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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">izvestswsu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1560</issn><issn pub-type="epub">2686-6757</issn><publisher><publisher-name>ЮЗГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1560-2020-24-4-57-75</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestswsu-820</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>Информатика, вычислительная техника и управление</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Computer science, computer engineering and IT managment</subject></subj-group></article-categories><title-group><article-title>Идентификация человека по походке в видеопотоке</article-title><trans-title-group xml:lang="en"><trans-title>Identification of a Person by Gait in a Video Stream</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>Уздяев</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Uzdiaev</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уздяев Михаил Юрьевич, младший научный сотрудник лаборатории технологий больших данных социокиберфизических систем </p><p>14-я линия В.О., 39, г. Санкт-Петербург 199178</p></bio><bio xml:lang="en"><p>Mikhail Yu. Uzdiaev, Junior Researcher of Laboratory of Big Data in Socio-Cyberphysical Systems </p><p>39, 14th Line, St. Petersburg 199178</p></bio><email xlink:type="simple">m.y.uzdiaev@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>Яковлев</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Iakovlev</surname><given-names>R. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яковлев Роман Никитич, младший научный сотрудник лаборатории технологий больших данных социокиберфизических систем </p><p>14-я линия В.О., 39, г. Санкт-Петербург 199178</p></bio><bio xml:lang="en"><p>Roman N. Iakovlev, Junior Researcher of Laboratory of Big Data in Socio-Cyberphysical Systems </p><p>39, 14th Line, St. Petersburg 199178</p></bio><email xlink:type="simple">iakovlev.r@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>Дударенко</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Dudarenko</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дударенко Дмитрий Михайлович, младший научный сотрудник лаборатории технологий больших данных социокиберфизических систем </p><p>14-я линия В.О., 39, г. Санкт-Петербург 199178</p></bio><bio xml:lang="en"><p>Dmitry М. Dudarenko, Junior Researcher of Laboratory of Big Data in Socio-Cyberphysical Systems </p><p>39, 14th Line, St. Petersburg 199178</p></bio><email xlink:type="simple">dmitry@dudarenko.net</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>Жебрун</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhebrun</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жебрун Александр Дмитриевич, программист лаборатории технологий больших данных социокиберфизических систем </p><p>14-я линия В.О., 39, г. Санкт-Петербург 199178</p></bio><bio xml:lang="en"><p>Aleksandr D. Zhebrun, Programmer of Laboratory of Big Data in Socio-Cyberphysical Systems </p><p>39, 14th Line, St. Petersburg 199178</p></bio><email xlink:type="simple">sashakotovich@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский Федеральный исследовательский центр Российской академии наук, Санкт-Петербургский институт информатики и автоматизации Российской академии наук</institution></aff><aff xml:lang="en"><institution>St. Petersburg Federal Research Center of the Russian Academy of Sciences (SPC RAS), St. Petersburg Institute for Informatics and Automation of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>03</day><month>02</month><year>2021</year></pub-date><volume>24</volume><issue>4</issue><fpage>57</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Уздяев М.Ю., Яковлев Р.Н., Дударенко Д.М., Жебрун А.Д., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Уздяев М.Ю., Яковлев Р.Н., Дударенко Д.М., Жебрун А.Д.</copyright-holder><copyright-holder xml:lang="en">Uzdiaev M.Y., Iakovlev R.N., Dudarenko D.M., Zhebrun A.D.</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://izvestswsu.elpub.ru/jour/article/view/820">https://izvestswsu.elpub.ru/jour/article/view/820</self-uri><abstract><p>Цель исследования. Данная работа посвящена проблеме идентификации человека по походке с помощью нейросетевых моделей распознавания, ориентированных на работу с RGB изображениями. Главным преимуществом использования нейросетевых моделей перед существующими методами анализа двигательной активности является получение изображений из видеопотока без предобработки кадров, увеличивающей время анализа. Методы. В данной работе был предложен подход к идентификации человека по походке, который основывается на идее многоклассовой классификации на видеопоследовательностях. Оценка качества функционирования разработанного подхода производилась на основе набора данных CASIA Gait Database, включающего в себя более 15000 видеопоследовательностей. В качестве классификаторов были апробированы 5 нейросетевых артитектур: трехмерная сверточная нейронная сеть I3D, а также 4 архитектуры, представляющие собой сверточно-рекуррентные сети, такие, как однонаправленная и двунаправленная LTSM, однонаправленная и двунаправленная GRU, скомбинированные со сверточной нейронной сетью архитектуры ResNet, используемой в данных архитектурах в качестве экстрактора визуальных признаков. Результаты. Согласно результатам проведенного тестирования, разработанный подход предоставляет возможность осуществлять идентификацию человека в видеопотоке в режиме реального времени без использования специализированного оборудования. По результатам его апробации с помощью рассматриваемых нейросетевых моделей точность идентификации человека составила более 80% для сверточно-рекуррентных моделей и 79% для модели I3D. Заключение. Предложенные модели на основе архитектуры I3D и сверточно-рекуррентных архитектур показали более высокую точность, чем существующие методы решения задачи идентификации человека по походке. За счет возможности покадровой обработки видео наиболее предпочтительным классификатором для разработанного подхода является использование сверточно-рекуррентных архитектур на основе однонаправленной LSTM или GRU моделей соответственно.</p></abstract><trans-abstract xml:lang="en"><p>Purpose of research. The given paper considers the problem of identifying a person by gait through the use of neural network recognition models focused on working with RGB images. The main advantage of using neural network models over existing methods of motor activity analysis is obtaining images from the video stream without frames preprocessing, which increases the analysis time. Methods. The present paper presents an approach to identifying a person by gait. The approach is based upon the idea of multi-class classification on video sequences. The quality of the developed approach operation was evaluated on the basis of CASIA Gait Database data set, which includes more than 15,000 video sequences. As classifiers, 5 neural network architectures have been tested: the three-dimensional convolutional neural network I3D, as well as 4 architectures representing convolutional-recurrent networks, such as unidirectional and bidirectional LTSM, unidirectional and bidirectional GRU, combined with the convolutional neural network of ResNet architecture being used in these architectures as a visual feature extractor. Results. According to the results of the conducted testing, the developed approach makes it possible to identify a person in a video stream in real-time mode without the use of specialized equipment. According to the results of its testing and through the use of the neural network models under consideration, the accuracy of human identification was more than 80% for convolutional-recurrent models and 79% for the I3D model. Conclusion. The suggested models based on I3D architecture and convolutional-recurrent architectures have shown higher accuracy for solving the problem of identifying a person by gait than existing methods. Due to the possibility of frame-by-frame video processing, the most preferred classifier for the developed approach is the use of convolutional-recurrent architectures based on unidirectional LSTM or GRU models, respectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нейронные сети</kwd><kwd>компьютерное зрение</kwd><kwd>сверточные нейронные сети</kwd><kwd>рекуррентные нейронные сети</kwd><kwd>I3D</kwd><kwd>методы идентификации человека</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neural networks</kwd><kwd>computer vision</kwd><kwd>convolutional neural networks</kwd><kwd>recurrent neural networks</kwd><kwd>I3D</kwd><kwd>human identification techniques</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">Распознавание лиц на групповых фотографиях с использованием алгоритмов сегментации / А.И. Шерстобитов, В.П. Федосов, В.А. Приходченко, М.В. 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