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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">pribor</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Приборостроение</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Instrument Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3454</issn><issn pub-type="epub">2500-0381</issn><publisher><publisher-name>Национальный исследовательский университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/0021-3454-2023-66-11-936-949</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-222</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>КОМПЬЮТЕРНОЕ МОДЕЛИРОВАНИЕ И АВТОМАТИЗАЦИЯ ПРОЕКТИРОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>COMPUTER MODELING AND DESIGN AUTOMATION</subject></subj-group></article-categories><title-group><article-title>Методика эффективного компьютерного моделирования устройства измерения светорассеивающих свойств</article-title><trans-title-group xml:lang="en"><trans-title>Methodology for effective computer modeling of a device for measuring light scattering properties</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>Соколов</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolov</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вадим Геннадьевич Соколов, факультет программной инженерии и компьютерной техники; старший научный сотрудник</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Vadim G. Sokolov, ITMO University, Faculty of Software Engineering and Computer Systems; Senior Researcher</p><p>St. Petersburg</p></bio><email xlink:type="simple">sokolovv1969@gmail.com</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>Потемин</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Potemin</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Станиславович Потемин, канд. техн. наук; Университет ИТМО, факультет программной инженерии и компьютерной техники; доцент</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Igor S. Potemin, PhD; ITMO University, Faculty of Software Engineering and Computer Systems; Associated Professor</p><p>St. Petersburg</p></bio><email xlink:type="simple">ipotemin@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>Жданов</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhdanov</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Дмитриевич Жданов, канд. физ.-мат. наук; факультет программной инженерии и компьютерной техники; доцент</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Dmitry D. Zhdanov, PhD; ITMO University, Faculty of Software Engineering and Computer Systems; Associated Professor</p><p>St. Petersburg</p></bio><email xlink:type="simple">ddzhdanov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution></aff><aff xml:lang="en"><institution>ITMO University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>12</month><year>2024</year></pub-date><volume>66</volume><issue>11</issue><fpage>936</fpage><lpage>949</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Национальный исследовательский университет ИТМО</copyright-holder><copyright-holder xml:lang="en">Национальный исследовательский университет ИТМО</copyright-holder><license xlink:href="https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://pribor.ifmo.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://pribor.ifmo.ru/jour/article/view/222">https://pribor.ifmo.ru/jour/article/view/222</self-uri><abstract><p>Рассматривается проблема компьютерного моделирования оптической системы со светорассеивающими элементами. Корректное моделирование устройств с такими элементами требует выполнения дли тельных световых расчетов с использованием стохастических трассировщиков лучей. Представлен подход к эффективному моделированию подобных установок на примере запатентованного устройства, предназначенного для измерения двунаправленной функции рассеяния, которая используется для описания светорассеивающих свойств. Предложена реалистичная компьютерная модель устройства, позволяющая произвести расчет допусков на отклонения в позиционировании наиболее критически важных блоков устройства и произведена оценка точности измерений с учетом допусков. Результаты моделирования измерений двунаправленных функций представлены в форме графиков и синтезированных изображений.</p></abstract><trans-abstract xml:lang="en"><p>The problem of computer simulation of an optical system with light scattering elements is considered. Correctly modeling devices with such elements requires lengthy light calculations using stochastic ray tracers. An ap proach to efficient modeling of such installations is presented using the example of a patented device designed to meas ure the bidirectional scattering function, which is used to describe light scattering properties. A realistic computer model of such a device is proposed, which makes it possible to calculate tolerances for deviations in the positioning of the most critical device blocks, and an assessment of the accuracy of its measurements is carried out. Results of measurement simulations of bidirectional functions are presented in the form of graphs and synthesized images.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компьютерное моделирование</kwd><kwd>двунаправленная функция рассеяния</kwd><kwd>двунаправленная функция отражения</kwd><kwd>двунаправленная функция пропускания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>computer simulation</kwd><kwd>bidirectional scattering distribution function</kwd><kwd>bidirectional reflectance distribution function</kwd><kwd>bidirectional transmittance distribution function</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена при поддержке Российского научного фонда, грант № 22-11-00145</funding-statement><funding-statement xml:lang="en">this work was supported by the Russian Science Foundation, grant No. 22-11-00145</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">Bartell F. 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