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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">radioelectronics</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений России. Радиоэлектроника</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of the Russian Universities. Radioelectronics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1993-8985</issn><issn pub-type="epub">2658-4794</issn><publisher><publisher-name>Saint Petersburg Electrotechnical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32603/1993-8985-2020-23-4-66-76</article-id><article-id custom-type="elpub" pub-id-type="custom">radioelectronics-455</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ПРИБОРЫ МЕДИЦИНСКОГО НАЗНАЧЕНИЯ, КОНТРОЛЯ СРЕДЫ, ВЕЩЕСТВ, МАТЕРИАЛОВ И ИЗДЕЛИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICAL DEVICES, ENVIRONMENT, SUBSTANCES, MATERIAL AND PRODUCT</subject></subj-group></article-categories><title-group><article-title>Сравнение алгоритмов для шумоподавления изображений оптической когерентной томографии меланомы кожи</article-title><trans-title-group xml:lang="en"><trans-title>Comparison of Noise Reduction Algorithms for Optical Coherence Tomography Images of Skin Melanoma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0859-1282</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мякинин</surname><given-names>О. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Myakinin</surname><given-names>O. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мякинин Олег Олегович – магистр по направлению "Прикладные математика и информатика" (2011), старший преподаватель кафедры лазерных и биотехнических систем, научный сотрудник лаборатории "Фотоника" Самарского государственного аэрокосмического университета имени академика С.П. Королева, Московское шоссе, д. 34, Самара, 443086, Россия</p></bio><bio xml:lang="en"><p>Oleg O. Myakinin, Master’s degree on Applied Mathematics and Computer Science (2011), Senior Lecturer of the Department Lasers and Biotechnical Systems, Researcher of the "Photonics" Laboratory, 34 Moskovskoe Ave., Samara 443086, Russia</p></bio><email xlink:type="simple">myakole@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Самарский национальный исследовательский университет имени академика С.П. Королева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara National Research University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>07</day><month>10</month><year>2020</year></pub-date><volume>23</volume><issue>4</issue><fpage>66</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мякинин О.О., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Мякинин О.О.</copyright-holder><copyright-holder xml:lang="en">Myakinin O.O.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://re.eltech.ru/jour/article/view/455">https://re.eltech.ru/jour/article/view/455</self-uri><abstract><sec><title>Введение</title><p>Введение. Оптическая когерентная томография (ОКТ) – неинвазивный инструмент для исследования оптически неоднородных сред с микронной точностью, включая онкологию кожи. Однако ОКТ-изображения тканей сильно зашумлены, что усложняет как экспертную, так и автоматическую оценку изображений. В литературе почти отсутствуют систематические сравнения алгоритмов шумоподавления.</p></sec><sec><title>Цель работы</title><p>Цель работы. Получить результаты сравнительного тестирования на наборе ОКТ-изображений меланомы кожи с помощью различных алгоритмов шумоподавления.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Описан ряд алгоритмов шумоподавления, в которые входят как 2 относительно простых классических алгоритма – винеровский и медианный, так и более сложные: комплексный диффузионный фильтр (Complex Diffusion Filter – CDF), нечеткий анизотропный диффузионный интервальный фильтр второго типа (Interval Type Two Fuzzy Anisotropic Diffusion Filter – ITTFADF) и фильтр на основе эмпирической модовой декомпозиции (Empirical Mode Decomposition – EMD), предложенный ранее автором для визуализации сеточных имплантов. Определены количественные метрики: отношение сигнал/шум (Signal-to-Noise Ratio – SNR), эффективное число наблюдений (Effective Numberof Looks – ENL), индекс структурного сходства и коэффициент корреляции χ, отражающие 2 основных выбранных принципа улучшения качества изображения: уменьшение шума и сохранность границ слоев ткани и неоднородностей.</p></sec><sec><title>Результаты</title><p>Результаты. Получены результаты сравнительного тестирования на наборе изображений, состоявшем из 10 меланом, к которым были применены различные алгоритмы шумоподавления.</p></sec><sec><title>Заключение</title><p>Заключение. Исследование не выявило лучший алгоритм по всем четырем метрикам. По метрике SNR лучше всего работают EMD-фильтр и CDF в зависимости от типа области. EMD-фильтр при этом либо лучший по всем признакам, либо уступает на неоднородных областях по SNR и занял второе место по ENL. Приняв за верную гипотезу о большей значимости сохранности границ перед интегральной оценкой шума, можно сделать однозначный вывод о необходимости использования именно EMD-фильтра. В качестве альтернативы EMD-фильтру можно рекомендовать использовать винеровский фильтр (выигрывающий на индексах сохранности границ) или ITTFADF, который занял третье место по всем используемым метрикам.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Optical coherence tomography (ОКТ) is a non-invasive instrument for studying optically heterogeneous media with micron precision, including skin cancer. However, ОКТ tissue images are very noisy. It complicates both expert and automated image evaluations. There are almost no systematic comparisons of noise reduction algorithms in the literature.</p></sec><sec><title>Objective</title><p>Objective. To obtain comparative test results on a set of ОКТ images of skin melanoma using various noise reduction algorithms.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. A number of noise reduction algorithms were described, which include two relatively simple classical algorithms: Wiener and median, and more complex ones: a Complex Diffusion Filter (CDF), an Interval type-II Fuzzy Anisotropic Diffusion Filter (ITTFADF) and an Empirical Mode Decomposition (EMD) filter, previously proposed by the author for visualizing of mesh implants. Quantitative metrics were determined: a Signal-to-Noise Ratio (SNR) metrics, an Effective Number of Looks (ENL) metrics, Structural Similarity Index Metrics (SSIM) and a correlation coefficient χ, reflecting two main principles of improving image quality: to reduce noise and to save the borders of tissue layers and heterogeneities.</p></sec><sec><title>Results</title><p>Results. The results of a comparative testing on a set of images, consisting of 10 melanomas (to which various noise reduction algorithms were applied) were obtained.</p></sec><sec><title>Conclusion</title><p>Conclusion. The study did not reveal the best algorithm for all four metrics. According to the SNR metric, the EMD and the CDF filters perform the best depending on the type of area. At the same time, the EMD filter is either the best in all respects, or is inferior in SNR in heterogeneous areas and takes the second place in ENL. Taking as the correct hypothesis that the border preservation is more important before an integral noise estimate, it is possible to make an unambiguous conclusion about the need to use the EMD filter. As an alternative to the EMD filter, Wiener filter (which wins on the border preservation metrics) should be used or the ITTFADF, which ranked third in all used metrics.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>оптическая когерентная томография</kwd><kwd>диффузионный фильтр</kwd><kwd>медианный фильтр</kwd><kwd>винеровский фильтр</kwd><kwd>нечеткая логика</kwd><kwd>эмпирическая модовая декомпозиция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>optical coherence tomography</kwd><kwd>diffusion filter</kwd><kwd>median filter</kwd><kwd>Wiener filter</kwd><kwd>fuzzy logic</kwd><kwd>empirical mode decomposition</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Инициативная работа.</funding-statement><funding-statement xml:lang="en">Initiative work.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Drexler W., Fujimoto J.G. State-of-the-art Retinal Optical Coherence Tomography // Progress in Retinal and Eye Research. 2008. Vol. 27, № 1. P. 45–88. doi: 10.1016/j.preteyeres.2007.07.005</mixed-citation><mixed-citation xml:lang="en">Drexler W., Fujimoto J. G. State-of-the-art Retinal Optical Coherence Tomography. Progress in Retinal and Eye Research. 2008, vol. 27, no. 1, pp. 45-88. doi: 10.1016/j.preteyeres.2007.07.005</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Wang J., Xu Y., Boppart S. A. Review of Optical Coherence Tomography in Oncology // J. of biomedical optics. 2017. Vol. 22, № 12. Art. 121711. doi: 10.1117/1.JBO.22.12.121711</mixed-citation><mixed-citation xml:lang="en">Wang J., Xu Y., Boppart S. A. Review of Optical Coherence Tomography in Oncology. J. of biomedical optics. 2017, vol. 22, no. 12, pp. 121711. doi: 10.1117/1.JBO.22.12.121711</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Optical Coherence Tomography for the Diagnosis of Malignant Skin Tumors: a Meta-analysis / Y.-Q. Xiong, Y. Mo, Y.-Q. Wen, M.-J.Cheng, S.-T.Huo, X.-J. Chen, Q. Chen // J. of biomedical optics. 2018. Vol. 23, № 2. Art. 020902. doi: 10.1117/1.JBO.23.2.020902</mixed-citation><mixed-citation xml:lang="en">Xiong Y.-Q., Mo Y., Wen Y.-Q., Cheng M.-J., Huo S.-T., Chen X.-J., Chen Q. Optical coherence tomography for the diagnosis of malignant skin tumors: a meta-analysis. Journal of biomedical optics, 2018, vol. 23, no. 2, pp. 020902. doi: 10.1117/1.JBO.23.2.020902</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">A Model for Radar Images and its Application to Adaptive Digital Filtering of Multiplicative Noise / V. Frost, J. Stiles, K. Shanmugan, J. Holtzman // IEEE Trans. on Pattern Analysis and Machine Intelligence. 1982. Vol. PAMI-4, iss. 2. P. 157–166. doi: 10.1109/TPAMI.1982.4767223</mixed-citation><mixed-citation xml:lang="en">Frost V., Stiles J., Shanmugan K., Holtzman J. A model for radar images and its application to adaptive digital filtering of multiplicative noise. IEEE Transactions on pattern analysis and machine intelligence. 1982, vol. 2, pp. 157-166. doi: 10.1109/TPAMI.1982.4767223</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Verhoeven J. T. M., Thijssen J. M. Improvement of Lesion Detectability by Speckle Reduction Filtering: A Quantitative Study // Ultrasonic Imaging. 1993. Vol. 15, № 3. P. 181–204. doi: 10.1006/uimg.1993.1012</mixed-citation><mixed-citation xml:lang="en">Verhoeven J. T. M., Thijssen J. M. Improvement of lesion detectability by speckle reduction filtering: A quantitative study. Ultrasonic Imaging. 1993, vol. 15, no. 3, pp. 181-204. doi: 10.1006/uimg.1993.1012</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Rogowska J., Brezinski M. E. Evaluation of the Adaptive Speckle Suppression Filter for Coronary Optical Coherence Tomography Imaging // IEEE Trans.on Medical Imaging. 2000. Vol. MI-19, iss. 12. P. 1261–1266. doi: 10.1109/42.897820</mixed-citation><mixed-citation xml:lang="en">Rogowska J., Brezinski M. E. Evaluation of the adaptive speckle suppression filter for coronary optical coherence tomography imaging. IEEE transactions on medical imaging. 2000, vol. 19, no. 12, pp. 1261-1266. doi: 10.1109/42.897820</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Salinas H. M., Fernández D. C. Comparison of PDE-based Nonlinear Diffusion Approaches for Image Enhancement and Denoisingin optical coherence Tomography // IEEE Trans. on Medical Imaging. 2007. Vol. MI-26, № 6. P. 761–771. doi: 10.1109/TMI.2006.887375</mixed-citation><mixed-citation xml:lang="en">Salinas H. M., Fernández D. C. Comparison of PDE-based nonlinear diffusion approaches for image enhancement and denoising in optical coherence tomography. IEEE Transactions on Medical Imaging. 2007, vol. 26, no. 6, pp. 761-771. doi: 10.1109/TMI.2006.887375</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Puvanathasan P., Bizheva K. Interval Type-II Fuzzy Anisotropic Diffusion Algorithm for Speckle Noise Reduction in Optical Coherence Tomography Images // Optics express. 2009. Vol. 17, iss. 2. P. 733–746. doi: 10.1364/OE.17.000733</mixed-citation><mixed-citation xml:lang="en">Puvanathasan P., Bizheva K. Interval type-II fuzzy anisotropic diffusion algorithm for speckle noise reduction in optical coherence tomography images. Optics express. 2009, vol. 17, no. 2, pp. 733-746. doi: 10.1364/OE.17.000733</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Noise Reduction Method for ОКТ Images based on Empirical Mode Decomposition / O. O. Myakinin, D. V. Kornilin, I. A. Bratchenko, V. P. Zakharov, A. G. Khramov // J. of Innovative Optical Health Sciences. 2013. Vol. 6, № 2. Art. 1350009. doi: 10.1142/S1793545813500090</mixed-citation><mixed-citation xml:lang="en">Myakinin O. O., Kornilin D. V., Bratchenko I. A., Zakharov V. P., Khramov A. G. Noise reduction method for ОКТ images based on Empirical Mode Decomposition. Journal of Innovative Optical Health Sciences. 2013, vol. 6, no. 02, pp. 1350009. doi: 10.1142/S1793545813500090</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Мякинин О. О. Системы анализа биомедицинских данных для диагностики злокачественных новообразований кожи // Изв. вузов России. Радиоэлектроника. 2020. Vol. 23, № 3. P. 80–92. doi: 10.32603/1993-8985-2020-23-3-80-92</mixed-citation><mixed-citation xml:lang="en">Myakinin O. O. Biomedical data analysis systems for the diagnosis of skin malignancies. Izv. vuzov Rossii. Radioelektronika [Proceedings of Russian universities. Radio electronics]. 2020, vol. 23, no. 3, pp. 80–92. doi: 10.32603/1993-8985-2020-23-3-80-92 (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Baranov S. A. ОКТlab. C++ and Lab View solution for Optical Coherence Tomography. URL: https://code.google.com/archive/p/ОКТlab/ (дата обращения 18.06.2020)</mixed-citation><mixed-citation xml:lang="en">Baranov S. A. ОКТlab. C++ and LabView solution for Optical Coherence Tomography. Available at: https://code.google.com/archive/p/ОКТlab/ (accessed 18.06.2020)</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Medfilt 2. 2-D median filtering. Math Works. URL: https://www.mathworks.com/help/images/ref/med-filt2.html (дата обращения 18.06.2020)</mixed-citation><mixed-citation xml:lang="en">Medfilt 2. 2-D median filtering. Math Works. URL: https://www.mathworks.com/help/images/ref/medfilt2.html (accessed 18.06.2020)</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Wiener 2. 2-D Adaptive Noise-Removal Filtering. Math Works. URL: https://www.mathworks.com/help/im-ages/ref/wiener2.html (дата обращения 18.06.2020)</mixed-citation><mixed-citation xml:lang="en">Wiener 2. 2-D Adaptive Noise-Removal Filtering. Math Works. URL: https://www.mathworks.com/help/images/ref/wiener2.html (accessed 18.06.2020)</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Rodrigues P., Serranho P., Bernardes R. 3D Nonlinear Complex-Diffusion Filter on GPU // 2012 Annual Intern. Conf. of the IEEE Engineering in Medicine and Biology Society.28 Aug.–1 Sept. 2012, San Diego, USA. P. 110–113. doi: 10.1109/EMBC.2012.6345883</mixed-citation><mixed-citation xml:lang="en">Rodrigues P., Serranho P., Bernardes R. 3D nonlinear complex-diffusion filter on GPU. 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 2012, pp. 110-113. doi: 10.1109/EMBC.2012.6345883</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Tizhoosh H. R. Image Thresholdingusing Type II Fuzzy Sets // Pattern recognition. 2005. Vol. 38, № 12. P. 2363–2372. doi: 10.1016/j.patcog.2005.02.014</mixed-citation><mixed-citation xml:lang="en">Tizhoosh H. R. Image thresholding using type II fuzzy sets. Pattern recognition. 2005, vol. 38, no. 12. pp. 2363-2372. doi: 10.1016/j.patcog.2005.02.014</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Speckle Reduction in Optical Coherence Tomography Images using Digital Filtering / A. Ozcan, A. Bilenca, A. E. Desjardins, B. E. Bouma, G. J. Tearney // J. of the Optical Society of America A. 2007. Vol. 24, iss. 7. P. 1901–1910. doi: 10.1364/josaa.24.001901</mixed-citation><mixed-citation xml:lang="en">Ozcan A., Bilenca A., Desjardins A. E., Bouma B. E., Tearney G. J. Speckle reduction in optical coherence tomography images using digital filtering. Journal of the Optical Society of America A. 2007, vol. 24, no. 7, pp. 1901-1910. doi:10.1364/josaa.24.001901</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Image Quality Assessment: from Error Visibility to Structural Similarity / Z. Wang, A. C. Bovik, H. R. Sheikh, E. P. Simoncelli // IEEE Trans. on Image Processing. 2004. Vol. 13, iss. 4. P. 600–612. doi: 10.1109/TIP.2003.819861</mixed-citation><mixed-citation xml:lang="en">Wang Z., Bovik A. C., Sheikh H. R., Simoncelli E. P. Image quality assessment: from error visibility to structural similarity. IEEE transactions on image processing. 2004, vol. 13, no. 4, pp. 600-612. doi: 10.1109/TIP.2003.819861</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Research and Comparison of ОКТ Image Speckle Denoising Algorithm / D. Song, Y. Liu, X. Lin, J. Liu, J. Tan // 2019 IEEE 8th Joint Intern. Information Technology and Artificial Intelligence Conf. (ITAIC), Chongqing, China, 24–26 May 2019. P. 1554–1558. doi: 10.1109/ITAIC.2019.8785813</mixed-citation><mixed-citation xml:lang="en">Song D., Liu Y., Lin X., Liu J., Tan J. Research and Comparison of ОКТ Image Speckle Denoising Algorithm. 2019 IEEE 8th Joint International Information Technology and Artificial Intelligence Conference (ITAIC), 2019, pp. 1554-1558. doi: 10.1109/ITAIC.2019.8785813</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Evaluation of Choroidal Tumors with Optical Coherence Tomography: Enhanced Depth Imaging and ОКТ-angiography Features / G. Cennamo, M. Romano, M. Breve, N. Velotti, M. Reibaldi, G. de Crecchio, G. Cennamo // Eye. 2017. Vol. 31. P. 906–915. doi: 10.1038/eye.2017.14</mixed-citation><mixed-citation xml:lang="en">Cennamo G., Romano M., Breve M., Velotti N., Reibaldi M., de Crecchio G., Cennamo G. Evaluation of choroidal tumors with optical coherence tomography: enhanced depth imaging and ОКТ-angiography features. Eye. 2017, vol. 31, pp. 906–915. doi: 10.1038/eye.2017.14</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Nanoparticle-enabled Experimentally Trained Wavelet-domain Denoising Method for Optical Coherence Tomography / I. N. Dolganova, N. V. Chernomyrdin, P. V. Aleksandrova, S.-I. T. Beshplav, A. A. Potapov, I. V. Reshetov, V. N. Kurlov, V. V. Tuchin, K. I. Zaytsev // J. of biomedical optics. 2018. Vol. 23, № 9. Art. 091406. doi: 10.1117/1.JBO.23.9.091406</mixed-citation><mixed-citation xml:lang="en">Dolganova I. N., Chernomyrdin N. V., Aleksandrova P. V., Beshplav S.-I. T., Potapov A. A., Reshetov I. V., Kurlov V. N., Tuchin V. V., Zaytsev K. I. Nanoparticle-enabled experimentally trained wavelet-domain denoising method for optical coherence tomography. Journal of biomedical optics. 2018, vol. 23, no. 9, art. 091406. doi: 10.1117/1.JBO.23.9.091406</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Comparative study of deep learning models for optical coherence tomography angiography / Z. Jiang, Z. Huang, B. Qiu, X. Meng, Y. You, X. Liu, G. Liu, C. Zhou, K. Yang, A. Maier, Q. Ren, Y. Lu // Biomed Opt Express. 2020. Vol. 11, № 3. P. 1580–1597. doi: 10.1364/BOE.387807</mixed-citation><mixed-citation xml:lang="en">Z. Jiang, Z. Huang, B. Qiu, X. Meng, Y. You, X. Liu, G. Liu, C. Zhou, K. Yang, A. Maier, Q. Ren, Y. Lu Comparative study of deep learning models for optical coherence tomography angiography. Biomed Opt Express. 2020, vol. 11, no. 3, pp. 1580–1597. doi: 10.1364/BOE.387807</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Simulation of Optical Coherence Tomography Images by Monte Carlo Modeling based on Polarization Vector Approach / M. Kirillin, I. Meglinski, E. Sergeeva, V. L. Kuzmin, R. Myllyla // Optics Express. 2010. Vol. 18, iss. 21. P. 21714–21724. doi: 10.1364/OE.18.021714</mixed-citation><mixed-citation xml:lang="en">Kirillin M., Meglinski I., Sergeeva E., Kuzmin V.L., Myllyla R. Simulation of optical coherence tomography images by Monte Carlo modeling based on polarization vector approach. Optics Express. 2010, vol. 18, no. 21, pp. 21714-21724. doi: 10.1364/OE.18.021714</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Monte Carlo Simulation of Optical Coherence Tomography Signal of the Skin Nevus / I. N. Dolganova, A. S. Neganova, K. G. Kudrin, K. I. Zaytsev, I. V. Reshetov // J. of Physics: Conf. Ser. 2016. Vol. 673. Art. 012014. doi: 10.1088/1742-6596/673/1/012014</mixed-citation><mixed-citation xml:lang="en">Dolganova I. N., Neganova A. S., Kudrin K. G., Zaytsev K. I., Reshetov I. V. Monte Carlo simulation of optical coherence tomography signal of the skin nevus. Journal of Physics: Conference Series. 2016, vol. 673, pp. 012014. doi: 10.1088/1742-6596/673/1/012014</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
