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Through-mist imaging method based wavefront correction

An imaging method and wavefront correction technology, applied in optical components, optics, instruments, etc., can solve problems such as invisible, remote sensing image blur, original information loss information sequence, etc., and achieve a wide range of applicable environments, broad development space and application prospects Effect

Active Publication Date: 2018-09-28
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0003] When light propagates in clouds and fog, it is easy to scatter. Due to the existence of scattering, some original information is lost and the information sequence is disturbed, making remote sensing images blurred or even invisible.
The ability to image in the presence of scattering media is a long-awaited capability; however, traditional optical imaging techniques are difficult to achieve imaging through clouds and fog

Method used

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  • Through-mist imaging method based wavefront correction
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Embodiment Construction

[0013] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0014] The embodiment of the present invention provides a cloud and fog imaging method based on wavefront correction, which realizes cloud and fog imaging by adopting a scattering imaging technology based on wavefront correction and an optical memory effect.

[0015] Because the cloud contains a large number of small particles with extremely irregular sizes and distributions, the light waves collide with these particles multiple times after incide...

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Abstract

The invention discloses a through-mist imaging method based on wavefront correction, which comprises steps of: correcting a wavefront destroyed by mist through modulating a spatial light modulator, and then realizing imaging of a point source by using a lens and a detector. The wavefront emitted by the point is restored. Due to the optical memory effect, the light waves emitted by the points in acertain range near the point are also corrected to different degrees, thereby achieving through-mist imaging. Compared with the traditional method, this method can achieve through-mist clear imaging without any prior knowledge, and has a wide application environment, wide development space and application prospects.

Description

Technical field [0001] The present invention relates to the technical field of optical imaging, in particular to a through cloud and fog imaging method based on wavefront correction. Background technique [0002] Optical remote sensing has been widely used in various fields of national defense and national economic construction, but due to the influence of clouds and fog, a considerable part of optical remote sensing images are blurred and cannot meet the requirements of practical applications. Clouds, fog, and haze are all atmospheric aerosols with a diameter of 10 -3 Between μm and 30μm, which is close to the optical wavelength. [0003] When light propagates in clouds and fog, it is easy to scatter. Due to the existence of scattering, the original information is partially lost and the information sequence is disturbed, making the remote sensing image blurry or even invisible. The ability to image in the presence of a scattering medium is an ability that people have always expec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/00
CPCG02B27/0068
Inventor 杨雷周锦松景娟娟李雅灿魏立冬何晓英冯蕾付锡禄
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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