical satellite image to form high-frequency degradation information and low-frequency degradation information; performing spatio-temporal modeling on the high-frequency degradation...

Embodiment 2

[0076] This embodiment provides a rotating optical satellite image degradation information perception and restoration system. The rotational optical satellite image degradation information perception and restoration system includes a degradation information calculation module, a degradation information separation module, a spatio-temporal modeling module and a single array image compensation module, wherein: the rotating optical satellite performs rotating imaging to form a rotating optical satellite image, the degradation information calculation module calculates the degradation information of the rotating optical satellite image; the degradation information separation module detects the rotating optical satellite image based on a Fourier model high-frequency degradation information and low-frequency degradation information in the degradation information of the rotating optical satellite image, and separate the high-frequency degradation information and low-frequency degradatio...

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Abstract

The invention provides a rotary optical satellite image degradation information sensing and restoring method and system, and the rotary optical satellite image degradation information sensing and restoring method comprises the steps: enabling a rotary optical satellite to carry out rotary imaging, forming a rotary optical satellite image, and calculating the degradation information of the rotary optical satellite image; detecting high-frequency degradation information and low-frequency degradation information in the degradation information of the rotating optical satellite image based on a Fourier model, and separating the high-frequency degradation information and the low-frequency degradation information in the degradation information of the rotating optical satellite image to form the high-frequency degradation information and the low-frequency degradation information; performing space-time modeling on the high-frequency degradation information to form a high-frequency degradation information space-time model; performing space-time modeling on the low-frequency degradation information to form a low-frequency degradation information space-time model; and based on the high-frequency degradation information space-time model and the low-frequency degradation information space-time model, compensating the single-sided array image of the rotating optical satellite, and restoring the image of the rotating optical satellite.

Description

technical field [0001] The invention relates to the technical field of optical satellites, in particular to a method and system for sensing and restoring image degradation information of rotating optical satellites. Background technique [0002] Ultra-high, ultra-sensitive, ultra-stable, and ultra-wide optical satellites are currently the key development targets of my country's high-resolution earth observation system, and imaging in motion is an important imaging mode. Faced with the growing demand for large-scale and high-time-effective earth observation in the region, rotational earth imaging has gradually become a new model and has been gradually researched and developed. The rotating ultra-large and wide-format optical satellite adopts the conical scanning earth observation technology system of the area array camera, realizes super large area observation through the conical scanning method, designs wide-area search imaging and key area encryption imaging mode, and has w...

Claims

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Application Information

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IPC IPC(8): G06T5/00G01C11/00
CPCG01C11/00G06T2207/10032G06T2207/20024G06T2207/20056G06T2207/30181G06T5/00
Inventor 范城城尹增山胡海鹰刘国华刘洋李华王旭辉田龙飞
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS
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