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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">hydrophysics</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и прикладная гидрофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Applied Hydrophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6673</issn><issn pub-type="epub">2782-5221</issn><publisher><publisher-name>St. Petersburg Research Center of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.59887/2073-6673.2024.17(3)-4</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-1369</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>ТЕХНИЧЕСКАЯ ГИДРОФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL HYDROPHYSICS</subject></subj-group></article-categories><title-group><article-title>Стереооптические методы регистрации процессов на морской поверхности</article-title><trans-title-group xml:lang="en"><trans-title>Stereooptical Methods of Sea Surface Processes Registration</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5992-4716</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богатов</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogatov</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Богатов Николай Андреевич, ведущий программист ИПФ РАН</p><p>Scopus AuthorID: 57160974600</p><p>WoS ResearcherID: E-1043–2016</p><p>603950, г. Нижний Новгород, ул. Ульянова, 46</p></bio><bio xml:lang="en"><p>603950, Ul’anova str., 46, Nizhny Novgorod</p></bio><email xlink:type="simple">nbogatov@ipfran.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/0000-0002-6528-7589</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ермошкин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ermoshkin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ермошкин Алексей Валерьевич, научный сотрудник ИПФ РАН, кандидат физико-математических наук</p><p>Scopus AuthorID: 54410480500</p><p>WоS ResearcherID: D-5271–2015</p><p>603950, г. Нижний Новгород, ул. Ульянова, 46</p></bio><bio xml:lang="en"><p>603950, Ul’anova str., 46, Nizhny Novgorod</p></bio><email xlink:type="simple">al-ermoshkin@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт прикладной физики РАН им. А.В. Гапонова-Грехова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.V. Gaponov-Grekhov Institute of Applied Physics the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>11</month><year>2024</year></pub-date><volume>17</volume><issue>3</issue><fpage>44</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Богатов Н.А., Ермошкин А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Богатов Н.А., Ермошкин А.В.</copyright-holder><copyright-holder xml:lang="en">Bogatov N.A., Ermoshkin A.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://hydrophysics.spbrc.ru/jour/article/view/1369">https://hydrophysics.spbrc.ru/jour/article/view/1369</self-uri><abstract><p>Рассмотрены методы оптических измерений физических параметров процессов на морской поверхности, в том числе покрытой льдом, с применением стереокамер. Предложен оригинальный метод обработки изображений морского льда, позволяющий выделить особенности, влияющие на рассеивание радиолокационного сигнала, такие как участки с открытой водой и острые кромки льдин. В основе метода лежит определение областей интереса на оптическом изображении, расчет статистических характеристик для каждой области, их классификация и определение локальных порогов для выделения искомых структур. Использование стереокамер в свою очередь позволяет учесть перспективные искажения и рассчитать физические параметры ледяного покрова и ветрового волнения. Метод апробирован на данных, полученных в ходе 90-го рейса научно-исследовательского судна «Академик Мстислав Келдыш» в море Лаптевых. Для открытой воды приведены результаты измерения скорости ветровой ряби, полученные с помощью разработанного ранее стереооптического метода. Проводится их сопоставление с Доплеровским сдвигом скорости СВЧ радиоволн. Предложенные в работе методы представляют интерес при проведении натурных экспериментов одновременно с применением когерентных радиолокаторов для количественной интерпретации радиолокационных данных, а также для развития методов дистанционного мониторинга морской поверхности и ледовой обстановки.</p></abstract><trans-abstract xml:lang="en"><p>This work presents the optical methods for measurements of physical parameters on sea surface also covered by ice by using stereo cameras. New method of images with sea ice processing is offered. It can detect areas of open water and sharp edges on ice, which influence on radar signal refraction. This method is based on area of interest detection on optical images, statistical parameters for each area calculation, classification and local level definition to recognize needed structures. By using stereo system perspective distortions can be corrected and physical parameters of wind waves and sea ice can be calculated. This method was probe on stereo images obtained from 90th voyage of R/V «Akademik Mstislav Keldysh» in the Laptev Sea.</p><p>The results of ripple waves velocity measurements in case on open water by using development previously stereo method is presented. Comparison with Doppler shift of microwave signal is made.</p><p>The methods presented in this paper are of interest in field experiments simultaneously with the use of coherent radar stations for the quantitative interpretation of radar data, as well as for remote monitoring of the sea surface and ice conditions methods development.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стереосъемка</kwd><kwd>обработка изображений</kwd><kwd>лед</kwd><kwd>ветровая рябь</kwd><kwd>натурные измерения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stereo photography</kwd><kwd>image processing</kwd><kwd>ice</kwd><kwd>wind ripple</kwd><kwd>nature measurements</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 20-77-10081, https://rscf.ru/project/20-77-10081/.</funding-statement><funding-statement xml:lang="en">The research was supported by the Russian Science Foundation grant No. 20-77-10081, https://rscf.ru/project/20-77-10081/.</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">Zakhvatkina N., Smirnov V., Bychkova I. Satellite SAR data-based sea ice classification: An overview // Geosciences. 2019. Vol. 9, N 4. P. 152. doi:10.3390/geosciences9040152</mixed-citation><mixed-citation xml:lang="en">Zakhvatkina N., Smirnov V., Bychkova I. Satellite SAR Data-based Sea Ice Classification: An Overview. Geosciences. 2019, 9, 4, 152 p. doi:10.3390/geosciences9040152</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Rohith M.V., Jones J., Eicken H., Kambhamettu C. Extracting quantitative information on coastal ice dynamics and ice hazard events from marine radar digital imagery // IEEE Transactions on Geoscience and Remote Sensing. May 2013. Vol. 51, N 5. P. 2556–2570. doi:10.1109/TGRS.2012.2217972</mixed-citation><mixed-citation xml:lang="en">Rohith M.V., Jones J., Eicken H., Kambhamettu C. Extracting Quantitative Information on Coastal Ice Dynamics and Ice Hazard Events From Marine Radar Digital Imagery. IEEE Transactions on Geoscience and Remote Sensing. May 2013, 51, 5, 2556–2570. doi:10.1109/TGRS.2012.2217972</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Otsu N. A threshold selection method from gray-level histograms // IEEE Transactions on Systems, Man and Cybernet ics. 1979. Vol. 9. P. 62–66. doi:10.1109/TSMC.1979.4310076</mixed-citation><mixed-citation xml:lang="en">Otsu N. A threshold selection method from gray-level histograms. IEEE Transactions on Systems, Man and Cyber netics. 1979, 9, 62–66. doi:10.1109/TSMC.1979.4310076</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Banner M.L., Jones I.S.F., Trinder J.C. Wavenumber spectra of short gravity waves // Journal of Fluid Mechanics. 1989. Vol. 198. P. 321–344. doi:10.1017/S0022112089000157</mixed-citation><mixed-citation xml:lang="en">Banner M.L., Jones I.S.F., Trinder J.C. Wavenumber spectra of short gravity waves. Journal of Fluid Mechanics. 1989, 198, 321–344. doi:10.1017/S0022112089000157</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Shemdin O., Tran H. Measuring short surface waves with stereography // Photogrammetric Engineering and Remote Sensing. 1992. Vol. 58. P. 311–316.</mixed-citation><mixed-citation xml:lang="en">Shemdin O., Tran H. Measuring Short Surface Waves with Stereography. Photogrammetric Engineering and Remote Sensing. 1992, 58, 311–316.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Benetazzo A. Measurements of short water waves using stereo matched image sequences // Coastal Engineering. 2006. Vol. 53, N 12. P. 1013–1032. doi:10.1016/j.coastaleng.2006.06.012</mixed-citation><mixed-citation xml:lang="en">Benetazzo A. Measurements of short water waves using stereo matched image sequences. Coastal Engineering. 2006, 53, 12, 1013–1032. doi:10.1016/j.coastaleng.2006.06.012</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Богатов Н.А., Мольков А.А. Восстановление характеристик ветровых волн в Атлантике по данным судовой стерео съемки // Фундаментальная и прикладная гидрофизика. 2021. Т. 14, № 4. С. 90–97. doi:10.7868/S2073667321040080</mixed-citation><mixed-citation xml:lang="en">Bogatov N.A., Molkov A.A. Retrieval of wind-driven waves in the Atlantic Ocean by stereo imagery. Fundamental and Applied Hydrophysics. 2021, 14, 4, 90–97. doi:10.7868/S2073667321040080 (In Russian)</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Turney D.E., Anderer A., Banerjee S. A method for three-dimensional interfacial particle image velocimetry (3D-IPIV) of an air–water interface // Measurement Science and Technology. 2009. Vol. 20, N 4. doi:10.1088/0957–0233/20/4/045403</mixed-citation><mixed-citation xml:lang="en">Turney D.E., Anderer A., Banerjee S. A method for three-dimensional interfacial particle image velocimetry (3D-IPIV) of an air–water interface. Measurement Science and Technology. 2009, 20, 4. doi:10.1088/0957–0233/20/4/045403</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Simoncelli S., Kirillin G., Tolomeev A.P., Grossart H.-P. A low-cost underwater particle tracking velocimetry system for measuring in situ particle flux and sedimentation rate in low- turbulence environments // Limnology and Oceanography: Methods. 2019. Vol. 17, Iss. 12. P. 665–681. doi:10.1002/lom3.10341</mixed-citation><mixed-citation xml:lang="en">Simoncelli S., Kirillin G., Tolomeev A.P., Grossart H.-P. A low-cost underwater particle tracking velocimetry system for measuring in situ particle flux and sedimentation rate in low- turbulence environments. Limnology and Oceanography: Methods. 2019, 17, 12, 665–681. doi:10.1002/lom3.10341</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Богатов Н.А., Капустин И.А., Мольков А.А., Ермошкин А.В. Измерение скорости ветровой ряби на профиле длинной волны с применением метода стереосъёмки // Современные проблемы дистанционного зондирования Земли из космоса. 2023. Т. 20, № 2. С. 216–225. doi:10.21046/2070-7401-2023-20-2-216-225</mixed-citation><mixed-citation xml:lang="en">Bogatov N.A., Kapustin I.A., Molkov A.A., Ermoshkin A.V. Retrieval of wind ripple speed from stereo imagery of sea surface. Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa. 2023, 20, 2, 216–225. doi:10.21046/2070-7401-2023-20-2-216-225</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Canny J. A computational approach to edge detection // IEEE Transactions on Pattern Analysis and Machine Intelli gence. Nov. 1986. Vol. PAMI-8, N 6. P. 679–698. doi:10.1109/TPAMI.1986.4767851</mixed-citation><mixed-citation xml:lang="en">Canny J. A Computational Approach to Edge Detection. IEEE Transactions on Pattern Analysis and Machine Intel ligence. 1986, PAMI-8, 6, 679–698. doi:10.1109/TPAMI.1986.4767851</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Raffel M., Willert C.E., Scarano F., Kähler C.J., Wereley S.T., Kompenhans J. Particle Image Velocimetry: A Practical Guide. Springer, 2018. 695 p.</mixed-citation><mixed-citation xml:lang="en">Raffel M., Willert C.E., Scarano F., Kähler C.J., Wereley S.T., Kompenhans J., Particle Image Velocimetry: A Practical Guide, Springer, 2018, 695 p.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Kaehler A., Bradski G. Learning OpenCV 3: Computer Vision in C++ with the OpenCV // O’Reilly Media, Inc. 2016. 1024 p.</mixed-citation><mixed-citation xml:lang="en">Kaehler A., Bradski G. Learning OpenCV 3: Computer Vision in C++ with the OpenCV. O’Reilly Media, Inc. 2016, 1024 p.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Chapron B., Collard F., Ardhuin F. Direct measurements of ocean surface velocity from space: Interpretation and valida tion // Journal of Geophysical Research: Oceans. 2005. 110. C07008. doi:10.1029/2004JC002809</mixed-citation><mixed-citation xml:lang="en">Chapron B., Collard F., Ardhuin F. Direct measurements of ocean surface velocity from space: Interpretation and vali dation. Journal of Geophysical Research: Oceans. 2005, 110, C07008. doi:10.1029/2004JC002809</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Ермошкин А.В., Капустин И.А., Мольков А.А., Богатов Н.А. Определение скорости течения на морской поверхности доплеровским радиолокатором X-диапазона // Фундаментальная и прикладная гидрофизика. 2020. Т. 13, № 3. С. 93–103. doi:10.7868/S2073667320030089</mixed-citation><mixed-citation xml:lang="en">Ermoshkin A.V., Kapustin I.A., Molkov A.A., Bogatov N.A. Determination of the Sea Surface Current by a Dop pler X-Band Radar. Fundamental and Applied Hydrophysics. 2020, 13, 3, 93–103. doi:10.7868/S2073667320030089 (In Russian)</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
