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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">10.21122/2309-4923-2018-1-51-57</article-id><article-id custom-type="elpub" pub-id-type="custom">sapi-203</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>СЖАТИЕ ШИРОКОГО ДИНАМИЧЕСКОГО ДИАПАЗОНА ЯРКОСТИ РАДАРНЫХ СНИМКОВ</article-title><trans-title-group xml:lang="en"><trans-title>COMPRESSION OF HIGH DYNAMIC RANGE OF SAR 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>Голуб</surname><given-names>Ю. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Golub</surname><given-names>Yu. I.</given-names></name></name-alternatives><bio xml:lang="ru"/><email xlink:type="simple">6423506@gmail.com</email><xref ref-type="aff" rid="aff-1"/></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 of the National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>12</day><month>06</month><year>2018</year></pub-date><volume>0</volume><issue>1</issue><fpage>51</fpage><lpage>57</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Голуб Ю.И., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Голуб Ю.И.</copyright-holder><copyright-holder xml:lang="en">Golub Y.I.</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/203">https://sapi.bntu.by/jour/article/view/203</self-uri><abstract><p>В статье представлены результаты экспериментов по сжатию широкого динамического диапазона яркости 16-битовых радарных снимков. Цели работы: сравнить и применить известные подходы сжатия широкого динамического диапазона яркости радарных снимков; выбор оптимальных параметров для алгоритмов сжатия динамического диапазона яркости радарных снимков; выбор безэталонной меры для оценки качества снимков после сжатия динамического диапазона. Были опробованы такие подходы тонального преобразования, как гамма-коррекция, оператор Ашихмина, µ-преобразование, а также безэталонные оценки качества. Результаты экспериментов представлены в статье. Был сделан вывод, что необходимы дальнейшие исследования и анализ различных функций и подходов к сжатию динамического диапазона яркости радарных снимков, т. к. описанные в статье подходы не дают стабильных и положительных результатов на всех имеющихся радарных изображениях. Также был сделан вывод о том, что после преобразования 16-битовых снимков очень сложно оценить, какое изображение лучше подходит для визуального восприятия человеком, и необходимо использовать безэталонную количественную оценку качества изображения.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents results of our experiments on compression of the high dynamic range SAR images. The range is equal to 16-bit. Objectives of study were comparison of known approaches to compression of the high dynamic range images; selection of optimal parameters for compression algorithms, and selection of a no-reference measure for image quality assessment after compression. Tone-mapping transformations like gamma correction, Ashikhmin-operator, mu-transformation, as well as no-reference image quality assessment measures were tested. The results of the experiments are presented in the article. It was concluded that further research and analysis of various functions and approaches to compression of dynamic range of SAR images is necessary, since including in the article approaches do not give stable and positive results on all SAR images. It was also concluded that after transformation 16-bit images, it is very difficult to estimate which image is better, and it is necessary to use no-reference image quality assessment measure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>радарные изображения</kwd><kwd>оператор тонального преобразования</kwd><kwd>сжатие динамического диапазона</kwd><kwd>безэталонная оценка качества изображений</kwd><kwd>SDR</kwd><kwd>HDR</kwd></kwd-group><kwd-group xml:lang="en"><kwd>radar images</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">БРФФИ (Ф16СРБГ-004)</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">Hoeffl , B. High-Dynamic-Range (HDR) Vision: Microelectronics, Image Processing, Computer Graphics / B. 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