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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">10.17586/0021-3454-2026-69-1-34-48</article-id><article-id custom-type="elpub" pub-id-type="custom">pribor-452</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>СИСТЕМНЫЙ АНАЛИЗ, УПРАВЛЕНИЕ И ОБРАБОТКА ИНФОРМАЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SYSTEM ANALYSIS, MANAGEMENT AND INFORMATION PROCESSING</subject></subj-group></article-categories><title-group><article-title>Алгоритм оценивания центроидов звезд на смазанных космических изображениях</article-title><trans-title-group xml:lang="en"><trans-title>Algorithm for estimating star centroids in blurred space images</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>Гмыря</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gmyrya</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерия Александровна Гмыря —аспирант; Центр образовательных программ ФАКТ (Физтех-школы аэрокосмических технологий)</p><p>Долгопрудный, Московская область</p></bio><bio xml:lang="en"><p>Valeria A. Gmyrya — Post-Graduate Student; Center of Educational Programs of Aerospace Technologies Department;</p><p>Dolgoprudny, Moscow Region</p></bio><email xlink:type="simple">gmyria.va@phystech.edu</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский физико-технический институт</institution></aff><aff xml:lang="en"><institution>Moscow Institute of Physics and Technology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>14</day><month>02</month><year>2026</year></pub-date><volume>69</volume><issue>1</issue><fpage>34</fpage><lpage>48</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Национальный исследовательский университет ИТМО, 2026</copyright-statement><copyright-year>2026</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/452">https://pribor.ifmo.ru/jour/article/view/452</self-uri><abstract><p>Динамические условия съемки создают фотографический дефект изображения (размытие, „смаз“), который приводит к искажениям регистрируемой сцены. Для обеспечения необходимой эффективности работы звездного датчика требуются дополнительные методы обработки изображений, направленные на компенсацию искажающих факторов. Предложен алгоритм оценивания центроидов звезд на смазанных изображениях, основанный на методах шумоподавления и деконволюции изображений. На этапе шумоподавления к исходному изображению применяется билатеральный фильтр, что позволяет в несколько раз увеличить отношение сигнал/ шум звезд. Далее для детектирования предполагаемых звезд производится удаление фонового шума. Очищенное от фона изображение поступает на вход алгоритма Люси — Ричардсона для решения задачи деконволюции. К восстановленному в ходе деконволюции изображению применяется однопроходный алгоритм кластеризации для оценки центроидов обнаруженных звезд. Работа алгоритма была проверена экспериментально на трех тестовых наборах изображений с разными параметрами „смаза“. При фиксированных параметрах предлагаемый алгоритм обеспечивает более высокие показатели точности и надежности, чем два других ранее известных аналога. Однако для повышения эффективности предлагаемого алгоритма требуется точная оценка параметров „смаза“, в противном случае это приведет к большим погрешностям оценки координат.</p></abstract><trans-abstract xml:lang="en"><p>Dynamic shooting conditions create the effect of blurring images, which leads to distortion of the recorded scene. To ensure the necessary efficiency of the star sensor, additional image processing methods aimed at compensating for distorting factors are required. An algorithm for estimating the centroids of stars in blurred images based on the methods of noise reduction and image deconvolution is proposed. At the noise reduction stage, a bilateral filter is applied to the original image, which makes it possible to increase the signal-to-noise ratio of the stars several times. Next, background noise is removed to detect suspected stars. The image cleared of the background is sent to the input of the Lucy—Richardson algorithm for solving the deconvolution problem. A single-pass clustering algorithm is applied to the image recovered during deconvolution to estimate the centroids of the detected stars. According to the experimental results of testing the developed algorithm on three test sets of images with different blur parameters, the described approach provides higher accuracy and reliability with fixed blur parameters than two other previously known analogues. However, to increase the efficiency of the proposed algorithm, an accurate assessment of the blur parameters is required, otherwise large errors in the estimation of coordinates are possible.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>звездный датчик</kwd><kwd>центроид</kwd><kwd>деконволюция</kwd><kwd>шумоподавление</kwd><kwd>отношение сигнал/шум</kwd></kwd-group><kwd-group xml:lang="en"><kwd>star sensor</kwd><kwd>centroid</kwd><kwd>blur</kwd><kwd>deconvolution</kwd><kwd>noise reduction</kwd><kwd>signal-to-noise ratio</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">Василюк Н. Н. Модель погрешностей звездного датчика ориентации, учитывающая погрешности калибровки элементов внутреннего ориентирования цифровой камеры // Гироскопия и навигация. 2024. Т. 32, № 1. С. 53–71.</mixed-citation><mixed-citation xml:lang="en">Vasilyuk N.N. 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