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Marine complex environment dynamic high-precision optical joint imaging method and system

A technology for complex environments and imaging systems, applied in the optical field, can solve the problems of low image resolution and imaging distortion, and achieve the effect of small size, light weight, and fast capture.

Pending Publication Date: 2020-04-28
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low image resolution and imaging distortion caused by factors such as forward scattering, backscattering, turbulence, and motion smear in the existing ocean imaging technology. Dynamic and high-precision optical joint imaging method and system for photography in complex marine environment

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  • Marine complex environment dynamic high-precision optical joint imaging method and system

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The invention provides an underwater optical imaging method and system combining active polarization, stochastic resonance and high-speed photography, which can realize dynamic and high-precision optical imaging in complex marine environments. The imaging system uses the polarization and spatial coherence characteristics of the target and the noise to suppress the scattering noise, improve the imaging signal-to-noise ratio and resolution, use high-speed photography technology to eliminate image smear caused by the rapid movement of the platform, and use the receiving optical unit to correct the turbulent flow. The wavefront distortion solves the problem of low quality of dynamic imaging in complex marine environments.

[0026] Such as figure 1 As shown, the dynamic and high-precision optical joint imaging system for complex marine env...

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Abstract

The invention relates to a marine complex environment dynamic high-precision optical joint imaging method and system, and solves problems of a low image resolution and imaging distortion caused by factors such as backward scattering, forward scattering, turbulence, motion smear and the like in an existing marine imaging technology. The system comprises an LED pulse light source, a transmitting optical unit, a polarizer, a target object, a receiving optical unit, an optical stochastic resonance unit, a focal dividing plane polarization imaging unit 7, a focal dividing plane polarization imagingdetector and a synchronous control unit, wherein the transmitting optical unit and the polarizer are located on an output light path of the pulse light source, and the receiving optical unit, the optical stochastic resonance unit, the focal dividing plane polarization imaging unit and the focal dividing plane polarization imaging detector are located on a transmission light path of a return lightbeam after an ocean underwater target object is imaged by a detection light beam.

Description

technical field [0001] The invention belongs to the field of optical technology, and in particular relates to a method and system for dynamic and high-precision optical joint imaging of complex marine environments based on active polarization, stochastic resonance and high-speed photography. Background technique [0002] Underwater optical imaging technology is widely used in the fields of target search and environmental monitoring in complex ocean environments, so it can play an important role in marine scientific research. At present, although the imaging technology of underwater targets in the ocean has made great progress, there are still many technical difficulties in its application in the ocean field, including: the absorption of light waves by seawater leads to a large attenuation of the energy of the detection beam; the impact of suspended particles in the water on the detection light and There is random interference in the returned target image signal, which introd...

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Application Information

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IPC IPC(8): G01S17/89G01S7/487
CPCG01S17/89G01S7/4876
Inventor 王昭路刘红军黄楠阮驰
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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