A Mathematical Model of Laser Radiation Propagation in Seawater

Kostylev, Nikita; Kolyuchkin, V. Ya.; Stepanov, R. O.

doi:10.1134/s0030400x1910014x

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…3 A mathematical model for laser radiation propagation [57] Addressing the radiative transfer equation for a narrow beam through a simplified approximation of the seawater layer scattering indicatrix, assuming predominant forward scattering in seawater.…”

Section: No Deterministic Laws For Transmission Processes Achievementsmentioning

confidence: 99%

“…The authors of [56] introduced a numerical model employing the Stokes vector and Mueller matrix, incorporating atmospheric polarization distribution, refraction at the air-water interface, and single Rayleigh scattering by water molecules. The authors of [57] detailed a mathematical model for laser radiation propagation, addressing the radiative transfer equation for a narrow beam through a simplified approximation of the seawater layer scattering indicatrix, assuming predominant forward scattering in seawater. Under the premise of pronounced forward scattering, the authors of [58] extracted three independent equations for basic modes from the exact vector radiative transfer equation, calculating the temporal profile of the polarization degree for linearly and circularly polarized pulses using actual scattering matrix data.…”

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confidence: 99%

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Breakthrough Underwater Physical Environment Limitations on Optical Information Representations: An Overview and Suggestions

Li,

Zhang,

Zhang

et al. 2024

JMSE

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Underwater optics have seen a notable surge of interest in recent years, emerging as a critical medium for conveying information crucial to underwater resource exploration, autonomous underwater vehicle navigation, etc. The intricate dynamics of underwater optical transmission, influenced by factors such as the absorption by the water and scattering by multiple particles, present considerable challenges. One of the most critical issues is that the optical information representation methods fail to take into account the impact of the underwater physical environment. We conducted a comprehensive review and analysis of recent advancements in underwater optical transmission laws and models. We summarized and analyzed relevant research on the effects of underwater particles and turbulence on light and analyzed the polarization effects in various environments. Then, the roles of various types of underwater optical propagation models were analyzed. Although optical models in complex environments are still mostly based on Monte Carlo methods, many underwater optical propagation mechanisms have been revealed and can promote the impacts of optical information expression. We delved into the cutting-edge research findings across three key domains: the enhancement of underwater optical image quality, the 3D reconstruction from monocular images, and the underwater wireless optical communication, examining the pivotal role played by light transmission laws and models in these areas. Drawing upon our extensive experience in underwater optics, including underwater optical sensor development and experiments, we identified and underscored future directions in this field. We advocate for the necessity of further advancements in the comprehension of underwater optical laws and physical models, emphasizing the importance of their expanded application in underwater optical information representations. Deeper exploration into these areas is not only warranted but essential for pushing the boundaries of current underwater optical technologies and unlocking new potential for their application in underwater optical sensor developments, underwater exploration, environmental monitoring, and beyond.

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Section: No Deterministic Laws For Transmission Processes Achievementsmentioning

confidence: 99%

mentioning

confidence: 99%

Breakthrough Underwater Physical Environment Limitations on Optical Information Representations: An Overview and Suggestions

Li,

Zhang,

Zhang

et al. 2024

JMSE

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“…Однако имеется достаточное количество данных о прозрачности воды, измеряемой по диску Секки для акваторий по всему миру. В связи с этим целесообразно использовать методику расчета гидрооптических характеристик, предложенную в [15]. Например, для акваторий типа Case 2 по классификации Мореля можно определить перечисленные гидрооптические характеристики, зная только глубину Z D видимости диска Секки, по следующим формулам:…”

Section: рис 1 прохождение излучения через элементарный объем рассеив...unclassified

Performance evaluation of underwater vision systems

Kolyuchkin,

Kostylev,

Gulina

2023

Computer Optics

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The article describes a methodology for performance evaluation of vision systems for remotely operated underwater vehicles. The methodology is based on a system approach and uses mathematical models of the aqueous medium where an optical signal propagates, the underwater object image registration system, and the mathematical model of the human visual system. The detection and recognition probabilities of underwater object image at a given registration range are used as performance evaluation indicators of underwater vision systems. The mathematical model of the aqueous medium developed by the authors allows quantitative evaluation of the influence of backscattering interference arising during objects illumination on the underwater vision system performance. The results of numerical experiments presented in the paper illustrate the possibility of using the proposed technique to optimize the underwater object image registration system parameters in order to achieve the required values of detection or recognition probabilities at the given ranges.

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Study of Marine Particles Using Submersible Digital Holographic Camera during the Arctic Expedition

et al. 2022

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The paper presents the results of in situ studies of marine particles of different nature using a submersible digital holographic camera (DHC) during the Arctic expedition. It also describes the features, performance specifications, and possibilities of the DHC and the DHC technology. The DHC technology can be used for noninvasive automatic evaluation of spatial and temporal characteristics of plankton, including the distribution of plankton concentrations. The comparison of quantitative analysis of zooplankton net samples and classification results using the DHC revealed that the error of the DHC classification of mesoplankton at the level of the main systematic orders was about 30%. The results of determining the data on the medium, such as water turbidity, according to the radiation shielding factor (degree) by the particles of the Suspension taxon using the DHC technology are presented; the prospects for studying the size of gas bubbles and their volume content according to the Bubble taxon data are shown. The use of holographic data for in situ point estimates is considered.

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A Mathematical Model of Laser Radiation Propagation in Seawater

Cited by 3 publications

References 4 publications

Breakthrough Underwater Physical Environment Limitations on Optical Information Representations: An Overview and Suggestions

Breakthrough Underwater Physical Environment Limitations on Optical Information Representations: An Overview and Suggestions

Performance evaluation of underwater vision systems

Study of Marine Particles Using Submersible Digital Holographic Camera during the Arctic Expedition

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