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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">sapi</journal-id><journal-title-group><journal-title xml:lang="ru">Системный анализ и прикладная информатика</journal-title><trans-title-group xml:lang="en"><trans-title>«System analysis and applied information science»</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2309-4923</issn><issn pub-type="epub">2414-0481</issn><publisher><publisher-name>Belarusian National Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/2309-4923-2022-4-47-55</article-id><article-id custom-type="elpub" pub-id-type="custom">sapi-593</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>Обработка информации и принятие решений</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Data processing and decision–making</subject></subj-group></article-categories><title-group><article-title>Об инвариантности цифрового описания рукописной подписи</article-title><trans-title-group xml:lang="en"><trans-title>On the invariance of the digital description of a handwritten signature</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>Ахунджанов</surname><given-names>У. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhundjanov</surname><given-names>U. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ахунджанов Умиджон Юнус угли, аспирант</p></bio><email xlink:type="simple">umidjan_90@mail.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>Старовойтов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Starovoitov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старовойтов Валерий Васильевич, доктор технических наук, профессор. Главный научный сотрудник ОИПИ НАН Беларуси, профессор БНТУ</p></bio><bio xml:lang="en"/><email xlink:type="simple">mido@bntu.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Объединенный институт проблем информатики Национальной академии наук Беларуси</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>United Institute of Informatics Problems, National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Объединенный институт проблем информатики Национальной академии наук Беларуси; &#13;
Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>United Institute of Informatics Problems, National Academy of Sciences of Belarus; &#13;
Belarusian National Technical University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>24</day><month>02</month><year>2023</year></pub-date><volume>0</volume><issue>4</issue><fpage>47</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ахунджанов У.Ю., Старовойтов В.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ахунджанов У.Ю., Старовойтов В.В.</copyright-holder><copyright-holder xml:lang="en">Akhundjanov U.Y., Starovoitov V.V.</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://sapi.bntu.by/jour/article/view/593">https://sapi.bntu.by/jour/article/view/593</self-uri><abstract><p> В статье представлены результаты экспериментов, выполненных с целью исследования инвариантности цифрового описания изображения рукописной подписи, представленной на бумажном носителе. Описание строится на базе нормализованного изображения подписи, оцифрованного в видимом диапазоне электромагнитного спектра сканером, с последующим вычислением распределения ее локальных особенностей. Экспериментально исследована изменчивость данного представления подписи относительно разных условий, имитирующих изменение ее цвета, ориентации на бумаге, толщины линии и размеров. Показано, что цифровое описание изображения рукописной подписи, ранее предложенное авторами, достаточно инвариантно относительно перечисленных условий ее исполнения для выполнения процедуры верификации рукописной подписи.</p></abstract><trans-abstract xml:lang="en"><p>The article presents results of our experiments carried out to study the invariance of the digital description of the image of a handwritten signature presented on paper. The description is built on the basis of a normalized image of the signature, digitized in the visible range of the electromagnetic spectrum by a scanner, with subsequent calculation of the distribution of its local features. The variability of this representation of the signature under different conditions simulating a change in its color, orientation on paper, line thickness and dimensions has been experimentally studied. It is shown that the digital description of the handwritten signature image, previously proposed by the authors, is sufficiently invariant with respect to the listed conditions for its execution to perform the off-line signature verification procedure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>подпись</kwd><kwd>цифровое описание подписи</kwd><kwd>бинарное изображение подписи</kwd><kwd>локальный бинарный шаблон</kwd><kwd>инвариантность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>signature</kwd><kwd>digital signature representation</kwd><kwd>binary signature representation</kwd><kwd>local binary pattern</kwd><kwd>invariance</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">Ferrer, M. A. A behavioral handwriting model for static and dynamic signature synthesis / M. A. Ferrer, M. Diaz, C. Carmona-Duarte, A. 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