With the help of optical methods of fish functional state diagnostics the possibility of using DON-1R, a drug that contains γ–crotonolactone, in recirculating aquaculture system was proven. It was stated that adding DON-1R to granulated feed while feeding sturgeon fish stimulates the raise in mass accumulating velocity. Moreover, microscopical analysis of histological cuts and detailed analysis of their photomicrographs with the use of various approaches in contrasting images showed that feeding with feed with DON-1R is accompanied with reactive changes to the liver. In particular, fish that received the tested drug had the inequable liver cytoarchitectonics, chaotic hepatocytes placement, radial character of liver channels and undefined sinusoids. Hepatocytes of experimental fish had large hyperchromatic nuclei with 4,5 μm diameter with multiple tiny defined nucleoli. Control fish’s nuclei were 1,5 times smaller, had even coloring and 1-2 nucleoli. Moreover, fish from experimental group had signs of partial acidophilic coagulation, such as occurrence of homogenous pink lumps in cytoplasm (Mallory bodies). It is worth noting that the application of DON-1R does not lead to deep destructive changes in liver structure, such as necrosis of fibrosis. Taking all of the above into consideration, DON-1R is the most effective for growth stimulation if applied for a short period of time for commercial growing. Optimal period of use is 20 days.
{"title":"Optical methods for assessing the effect of DON-1R on the histological structure of fish liver","authors":"L. Khuda, O. Khudyi, L. Cheban","doi":"10.1117/12.2615589","DOIUrl":"https://doi.org/10.1117/12.2615589","url":null,"abstract":"With the help of optical methods of fish functional state diagnostics the possibility of using DON-1R, a drug that contains γ–crotonolactone, in recirculating aquaculture system was proven. It was stated that adding DON-1R to granulated feed while feeding sturgeon fish stimulates the raise in mass accumulating velocity. Moreover, microscopical analysis of histological cuts and detailed analysis of their photomicrographs with the use of various approaches in contrasting images showed that feeding with feed with DON-1R is accompanied with reactive changes to the liver. In particular, fish that received the tested drug had the inequable liver cytoarchitectonics, chaotic hepatocytes placement, radial character of liver channels and undefined sinusoids. Hepatocytes of experimental fish had large hyperchromatic nuclei with 4,5 μm diameter with multiple tiny defined nucleoli. Control fish’s nuclei were 1,5 times smaller, had even coloring and 1-2 nucleoli. Moreover, fish from experimental group had signs of partial acidophilic coagulation, such as occurrence of homogenous pink lumps in cytoplasm (Mallory bodies). It is worth noting that the application of DON-1R does not lead to deep destructive changes in liver structure, such as necrosis of fibrosis. Taking all of the above into consideration, DON-1R is the most effective for growth stimulation if applied for a short period of time for commercial growing. Optimal period of use is 20 days.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115815730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laser illumination scattering by blood samples during the thrombus formation and corresponding changes in scattering patterns for visible spectral range have been studied. Diode laser emission bands with central wavelengths of 0.63, 0.50 and 0.40 μm have been utilized in the single-source and combined illumination configurations. Dynamics of the scattering pattern in terms of its central spot characteristic size has been analyzed and referenced with histological examination. The obtained results demonstrate the applicability of the scattering pattern analysis for assessment of the blood clot formation stage. The prospects for practical diagnostics of the haemostasis efficiency in the emergency medicine with the help of the proposed method have been discussed.
{"title":"Diagnostics of haemostasis efficiency with laser illumination scattering pattern analysis","authors":"F. Grynchuk, I. Dutka, R. Besaha","doi":"10.1117/12.2618481","DOIUrl":"https://doi.org/10.1117/12.2618481","url":null,"abstract":"Laser illumination scattering by blood samples during the thrombus formation and corresponding changes in scattering patterns for visible spectral range have been studied. Diode laser emission bands with central wavelengths of 0.63, 0.50 and 0.40 μm have been utilized in the single-source and combined illumination configurations. Dynamics of the scattering pattern in terms of its central spot characteristic size has been analyzed and referenced with histological examination. The obtained results demonstrate the applicability of the scattering pattern analysis for assessment of the blood clot formation stage. The prospects for practical diagnostics of the haemostasis efficiency in the emergency medicine with the help of the proposed method have been discussed.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124944449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Ivanskyi, V. Tkachuk, Jun Zheng, A. I. Dobosh, I. Mikirin
This study proposes a new approach for correlation-optical diagnostics of a complex optical field created by light scattering on a rough surface. The possibility of using fluorescent nanoparticles of a size of about 30-120 nm for diagnosing the distribution of optical flows in the speckle field has been analyzed. A model experiment for investigation motion of carbon nanoparticles in a speckle field is demonstrated. Under the influence of gradient optical forces, carbon nanoparticles move in an optical field and are captured by the singularities of the field. The change of particle position in time in a three-dimensional field due to the action of longitudinal and transverse component of optical force is demonstrated.
{"title":"Dynamics of carbon nanoparticles distribution in reconstruction of optical field","authors":"D. Ivanskyi, V. Tkachuk, Jun Zheng, A. I. Dobosh, I. Mikirin","doi":"10.1117/12.2615628","DOIUrl":"https://doi.org/10.1117/12.2615628","url":null,"abstract":"This study proposes a new approach for correlation-optical diagnostics of a complex optical field created by light scattering on a rough surface. The possibility of using fluorescent nanoparticles of a size of about 30-120 nm for diagnosing the distribution of optical flows in the speckle field has been analyzed. A model experiment for investigation motion of carbon nanoparticles in a speckle field is demonstrated. Under the influence of gradient optical forces, carbon nanoparticles move in an optical field and are captured by the singularities of the field. The change of particle position in time in a three-dimensional field due to the action of longitudinal and transverse component of optical force is demonstrated.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"83 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123277320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We proposed an experimental method for determining the localization of phase field singularities. The method consists in measuring the correlation functions of the field and intensity for local fields by several pixels, calculating the ratio of their correlation radii and pixel-by-pixel binding of these parameters to the entire field. Computer simulations and experimental studies have shown that for practically all developed speckle fields, the ratio of the correlation radii saturates in the far detection zone at a value of about 0.64–0.7.
{"title":"Correlation-optical method for determining the localization of phase singularities in a scattered field","authors":"A. Maksimyak, P. Maksimyak, I. D. Nesteryuk","doi":"10.1117/12.2615563","DOIUrl":"https://doi.org/10.1117/12.2615563","url":null,"abstract":"We proposed an experimental method for determining the localization of phase field singularities. The method consists in measuring the correlation functions of the field and intensity for local fields by several pixels, calculating the ratio of their correlation radii and pixel-by-pixel binding of these parameters to the entire field. Computer simulations and experimental studies have shown that for practically all developed speckle fields, the ratio of the correlation radii saturates in the far detection zone at a value of about 0.64–0.7.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129104489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Sakhnovskyj, M. T. Strinadko, M. M. Dominikov, B. Tymochko
It is theoretically proved the possibility of spectral selection of optical signal using the Michelson interferometer, one of the mirrors of which moves, providing the time variation of the path difference of one of beams of the interferometer according to a sawtooth law. It is shown that even a small displacement of the movable mirror (on the order a wavelength), at a predetermined controlled speed, due to the selective amplification of the received total power of the signal allows to detect the spectral density of optical radiation of a specified wavelength and to expand spectral range of the measurements, consistently changing, while maintaining the linearity of the offset mirrors, the speed of its movement. The limit value of the resolving power of the spectrometer is calculated, which in the optical range is 103 - 104 Hz, and is associated with the value of the time constant of the amplifier.
{"title":"Dynamic interferometry method for measuring wavelength","authors":"M. Sakhnovskyj, M. T. Strinadko, M. M. Dominikov, B. Tymochko","doi":"10.1117/12.2616223","DOIUrl":"https://doi.org/10.1117/12.2616223","url":null,"abstract":"It is theoretically proved the possibility of spectral selection of optical signal using the Michelson interferometer, one of the mirrors of which moves, providing the time variation of the path difference of one of beams of the interferometer according to a sawtooth law. It is shown that even a small displacement of the movable mirror (on the order a wavelength), at a predetermined controlled speed, due to the selective amplification of the received total power of the signal allows to detect the spectral density of optical radiation of a specified wavelength and to expand spectral range of the measurements, consistently changing, while maintaining the linearity of the offset mirrors, the speed of its movement. The limit value of the resolving power of the spectrometer is calculated, which in the optical range is 103 - 104 Hz, and is associated with the value of the time constant of the amplifier.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Hnidko, Vasyl Gutsul, Ivan Koziarskyi, Oleksandr Makhanets
In the model of effective masses and rectangular potentials, the influence of a homogeneous electric field on the energy spectrum, electron wave functions, and oscillator strengths of intraband quantum transitions in a semiconductor (GaAs/AlxGa1-xAs) quantum dot-quantum ring nanostructure is theoretically investigated. In the presence of an electric field, the stationary Schrödinger equations for quasiparticles are not analytically solved. For their approximate solution, the unknown wave functions are sought in the form of an expansion over a complete set of cylindrically symmetric wave functions, and the electron energy is found from the solution of the corresponding secular equation. It is shown that the electric field significantly affects the localization of the electron in the multilayer nanostructure. In this case, both the electron energy and the strength of the oscillators of intraband quantum transitions depend nonmonotonically on the magnitude of the electric field strength.
{"title":"Influence of electric field on electronic optical quantum transitions in a quantum dot - quantum ring semiconductor nanostructure","authors":"I. Hnidko, Vasyl Gutsul, Ivan Koziarskyi, Oleksandr Makhanets","doi":"10.1117/12.2615553","DOIUrl":"https://doi.org/10.1117/12.2615553","url":null,"abstract":"In the model of effective masses and rectangular potentials, the influence of a homogeneous electric field on the energy spectrum, electron wave functions, and oscillator strengths of intraband quantum transitions in a semiconductor (GaAs/AlxGa1-xAs) quantum dot-quantum ring nanostructure is theoretically investigated. In the presence of an electric field, the stationary Schrödinger equations for quasiparticles are not analytically solved. For their approximate solution, the unknown wave functions are sought in the form of an expansion over a complete set of cylindrically symmetric wave functions, and the electron energy is found from the solution of the corresponding secular equation. It is shown that the electric field significantly affects the localization of the electron in the multilayer nanostructure. In this case, both the electron energy and the strength of the oscillators of intraband quantum transitions depend nonmonotonically on the magnitude of the electric field strength.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124093629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Cheban, O. Khudyi, L. Vasina, L. Khuda, M. Marchenko
Under optimal conditions, the division of unicellular cyanobacteria lasts 6-12 hours, so during the growing season there is an avalanche of reproduction. It also leads to increased exports of their metabolites to the environment. The toxins of Cyanobacterial after the destruction of these cells enter the aquatic environment and cause poisoning of aquatic organisms and animals and people who consume poisoned water. To avoid the release of toxins, it is necessary to control the rate of accumulation of cyanobacterial biomass. It is proposed to use titanium oxide (IV) as an adsorbent to regulate the number of cyanobacteria. TiO2 has a number of advantages: chemical and biological inertness, non-toxicity, high photostability. The aim of the work was to involve methods of microscopy of native and stained drugs to assess the physiological state of Microcystis pulverea (H.C. Wood) Forti under the action of TiO2. Microcystis pulverea was grown on Fitzgerald medium in the modification of Zender and Gorham №11, at a temperature of 21 ° C and a 16-hour photoperiod in a climatic room. To the cell biomass (4.5 x 106 cells / ml) was made white powder TIO2 in different concentrations: 0.5%, 1%, 2.5%, 5%. To assess the condition of M. pulverea cells after exposure to titanium (IV) oxide, microscopy of objects was performed. Native cells were analyzed for the presence of protective mu-cous formations. The localization of mucous formations on the surface of TiO2 was evaluated. Differential staining was used to determine the presence of living and dead cells and the number of metabolically active cells. These indicators make it possible to assess the condition of cyanobacterial cells under the influence of various environmental factors. To deter-mine the number of dead cells, the cells were stained with vital dyes (methylene blue and neutral red - 1: 5000). To determine the number of physiologically active cells and cytochrome oxidase test were performed according to standard methods. In both cases, cells were counted using a Fuchs-Rosenthal camera and a Micromed XS-3300 trinocular microscope. In samples with high concentrations of titanium dioxide, the cells remained unprotected. It is noted that the mucus was adsorbed around TIO2. The lowest degree of adsorption was characterized by samples containing 0.5% TiO2, and the highest degree - with 5% TiO2. When using TiO2, more than 2.5% can completely release cells of cyanobacteria in the aqueous medium from the mucous that protects their cells, and then use other drugs for lysis. An increase in the number of dead cells was observed in cyanobacterial culture. In M. pulverea culture, the number of metabolically active cells decreases sharply with increasing concentration of TiO2. Incubation with TiO2 led to a gradual decrease in the number of metabolically active cells: from 96% (in the control sample) to about 9% in the presence of 5% TiO2. Although this culture remains relatively alive, but loses the ability to active
{"title":"Involvement of optical methods for condition assessment of cyanobacteria cells under the action of TiO2","authors":"L. Cheban, O. Khudyi, L. Vasina, L. Khuda, M. Marchenko","doi":"10.1117/12.2615530","DOIUrl":"https://doi.org/10.1117/12.2615530","url":null,"abstract":"Under optimal conditions, the division of unicellular cyanobacteria lasts 6-12 hours, so during the growing season there is an avalanche of reproduction. It also leads to increased exports of their metabolites to the environment. The toxins of Cyanobacterial after the destruction of these cells enter the aquatic environment and cause poisoning of aquatic organisms and animals and people who consume poisoned water. To avoid the release of toxins, it is necessary to control the rate of accumulation of cyanobacterial biomass. It is proposed to use titanium oxide (IV) as an adsorbent to regulate the number of cyanobacteria. TiO2 has a number of advantages: chemical and biological inertness, non-toxicity, high photostability. The aim of the work was to involve methods of microscopy of native and stained drugs to assess the physiological state of Microcystis pulverea (H.C. Wood) Forti under the action of TiO2. Microcystis pulverea was grown on Fitzgerald medium in the modification of Zender and Gorham №11, at a temperature of 21 ° C and a 16-hour photoperiod in a climatic room. To the cell biomass (4.5 x 106 cells / ml) was made white powder TIO2 in different concentrations: 0.5%, 1%, 2.5%, 5%. To assess the condition of M. pulverea cells after exposure to titanium (IV) oxide, microscopy of objects was performed. Native cells were analyzed for the presence of protective mu-cous formations. The localization of mucous formations on the surface of TiO2 was evaluated. Differential staining was used to determine the presence of living and dead cells and the number of metabolically active cells. These indicators make it possible to assess the condition of cyanobacterial cells under the influence of various environmental factors. To deter-mine the number of dead cells, the cells were stained with vital dyes (methylene blue and neutral red - 1: 5000). To determine the number of physiologically active cells and cytochrome oxidase test were performed according to standard methods. In both cases, cells were counted using a Fuchs-Rosenthal camera and a Micromed XS-3300 trinocular microscope. In samples with high concentrations of titanium dioxide, the cells remained unprotected. It is noted that the mucus was adsorbed around TIO2. The lowest degree of adsorption was characterized by samples containing 0.5% TiO2, and the highest degree - with 5% TiO2. When using TiO2, more than 2.5% can completely release cells of cyanobacteria in the aqueous medium from the mucous that protects their cells, and then use other drugs for lysis. An increase in the number of dead cells was observed in cyanobacterial culture. In M. pulverea culture, the number of metabolically active cells decreases sharply with increasing concentration of TiO2. Incubation with TiO2 led to a gradual decrease in the number of metabolically active cells: from 96% (in the control sample) to about 9% in the presence of 5% TiO2. Although this culture remains relatively alive, but loses the ability to active","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125983213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tetiana Venkel, J. Son, Jung Kim, Hyoung Lee, Gwanghee Heo
Thermal image is used to visualize the crack forming and progressing process in mortar prisms added with carbon fibers of five different percentages of 0.0 %, 0.5 %, 1.0 %, 1.5 % and 2.0% in volume, with the time variations of the surface temperature of the prisms while applying forces through a universal testing machine. The surface temperatures are smoothly increasing as the force increases but they reveal sudden temperature increases at the time of crack forming in the prisms. It turns that the sudden temperature increase in the prisms is appeared at the aggregated carbon fibers along the crack paths. The time of increasing matches closely to the crack on-set time determined by a panchromatic camera. Since the fibers along the crack path are more stressed for the given force because they resist more to the force than the mortar itself, their temperatures increase much more than the neighboring mortar. Hence the temperature variation in the aggregated fibers along the crack path informs before the actual crack appearance.
{"title":"Thermal image for monitoring crack forming process","authors":"Tetiana Venkel, J. Son, Jung Kim, Hyoung Lee, Gwanghee Heo","doi":"10.1117/12.2615339","DOIUrl":"https://doi.org/10.1117/12.2615339","url":null,"abstract":"Thermal image is used to visualize the crack forming and progressing process in mortar prisms added with carbon fibers of five different percentages of 0.0 %, 0.5 %, 1.0 %, 1.5 % and 2.0% in volume, with the time variations of the surface temperature of the prisms while applying forces through a universal testing machine. The surface temperatures are smoothly increasing as the force increases but they reveal sudden temperature increases at the time of crack forming in the prisms. It turns that the sudden temperature increase in the prisms is appeared at the aggregated carbon fibers along the crack paths. The time of increasing matches closely to the crack on-set time determined by a panchromatic camera. Since the fibers along the crack path are more stressed for the given force because they resist more to the force than the mortar itself, their temperatures increase much more than the neighboring mortar. Hence the temperature variation in the aggregated fibers along the crack path informs before the actual crack appearance.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"19 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113961910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Kyrychok, N. Talimonova, O. P. Sokol, Ya. Yu. Talimonov
As the inhomogeneity of the paper structure in the areas of watermarks increases, the accuracy of the colour characteristics on the original print changes, as well as the uneven ink showing through on the back of the print, what causes unjustified withdrawal of suitable banknotes due to misjudgement of their condition as worn out. Therefore, to ensure the proper quality of automated sorting of banknotes, a methodology for predicting changes in the colour of the print return on special purpose paper should be developed taking into account its structural characteristics and a methodology for determining quantitative values of paper clearance characteristics with halftone watermarks.
{"title":"Optical control of colour deviation due to ink showing through on the banknote reverse on multitoned watermarks","authors":"T. Kyrychok, N. Talimonova, O. P. Sokol, Ya. Yu. Talimonov","doi":"10.1117/12.2615968","DOIUrl":"https://doi.org/10.1117/12.2615968","url":null,"abstract":"As the inhomogeneity of the paper structure in the areas of watermarks increases, the accuracy of the colour characteristics on the original print changes, as well as the uneven ink showing through on the back of the print, what causes unjustified withdrawal of suitable banknotes due to misjudgement of their condition as worn out. Therefore, to ensure the proper quality of automated sorting of banknotes, a methodology for predicting changes in the colour of the print return on special purpose paper should be developed taking into account its structural characteristics and a methodology for determining quantitative values of paper clearance characteristics with halftone watermarks.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130233256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In statistical problems of optics to assess the nature of the distribution of random variables and in modern research in the field of signal processing, there is an interest in using Chebyshev-Hermit functions for coding and decoding of signals, since signal components can be described by Gram-Charlier distribution, which has universal properties, can substitute of all known distributions of random variables, and in the case of symmetry takes the form of a Gaussian distribution. A striking feature of skewness and kurtosis is their property of geometric interpretation. It is shown that the application of these parameters in decoding makes it possible to identify the overlapping signals. In statistic problems of rough surface optics, the use of distribution allows to explain some effects, in particular the spectral decomposition of white light observed at grazing angles, and the shift of the maximum specular reflection from the direction of specular luster to the right or left depending on the asymmetry sign.
{"title":"Gram-Charlier distribution in statistical problems of optics","authors":"V. Zhytaryuk, E. Kurek","doi":"10.1117/12.2615631","DOIUrl":"https://doi.org/10.1117/12.2615631","url":null,"abstract":"In statistical problems of optics to assess the nature of the distribution of random variables and in modern research in the field of signal processing, there is an interest in using Chebyshev-Hermit functions for coding and decoding of signals, since signal components can be described by Gram-Charlier distribution, which has universal properties, can substitute of all known distributions of random variables, and in the case of symmetry takes the form of a Gaussian distribution. A striking feature of skewness and kurtosis is their property of geometric interpretation. It is shown that the application of these parameters in decoding makes it possible to identify the overlapping signals. In statistic problems of rough surface optics, the use of distribution allows to explain some effects, in particular the spectral decomposition of white light observed at grazing angles, and the shift of the maximum specular reflection from the direction of specular luster to the right or left depending on the asymmetry sign.","PeriodicalId":250235,"journal":{"name":"International Conference on Correlation Optics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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