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Real-time acquisition device and method for underwater differential polarization image

A polarization image, real-time acquisition technology, applied in image communication, color TV parts, TV system parts and other directions, can solve problems such as polarization filter loss, avoid serious loss, improve flexibility, and simple structure Effect

Active Publication Date: 2021-11-02
DALIAN MARITIME UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a real-time acquisition device and method for underwater differential polarization images, which solves the problem of severe loss of polarization filters in existing underwater differential polarization imaging devices

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  • Real-time acquisition device and method for underwater differential polarization image
  • Real-time acquisition device and method for underwater differential polarization image
  • Real-time acquisition device and method for underwater differential polarization image

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Embodiment Construction

[0036] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as any limitation of the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by p...

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Abstract

The invention provides a real-time acquisition device for an underwater differential polarization image, and relates to the technical field of underwater imaging equipment. The real-time acquisition device comprises an imaging unit, wherein a light source is arranged above the imaging unit; a linear polarizer is arranged in front of the light source; an electric control polarization unit is arranged in front of the imaging unit; the imaging unit comprises an image sensor, a microcontroller, a synchronous circuit and an image preprocessing module; the microcontroller collects signals output by the image sensor; and the synchronous circuit is connected with the microcontroller and an electric control polarizer, so that the polarization state of the electric control polarization unit changes along with the imaging process; the image preprocessing module receives the shot pictures in different polarization states and processes the pictures into polarization degree images. The electronic control polarization unit is used, an all-solid-state imaging system can be achieved, the polarization state does not need to be changed in a mechanical rotation mode, and compared with the mode that the polarization state is changed through mechanical rotation, the structure is simpler, and reliability is higher.

Description

technical field [0001] The present invention relates to the technical field of underwater imaging equipment, in particular to a real-time acquisition device and method for underwater differential polarization images. Background technique [0002] At present, there are two main technical paths to alleviate the backscattering of water in the imaging process from the optical point of view, namely laser range-gated imaging and polarization imaging. Laser range-gated imaging uses a high-power narrow-pulse laser as a light source, uses an ICCD (enhanced charge-coupled device) as an image sensor, and uses a laser lighting system to illuminate the target area, and the gated camera separates the scattered light at different distances in time and the target reflected light, so that the radiation pulse reflected by the target reaches the camera and forms an image just within the camera gate time. The laser has a long distance from the gating imaging system, and the backscattering elim...

Claims

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Application Information

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IPC IPC(8): H04N5/225H04N5/232H04N5/235
CPCH04N23/56H04N23/50H04N23/54H04N23/55H04N23/80H04N23/74
Inventor 吴厚德李思蕊
Owner DALIAN MARITIME UNIVERSITY
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