Underwater detection separate aperture double CCD real-time polarization imaging device and method

Abstract

The invention discloses an underwater detection separate aperture double CCD real-time polarization imaging device and method. The device comprises a detected target, a front co-aperture imaging lens set, a non-polarization splitting prism, a polarization component set, a back separate aperture imaging lens set, a CCD detector, an LED light source and a transparent resin sealing compartment. The CCD separate-aperture design device is employed, a polarization imaging system integrated with separate apertures and separate amplitudes is realized, and circular polarization and linear polarization original images and luminous intensity images are simultaneously acquired. A multi-optical information fusion polarization imaging method based on machine learning is employed, for the underwater environments with different water depths and water qualities, modeling is carried out based on optical parameters including image colors, light intensity and a polarization degree, the waters environment and the detection distance under the artificial light source condition, the learning mechanism is established, underwater target detection images having relatively high contrast and sharpness are acquired, and underwater polarization imaging adaptability is improved.

Description

technical field [0001] The invention relates to an underwater optical imaging device and method, especially an underwater polarization imaging device and method. Background technique [0002] Polarization imaging technology is a new target detection technology developed in the past ten years. The application of polarization imaging technology can not only represent the roughness, humidity, physical and chemical properties of some natural target objects, but also can be used in underwater target detection to varying degrees. Reduce the backscattered light and target reflected light entering the detector, most of the backscattered light is filtered out and most of the target reflected light can reach the detector, that is, the incident ratio of the target reflected light is increased, and the formed on the detector The contrast of the image is improved, so the use of polarization imaging technology can greatly improve the clarity of the image, thereby increasing the detection ...

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a split-aperture dual-CCD real-time underwater polarization imaging device and method to solve the problems of blurred target detection, low contrast caused by spectrum, light intensity attenuation and light scattering, and image jitter caused by time-sharing polarization imaging.

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