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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">izmertech</journal-id><journal-title-group><journal-title xml:lang="ru">Измерительная техника</journal-title><trans-title-group xml:lang="en"><trans-title>Izmeritel`naya Tekhnika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-1025</issn><issn pub-type="epub">2949-5237</issn><publisher><publisher-name>ФГУП "ВНИИФТРИ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32446/0368-1025it.2022-6-36-40</article-id><article-id custom-type="elpub" pub-id-type="custom">izmertech-1609</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>ЛИНЕЙНЫЕ И УГЛОВЫЕ ИЗМЕРЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LINEAR AND ANGULAR MEASUREMENTS</subject></subj-group></article-categories><title-group><article-title>Метод фазовой триангуляции со статистической фильтрацией для измерений в условиях случайных аддитивных помех и ограниченного динамического диапазона фотоприёмника</article-title><trans-title-group xml:lang="en"><trans-title>Phase triangulation method with statistical filtering for measurements under conditions of random additive noise and a limited dynamic range of a photodetector</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0018-7675</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Двойнишников</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dvoynishnikov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Владимирович Двойнишников</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Sergey V. Dvoynishnikov</p><p>Novosibirsk</p></bio><email xlink:type="simple">dv.s@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3765-342X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меледин</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Meledin</surname><given-names>Y. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Генриевич Меледин</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Vladimir G. Meledin</p><p>Novosibirsk</p></bio><email xlink:type="simple">meledin@itp.nsc.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2002-2998</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кабардин</surname><given-names>И. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kabardin</surname><given-names>I. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Константинович Кабардин</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Ivan K. Kabardin</p><p>Novosibirsk</p></bio><email xlink:type="simple">ivankabardin@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9835-6520</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рахманов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rakhmanov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виталий Владиславович Рахманов</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Vitaly V. Rakhmanov</p><p>Novosibirsk</p></bio><email xlink:type="simple">rahmanov@inbox.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8317-3278</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зуев</surname><given-names>В. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Zuev</surname><given-names>V. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владислав Олегович Зуев</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Vladislav O. Zuev</p><p>Novosibirsk</p></bio><email xlink:type="simple">vlad.zuev.0017@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт теплофизики им. С. С. Кутателадзе СО РАН; Новосибирский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kutateladze Institute of thermophysics SB RAS; Novosibirsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт теплофизики им. С. С. Кутателадзе СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kutateladze Institute of thermophysics SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>05</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>36</fpage><lpage>40</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ФГУП "ВНИИФТРИ", 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">ФГУП "ВНИИФТРИ"</copyright-holder><copyright-holder xml:lang="en">ФГУП "ВНИИФТРИ"</copyright-holder><license xlink:href="https://www.izmt.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.izmt.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.izmt.ru/jour/article/view/1609">https://www.izmt.ru/jour/article/view/1609</self-uri><abstract><p>Изучено применение оптических методов для измерения параметров трёхмерных объектов. Рассмотрены методы расшифровки фазовых изображений в условиях аддитивных помех и ограниченного динамического диапазона фотоприёмника. Существующие методы расшифровки фазовых изображений вносят нелинейные искажения и систематическую погрешность в результаты измерений в указанных условиях. Предложен исключающий систематические искажения результатов измерений метод фазовой триангуляции со статистической фильтрацией данных для измерения трёхмерного профиля объекта в условиях случайного аддитивного шума и ограниченного динамического диапазона фотоприёмника. Метод основан на адаптивной фильтрации и статистическом анализе распределения интенсивности в зарегистрированных фазовых изображениях. Аналитически исследована погрешность метода расшифровки фазовых изображений с использованием статистической фильтрации данных и пороговой фильтрации. Предложенный метод можно применять для расшифровки данных в системах измерения трёхмерной геометрии, реализующих метод фазовой триангуляции.</p></abstract><trans-abstract xml:lang="en"><p>The application of optical methods for measuring the parameters of three-dimensional objects has been studied. Methods for decoding phase images under conditions of additive noise and a limited dynamic range of a photodetector are considered. The existing methods for decoding phase images introduce nonlinear distortions and systematic error into the measurement results under such conditions. A phase triangulation method with statistical data fitering is proposed for measuring the three-dimensional profie of an object under conditions of random additive noise and a limited dynamic range of a hotodetector, which excludes systematic distortions of the measurement results. The method is based on adaptive filtering and statistical analysisof the intensity distribution in the recorded phase images. The error of the method of decoding phase images using statistical data filtering and threshold fi ltering is analyzed analytically. The proposed method can be used to decode data in systems for measuring three-dimensional geometry that implement the phase triangulation method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>трёхмерная геометрия</kwd><kwd>фазовая триангуляция</kwd><kwd>динамический диапазон</kwd><kwd>статистический анализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>3D-geometry</kwd><kwd>phase triangulation</kwd><kwd>dynamic range</kwd><kwd>statistical analysis</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">Gorthi S. S., Rastogi P., Optics and Lasers in Engineering, 2010, vol. 48, iss. 2, pp. 133–140. https://doi.org/10.1016/j.optlaseng.2009.09.001</mixed-citation><mixed-citation xml:lang="en">Gorthi S. 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