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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">inform</journal-id><journal-title-group><journal-title xml:lang="ru">Информатика</journal-title><trans-title-group xml:lang="en"><trans-title>Informatics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0301</issn><issn pub-type="epub">2617-6963</issn><publisher><publisher-name>UIIP NASB</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37661/1816-0301-2020-17-1-18-28</article-id><article-id custom-type="elpub" pub-id-type="custom">inform-1061</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>МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL MODELING</subject></subj-group></article-categories><title-group><article-title>Моделирующая среда для анализа алгоритмов  трехмерной реконструкции объектов  видеоэндоскопических исследований</article-title><trans-title-group xml:lang="en"><trans-title>Modelling environment for analyzing the algorithms  for 3D  reconstruction of videoendoscopic research objects</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернявский</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyavsky</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернявский Александр Федорович, академик Национальной академии наук Беларуси, доктор технических наук, профессор, заведующий научно-исследовательской лабораторией специализированных      вычислительных систем, Научно-исследовательское учреждение «Институт прикладных физических проблем им. А. Н. Севченко»</p></bio><bio xml:lang="en"><p>Aleksandr F. Chernyavsky, Academician of the National Academy of Sciences of Belarus, Dr. Sci. (Eng.),                Professor, Head of the Research Laboratory of Specialized Computing Systems, A. N. Sevchenko Institute of Applied Physical Problems</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Головатая</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Halavataya</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Головатая Екатерина Александровна, аспирант, старший преподаватель кафедры интеллектуальных систем, факультет радиофизики и компьютерных технологий</p></bio><bio xml:lang="en"><p>Katsiaryna A. Halavataya, Postgraduate Student, Senior Lecturer, Department of Intelligent Systems, Faculty of Radiophysics and Computer Technologies</p></bio><email xlink:type="simple">katerina-golovataya@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Садов</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadau</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Садов Василий Сергеевич, кандидат технических наук, доцент, профессор кафедры интеллектуальных систем, факультет радиофизики и компьютерных технологий</p></bio><bio xml:lang="en"><p>Vasili S. Sadau, Cand. Sci. (Eng.), Associate Professor, Professor of the Department of Intelligent Systems, Faculty of Radiophysics and Computer Technologies</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belarusian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>28</day><month>03</month><year>2020</year></pub-date><volume>17</volume><issue>1</issue><fpage>18</fpage><lpage>28</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чернявский А.Ф., Головатая Е.А., Садов В.С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Чернявский А.Ф., Головатая Е.А., Садов В.С.</copyright-holder><copyright-holder xml:lang="en">Chernyavsky A.F., Halavataya K.A., Sadau V.S.</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://inf.grid.by/jour/article/view/1061">https://inf.grid.by/jour/article/view/1061</self-uri><abstract><p>Трехмерная реконструкция по результатам видеоэндоскопических обследований является перспективным направлением для поддержки медицинской диагностики и планирования терапии широкого спектра патологий. Тем не менее значительную сложность представляет оценка результатов такой реконструкции и проверка соответствия полученной трехмерной модели исходной сцене. В качестве решения этой проблемы предлагается использовать моделирующую среду для эмуляции процесса получения исходных видеоэндоскопических данных по сгенерированной сцене. Рассматривается задача трехмерного моделирования пищевода с использованием среды Autodesk 3ds Max и движка визуализации Arnold, а также задача процедурной генерации текстур для модели. Описывается генерация по подобию с использованием пространственно-периодических генеративно-состязательных моделей на основе сверточных нейронных сетей. Для сравнения результата реконструкции со сценой, сгенерированной при помощи предложенной моделирующей среды, вводится критерий оптимальности, с помощью которого сравниваются отдельные этапы алгоритма трехмерной реконструкции при оптимизации по методу связок.</p></abstract><trans-abstract xml:lang="en"><p>Three-dimensional reconstruction based on the results of video endoscopic examination is a promising area for supporting medical diagnostics and treatment planning for a wide range of pathologies. Nevertheless, the assessment of the results of such reconstruction and verification of the correspondence of the obtained three-dimensional model to the original scene is significantly challenging. As a solution to this problem, the possibility of using a modelling environment to emulate the process of obtaining source video endoscopic data from the generated scene is suggested. The problem of three-dimensional modelling of the esophagus using the Autodesk 3ds Max environment and the Arnold visualization engine is considered. The paper describes the procedural generation of textures for the model and proposes the using Periodic Spatial Generative Adversarial Network models based on convolutional neural networks. To compare the result of  reconstruction with a scene, generated using the proposed modelling environment, an optimality criterion is introduced, by which the individual stages of the three-dimensional reconstruction algorithm are compared when the model is optimized using the bundle adjustment method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>моделирование</kwd><kwd>трехмерная реконструкция</kwd><kwd>генеративно-состязательные модели</kwd><kwd>генерация текстур</kwd><kwd>критерий оптимальности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>modelling</kwd><kwd>three-dimensional reconstruction</kwd><kwd>generative-competitive models</kwd><kwd>texture generation</kwd><kwd>optimality criterion</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Usefulness of the 3D virtual visualization surgical planning simulation and 3D model for endoscopic endonasal transsphenoidal surgery of pituitary adenoma: technical report and review of literature / A. 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