Theoretical Methods of Images Processing in Optoelectronic Systems

Strelkova, T. I.; Карташов, В. М.; Lytyuga, A. P.; Strelkov, A. I.

doi:10.4018/978-1-5225-0632-4.ch006

Cited by 4 publications

(6 citation statements)

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“…As a consequence, such a model cannot be considered complete. Works [13,14] describe optical radiation based on the corpuscular theory. With the help of this model, phenomena of a probabilistic nature are taken into account, for example, generation of radiation, absorption in a substance of a photosensitive element.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Therefore, the intensity of the photoelectron flux is proportional to the intensity of the light flux, that is, μ(t)~I(t). Through the quantum nature of the signal and the quantum nature of the interaction of light with the photodetector, the moments of formation of photoelectrons at the output of the photodetector are determined taking into account the time dependence of the intensity of the light flux [14].…”

Section: Description Of the Process Of Forming The Output Signal Omentioning

confidence: 99%

“…The following moments of photoelectron formation are independent of the previous ones (no aftereffect). In this case, the distribution of the number of electrons n over an interval of any duration is described by Poisson's law [14,15,23 Variance and mathematical expectation are equal to the average number of photoelectrons over the observation interval. In addition to stationarity and the absence of aftereffect, the Poisson flow is characterized by ordinariness (the passage of photoelectrons alone, and not in pairs or triplets).…”

Section: Statistical Characteristics Of Signals At the Output Of The mentioning

confidence: 99%

“…That is, by comparing the magnitude of the response of photosensitive elements to the effect of an additive mixture of the signal and background components with a set limit value, the value of which is due to the selected criterion of the quality of decision making. The decision to detect a signal is made when the amplitude of the electrical signal generated by one difference element of the photodetector matrix exceeds the set value of the threshold [11,14,19]. Let's determine the efficiency of optoelectronic systems based on the signal-to-noise ratio criterion based on the corpuscular and wave description of signals.…”

Section: Determination Of the Efficiency Of Optoelectronic Systemsmentioning

confidence: 99%

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Influence of a signal description model on the calculations of the efficiency indicators of optoelectronic systems

Стрелкова

Lytuyga

Kalmykov

et al. 2020

EEJET

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The work is aimed at establishing the boundaries of the use of models for describing signals in optoelectronic systems in calculating efficiency. A description of the signal formation process is proposed, taking into account the corpuscular and wave properties when registering signals in a wide range of intensities. A description of the statistical features of the output signals depending on the energy properties of the signal and noise components is proposed. It is shown that when describing the output signals of optoelectronic systems that register signals with different properties, Poisson and Gaussian distributions are used. The invariance of Poisson flows determines the description of an additive mixture of signal and background flows using Poisson flow. The efficiency of optoelectronic systems is calculated by the signal-to-noise ratio criterion based on the corpuscular and wave description of signals. Efficiency calculations have shown the expedience of using this criterion, provided that the statistical properties of signal and background flows are stabilized. It is shown that under the condition of changes in the energy characteristics of signals, from the point of view of the wave and corpuscular models, the statistical characteristics of the signals have different descriptions. The analysis of theoretical methods of signal analysis in optoelectronic systems is carried out, which is aimed at an adequate characteristic of the system operation, depending on the conditions of its operation. Taking into account the method of describing the process of receiving and processing signals will take into account additional statistical characteristics of signals, for example, an increase of the variance of the output signal. The use of adaptive methods for describing signals will make it possible to increase the efficiency of systems when receiving strong signals in a difficult interference environment, as well as when receiving weak signals

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Description Of the Process Of Forming The Output Signal Omentioning

confidence: 99%

Section: Statistical Characteristics Of Signals At the Output Of The mentioning

confidence: 99%

Section: Determination Of the Efficiency Of Optoelectronic Systemsmentioning

confidence: 99%

See 2 more Smart Citations

Influence of a signal description model on the calculations of the efficiency indicators of optoelectronic systems

Стрелкова

Lytuyga

Kalmykov

et al. 2020

EEJET

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show abstract

“…Анализ структуры изображений в ультрафиолетовом (УФ), видимом (ВИ) и инфракрасном (ИК) диапазонах спектра показывает, что изображения УФ и ВИ областей спектра имеют идентичную структуру [4,5]. Поэтому в дальнейшем будем рассматривать особенности обработки телевизионных и тепловизионных изображений, получаемых путем регистрации лучистого (светового) потока в ВИ и ИК областях спектра с формированием сигналов разноспектральных изображений.…”

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