Pub Date : 2022-05-02DOI: 10.31649/1681-7893-2021-41-1-69-77
V.M. Borovitsky, O.E. Hudz, S.Ye. Tuzhansky
The article presents a mathematical apparatus for precise calculation of the three-dimensional point spread function (PSF) of a high-aperture optical system. The proposed method is based on the Huygens-Fresnel principle: a spherical wave on the three-dimensional surface of the exit pupil is considered as result of the superposition of elementary secondary point radiation sources. These point sources emit coherent electromagnetic waves with a spherical wave front. They form a certain distribution of generalized complex amplitudes in three-dimensional space near the focus point. This distribution is used to calculate the intensity distribution in the focus area of the optical system, which is the PSF. The article presents the results of PSFcalculations and their comparative.
{"title":"Method for calculating the scattering function of an optical system point","authors":"V.M. Borovitsky, O.E. Hudz, S.Ye. Tuzhansky","doi":"10.31649/1681-7893-2021-41-1-69-77","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-69-77","url":null,"abstract":"The article presents a mathematical apparatus for precise calculation of the three-dimensional point spread function (PSF) of a high-aperture optical system. The proposed method is based on the Huygens-Fresnel principle: a spherical wave on the three-dimensional surface of the exit pupil is considered as result of the superposition of elementary secondary point radiation sources. These point sources emit coherent electromagnetic waves with a spherical wave front. They form a certain distribution of generalized complex amplitudes in three-dimensional space near the focus point. This distribution is used to calculate the intensity distribution in the focus area of the optical system, which is the PSF. The article presents the results of PSFcalculations and their comparative.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129049248","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}
Pub Date : 2022-05-02DOI: 10.31649/1681-7893-2021-41-1-78-88
M. Divak, A. Melnyk, Yevhen Kedrin, Frank Otoo
Mathematical models of dynamics of efficiency of information social networks are considered in the work. An approach to estimating model parameters is proposed. A number of experimental studies were conducted on the basis of data on the functioning of a special online group Facebook. The indicator of the characteristics of the information message was studied. An interval discrete model in the form of a difference equation is obtained, which describes the dynamics of users' reactions to messages in thematic groups of social networks. On the basis of the conducted experiments, the efficiency of application of the offered model is confirmed
{"title":"Interval model of the portrait of users of the thematic group on environmental issues in the social network","authors":"M. Divak, A. Melnyk, Yevhen Kedrin, Frank Otoo","doi":"10.31649/1681-7893-2021-41-1-78-88","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-78-88","url":null,"abstract":"Mathematical models of dynamics of efficiency of information social networks are considered in the work. An approach to estimating model parameters is proposed. A number of experimental studies were conducted on the basis of data on the functioning of a special online group Facebook. The indicator of the characteristics of the information message was studied. An interval discrete model in the form of a difference equation is obtained, which describes the dynamics of users' reactions to messages in thematic groups of social networks. On the basis of the conducted experiments, the efficiency of application of the offered model is confirmed","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124957499","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}
Pub Date : 2022-05-02DOI: 10.31649/1681-7893-2021-41-1-39-46
O.S. Komarova, V. Kholin, M.F. Tereshchenko, S. Pavlov, M. Bohomolov, A. Zilgaraeva, O. S. Bezkrevnyi, A. V. Reva
The technical parameters of minimally invasive diffuse diffusers are analyzed in the article on the distal part of the polymer optical fiber. Prototypes were made diffuse diffusers made of polymer optical fibers manufactured by Mitsubishi Rayon Corporation (Japan) of different lengths: SC-20 with a diameter of 500 μm and SC-10 with a diameter of 250 μm by machining their reflective shell to apply inhomogeneities and changes in the conditions of total internal reflection. The conducted research created a basis for the introduction of new methods of creation minimally invasive diffuse diffusers in the distal part of the optical polymer fiber.
{"title":"Fiber-optic minimally invasive diffuse diffuser on optical fiber for intratissue laser exposure","authors":"O.S. Komarova, V. Kholin, M.F. Tereshchenko, S. Pavlov, M. Bohomolov, A. Zilgaraeva, O. S. Bezkrevnyi, A. V. Reva","doi":"10.31649/1681-7893-2021-41-1-39-46","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-39-46","url":null,"abstract":"The technical parameters of minimally invasive diffuse diffusers are analyzed in the article \u0000on the distal part of the polymer optical fiber. Prototypes were made \u0000diffuse diffusers made of polymer optical fibers manufactured by Mitsubishi Rayon \u0000Corporation (Japan) of different lengths: SC-20 with a diameter of 500 μm and SC-10 with a diameter of 250 μm \u0000by machining their reflective shell to apply inhomogeneities and \u0000changes in the conditions of total internal reflection. \u0000The conducted research created a basis for the introduction of new methods of creation \u0000minimally invasive diffuse diffusers in the distal part of the optical polymer fiber.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"30 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134289150","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}
Pub Date : 2022-05-02DOI: 10.31649/1681-7893-2021-41-1-25-32
O. Kyrylenko
The review of OSNet neural network architecture is made for the purpose of training of own models of re-identification of the person. The structure of the neural network was also considered. Existing data sets for model training are investigated. Models were trained using PyTorch. The obtained own models were tested on the validation databases Market-1501 and DukeMTMC-reID. The results of learning neural network models are presented. The results are obtained in comparison with existing analogues.
{"title":"Development of a method of re-identification of a person","authors":"O. Kyrylenko","doi":"10.31649/1681-7893-2021-41-1-25-32","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-25-32","url":null,"abstract":"The review of OSNet neural network architecture is made for the purpose of training of own models of re-identification of the person. The structure of the neural network was also considered. Existing data sets for model training are investigated. Models were trained using PyTorch. The obtained own models were tested on the validation databases Market-1501 and DukeMTMC-reID. The results of learning neural network models are presented. The results are obtained in comparison with existing analogues.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133851436","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}
Pub Date : 2022-05-02DOI: 10.31649/1681-7893-2021-41-1-20-24
T.B. Martinyuk, O. Wojciechowska, O.S. Gorodets
In coding theory, single codes, as the implementation of non-traditional coding methods, are focused in particular on such a practical application as the transmission of symbols (bits) in communication channels. Today, the analysis and study of unit codes is a priority and actuality in terms of evaluating their corrective properties. This paper analyzes the properties of three unit codes, such as unit position (marking), unit pair and unit normal codes. The comparative characteristic of these codes taking into account their correcting properties is given. It is taken into account that the corrective properties of the code are determined by the code distance, which is the minimum distance between its code points. The formulas for determining the average probability of error non-detection for the received correction codes are given. Research and proof of corrective properties of unit codes were carried out from the point of view of their equidistance. Such codes are characterized by the fact that the code distance in the equidistant code must be an even number. The analysis of the characteristics of unit codes presented in this work showed that one of the optimal among equidistant unit codes can be considered a unit position (marking) code. The formula for calculating the lower estimate of the average probability of error non-detection for any probability of error-free transmission of the symbol, which coincides with the value of the average probability of error non-detection for the McDonald's equidistant code. This also confirmed the optimality of a considered unit position (marking) code. With this in mind, the application area of the unit position code, as noise immunity, extends due to the possibility of encoding the states of correcting machines and addressing data in computer storage devices.
{"title":"Equidistance and unit codes","authors":"T.B. Martinyuk, O. Wojciechowska, O.S. Gorodets","doi":"10.31649/1681-7893-2021-41-1-20-24","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-20-24","url":null,"abstract":"In coding theory, single codes, as the implementation of non-traditional coding methods, are focused in particular on such a practical application as the transmission of symbols (bits) in communication channels. Today, the analysis and study of unit codes is a priority and actuality in terms of evaluating their corrective properties. \u0000This paper analyzes the properties of three unit codes, such as unit position (marking), unit pair and unit normal codes. The comparative characteristic of these codes taking into account their correcting properties is given. It is taken into account that the corrective properties of the code are determined by the code distance, which is the minimum distance between its code points. The formulas for determining the average probability of error non-detection for the received correction codes are given. Research and proof of corrective properties of unit codes were carried out from the point of view of their equidistance. Such codes are characterized by the fact that the code distance in the equidistant code must be an even number. The analysis of the characteristics of unit codes presented in this work showed that one of the optimal among equidistant unit codes can be considered a unit position (marking) code. The formula for calculating the lower estimate of the average probability of error non-detection for any probability of error-free transmission of the symbol, which coincides with the value of the average probability of error non-detection for the McDonald's equidistant code. This also confirmed the optimality of a considered unit position (marking) code. \u0000With this in mind, the application area of the unit position code, as noise immunity, extends due to the possibility of encoding the states of correcting machines and addressing data in computer storage devices.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126237245","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}
Pub Date : 2021-07-28DOI: 10.31649/1681-7893-2021-41-1-59-68
Ainur Orazayeva, J. Tussupov, S. Pavlov, S. Tymchyk, N. Savina, O. S. Bezkrevnyi
The article analyzes the growing incidence of breast cancer, which has become particularly clear in the last two decades, requires special involvement of all specialists and researchers in this area. Identification of patients with hereditary forms of breast cancer allows to form strategies for early diagnosis, prevention and treatment. As a result of the analysis, the multiple regression equation was obtained.The statistical significance of the equation was verified using the coefficient of determination and Fisher's test. Prompt diagnosis should be combined with effective cancer treatment, which in many cases requires specialized cancer care at some level. Thanks to the creation of centralized services in oncology facilities or hospitals, which use as a model everything related to breast cancer, the treatment of breast cancer can be optimized while improving the treatment of other cancers.
{"title":"Mathematical model of the relationship between the genotype of patients with breast cancer on BRCA1 and TP53 and histological type of tumor based on multiple regression","authors":"Ainur Orazayeva, J. Tussupov, S. Pavlov, S. Tymchyk, N. Savina, O. S. Bezkrevnyi","doi":"10.31649/1681-7893-2021-41-1-59-68","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-59-68","url":null,"abstract":"The article analyzes the growing incidence of breast cancer, which has become particularly clear in the last two decades, requires special involvement of all specialists and researchers in this area. Identification of patients with hereditary forms of breast cancer allows to form strategies for early diagnosis, prevention and treatment. As a result of the analysis, the multiple regression equation was obtained.The statistical significance of the equation was verified using the coefficient of determination and Fisher's test. Prompt diagnosis should be combined with effective cancer treatment, which in many cases requires specialized cancer care at some level. Thanks to the creation of centralized services in oncology facilities or hospitals, which use as a model everything related to breast cancer, the treatment of breast cancer can be optimized while improving the treatment of other cancers.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122695944","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}
Pub Date : 2021-07-28DOI: 10.31649/1681-7893-2021-41-1-5-12
M. P. Proskurin
An overview of methods, architecture, block diagrams and designs of optical analog-to-digital converters (ADC) of direct conversion "radiation intensity - digital code" is given. Original design and technological solutions are proposed to improve the characteristics of optical ADCs of this type.
{"title":"Optical analog-to-digital converters of UHF range of parallel type: review of approaches and designs","authors":"M. P. Proskurin","doi":"10.31649/1681-7893-2021-41-1-5-12","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-5-12","url":null,"abstract":"An overview of methods, architecture, block diagrams and designs of optical analog-to-digital converters (ADC) of direct conversion \"radiation intensity - digital code\" is given. Original design and technological solutions are proposed to improve the characteristics of optical ADCs of this type.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126683779","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}
Pub Date : 2021-07-28DOI: 10.31649/1681-7893-2021-41-1-13-19
V. S. Kurko, I.S. Kolesnik, T.M. Borovskaya
Developed software for secure configuration of caching of dynamic content of web pages, which aims to simplify the user's process of configuring dynamic content that can be cached, reduce the risk of caching personal data, increase the percentage of cached pages containing dynamic content, reduce the load on the main server, and speed up page loading for the end user.
{"title":"A method of increasing the speed of loading web pages","authors":"V. S. Kurko, I.S. Kolesnik, T.M. Borovskaya","doi":"10.31649/1681-7893-2021-41-1-13-19","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-13-19","url":null,"abstract":"Developed software for secure configuration of caching of dynamic content of web pages, which aims to simplify the user's process of configuring dynamic content that can be cached, reduce the risk of caching personal data, increase the percentage of cached pages containing dynamic content, reduce the load on the main server, and speed up page loading for the end user.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134202106","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}
Pub Date : 2021-07-28DOI: 10.31649/1681-7893-2021-41-1-33-38
D.D. Lupyak, R. Kvyetnyy
The analytical review of modern methods of image matting is carried out in the work. The key ideas of existing methods are identified, and their accuracy is compared. Problems and tasks for further research of image matting methods are identified.
{"title":"Ways to increase the efficiency of modern methods of image matting","authors":"D.D. Lupyak, R. Kvyetnyy","doi":"10.31649/1681-7893-2021-41-1-33-38","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-33-38","url":null,"abstract":"The analytical review of modern methods of image matting is carried out in the work. The key ideas of existing methods are identified, and their accuracy is compared. Problems and tasks for further research of image matting methods are identified.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134267999","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}
Pub Date : 2021-07-28DOI: 10.31649/1681-7893-2021-41-1-47-58
Y. Nosova, Oleg Avrunin, N.O. Shushlyapyna, Ibrahim Yunuss Abdelkhamid, Alofy Bender Aly Salekh
In the diagnosis of nasal breathing disorders, the main instrumental diagnostic methods are optical endoscopy of the nose, X-ray computed spiral (or cone-beam) tomography of the nose and paranasal sinuses, as well as rhinomanometry. The statistics included 286 patients with nasal breathing disorders and a control group of 60 people. Patients were divided into two groups - with nasal breathing disorders of different nature and conditional norm (control group). The probability of error in detecting nasal breathing disorders is 0.27 (normalized Euclidean distance 1.82). Taking into account the addition of computed tomography data to the discrimination model, the diagnostic error decreases to 0.11 at a distance of 3.19. When rhinomanometry data are added to the model, the total normalized Euclidean distance increases to 3.96, and the probability of making a diagnostic decision, respectively, decreases to 0.05. Thus, rhinomanometric data make it possible to supplement the results of functional tests with information about changes in the architectonics of the nasal cavity by assessing the effect of anatomical structures on nasal aerodynamics and further reduce the likelihood of errors in diagnostic decisions when detecting disturbances in nasal breathing.
{"title":"Diagnostic significance of methods for determining nasal breathing disorders","authors":"Y. Nosova, Oleg Avrunin, N.O. Shushlyapyna, Ibrahim Yunuss Abdelkhamid, Alofy Bender Aly Salekh","doi":"10.31649/1681-7893-2021-41-1-47-58","DOIUrl":"https://doi.org/10.31649/1681-7893-2021-41-1-47-58","url":null,"abstract":"In the diagnosis of nasal breathing disorders, the main instrumental diagnostic methods are optical endoscopy of the nose, X-ray computed spiral (or cone-beam) tomography of the nose and paranasal sinuses, as well as rhinomanometry. The statistics included 286 patients with nasal breathing disorders and a control group of 60 people. Patients were divided into two groups - with nasal breathing disorders of different nature and conditional norm (control group). The probability of error in detecting nasal breathing disorders is 0.27 (normalized Euclidean distance 1.82). Taking into account the addition of computed tomography data to the discrimination model, the diagnostic error decreases to 0.11 at a distance of 3.19. When rhinomanometry data are added to the model, the total normalized Euclidean distance increases to 3.96, and the probability of making a diagnostic decision, respectively, decreases to 0.05. Thus, rhinomanometric data make it possible to supplement the results of functional tests with information about changes in the architectonics of the nasal cavity by assessing the effect of anatomical structures on nasal aerodynamics and further reduce the likelihood of errors in diagnostic decisions when detecting disturbances in nasal breathing.","PeriodicalId":142101,"journal":{"name":"Optoelectronic information-power technologies","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122213309","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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