Wall corner bypassing type imaging system and imaging method based on calculating correlation imaging

Abstract

The invention discloses a wall corner bypassing type imaging system based on calculating correlation imaging. The imaging system comprises a light source, a modulator, a lens, a single point light intensity detector, a data collection module and a data synchronizing and processing module, wherein a target object and the single point light intensity detector are respectively arranged at the two sides of a wall corner, the light emitted by the light source is modulated by the modulator to form a fluctuating light field with space intensity binary random distribution, the light is reflected or transmitted to the wall surface by the object, the light is reflected by the wall surface, then is collected to the single point light intensity detector, and is converted into a current signal, the total light intensity fluctuating information is measured by the data collection module, the data synchronizing and processing module is used for synchronizing the data of the modular and the data collection module, and the correlation calculation is performed so as to obtain an image of the target object. The imaging system has the advantages the wall corner bypassing imaging is realized by the correlation imaging, the anti-interference capability is high, and the imaging can be realized by penetrating through scattering objects, such as smoke. The invention also discloses a wall corner bypassing type imaging method based on the calculating correlation imaging.

Description

technical field [0001] The invention relates to the technical field of special area imaging and detection, in particular to an imaging system and imaging method that can bypass corners based on computational correlation imaging. Background technique [0002] Imaging is the most basic way for human beings to obtain external information, and it is also the basis for human beings to judge and respond to the external environment. The existing optical imaging technology is already very mature, and can get good results from microscopic imaging to astronomical imaging. [0003] However, in some scenarios, the existing traditional imaging methods are still powerless, such as how to use the diffuse reflection of ordinary walls to image another street that cannot be seen directly at the corner of the wall. [0004] In traditional correlation imaging, pseudothermal light is divided into two beams by a beam splitter, and the two beams propagate in space along different paths, one of wh...

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Problems solved by technology

[0003] However, in some scenarios, the existing traditional imaging methods are still powerless, such as how to use the diffuse reflection of ordinary walls to image another street that cannot be seen directly at the corner

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