Single-photon imaging simulation method based on ocean turbulence

A simulation method, single photon technology, applied in design optimization/simulation, re-radiation of electromagnetic waves, instruments, etc., can solve problems such as not considering laser, low accuracy, etc., to achieve guaranteed accuracy, sufficient high-frequency components, and high accuracy sexual effect

Active Publication Date: 2022-06-03
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a single-photon imaging simulation method based on ocean turbulence to solve the problem of low accuracy caused by the existing imaging simulation method without considering the influence of turbulence on laser transmission in water

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  • Single-photon imaging simulation method based on ocean turbulence
  • Single-photon imaging simulation method based on ocean turbulence
  • Single-photon imaging simulation method based on ocean turbulence

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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present invention. Similar promotion, therefore, the present invention is not limited by the specific embodiments disclosed below.

[0019] from figure 1 It can be seen that the present invention simultaneously considers the effects of attenuation, scattering and turbulence on the transmission of lig...

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Abstract

The invention belongs to the technical field of underwater imaging, and relates to a single-photon imaging simulation method based on ocean turbulence. The problem that the accuracy is low due to the fact that an existing imaging simulation method does not consider the influence of turbulence on laser transmission in water is solved. The method comprises the following steps: firstly, determining an ocean turbulence model, then simulating the influence of ocean turbulence on the transmission of light beams in water, then determining the simulation reflectivity and simulation depth of each pixel after a target image passes through the turbulence model, and further calculating the simulation reflectivity of the target image after passing through a single-photon imaging system based on ocean turbulence; and finally, based on the simulation reflectivity and the simulation depth, describing a photon counting process by using Poisson response to complete simulation. According to the method, the influence of attenuation, scattering and turbulence on laser transmission in water is considered at the same time, and compared with an existing simulation method, the method better conforms to the actual underwater imaging process and has high accuracy.

Description

technical field [0001] The invention belongs to the technical field of underwater imaging, and relates to a single-photon imaging simulation method based on ocean turbulence. Background technique [0002] Underwater imaging is an important technology for understanding and exploring the ocean. Due to its high sensitivity, single-photon imaging technology has great advantages over active optical imaging in underwater strong attenuation environment, and is a potential new underwater optical imaging technology. [0003] Chinese patent CN113325436A discloses a single-photon imaging simulation method based on the backscattering model. The simulation process considers the interference of the backscattering of the underwater transmission environment on the laser energy, and relies on the corresponding mathematical model to obtain the simulation results. [0004] But laser transmission in water is not only affected by scattering, but also by turbulence. The above single-photon imag...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/89G01S7/48G06F30/20
CPCG01S17/89G01S7/4802G06F30/20Y02A90/10
Inventor 苏秀琴王杰郝伟陈松懋张振扬王凯迪
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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