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Field evaluation of optical-based three-dimensional dynamic motion measurement system with multiple targets for a floating structure

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dc.contributor.authorYi, J.-H.-
dc.contributor.authorKim, J.-H.-
dc.contributor.authorJeong, W.M.-
dc.contributor.authorChae, J.-W.-
dc.date.accessioned2023-12-22T09:00:38Z-
dc.date.available2023-12-22T09:00:38Z-
dc.date.issued2013-
dc.identifier.issn0029-8018-
dc.identifier.urihttps://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8765-
dc.description.abstractRecently, optical-based dynamic measurement techniques are becoming more popular owing to the development of high quality and low-price hardware and image processing software. However, there exist several research issues related to these systems including the self-vibration of a capturing device and the optimal threshold value for image processing. From an application point of view, the application area is limited to the two-dimensional flume tank tests and one-dimensional deflection measurement; therefore, it is desirable to extend this application to measuring the three-dimensional motion such as the motion of a real utility-scale structure. In this study, an optical-based dynamic motion measurement technique using multiple targets is proposed to measure the three-dimensional dynamic motion of floating structures. A new scheme is also proposed to determine an appropriate threshold value to discriminate the background by minimizing an estimation error index. The proposed method is applied to field measurement of the dynamic motion of a large concrete floating structure under various wave conditions, and the results are compared with those from a conventional real-time kinematic global positioning system and a motion reference unit (MRU). The results show that the optical-based system is much better than the other two systems for measuring transverse motions, and it is comparable to the MRU device for measuring rotational motions. ? 2013 Elsevier Ltd.-
dc.format.extent12-
dc.language영어-
dc.language.isoENG-
dc.titleField evaluation of optical-based three-dimensional dynamic motion measurement system with multiple targets for a floating structure-
dc.typeArticle-
dc.publisher.location영국-
dc.identifier.doi10.1016/j.oceaneng.2012.12.046-
dc.identifier.scopusid2-s2.0-84874677175-
dc.identifier.bibliographicCitationOcean Engineering, v.62, pp 140 - 151-
dc.citation.titleOcean Engineering-
dc.citation.volume62-
dc.citation.startPage140-
dc.citation.endPage151-
dc.type.docTypeArticle-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClasssci-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusField measurement-
dc.subject.keywordPlusFloating structures-
dc.subject.keywordPlusFlume tank-
dc.subject.keywordPlusHigh quality-
dc.subject.keywordPlusImage-processing software-
dc.subject.keywordPlusMotion reference unit-
dc.subject.keywordPlusMultiple targets-
dc.subject.keywordPlusOptimal threshold-
dc.subject.keywordPlusPoint of views-
dc.subject.keywordPlusReal-Time Kinematic Global Positioning Systems-
dc.subject.keywordPlusResearch issues-
dc.subject.keywordPlusRotational motion-
dc.subject.keywordPlusSelection of threshold value-
dc.subject.keywordPlusThree-dimensional dynamics-
dc.subject.keywordPlusThree-dimensional motion-
dc.subject.keywordPlusTransverse motions-
dc.subject.keywordPlusWave conditions-
dc.subject.keywordPlusGlobal positioning system-
dc.subject.keywordPlusImage processing-
dc.subject.keywordPlusMeasurements-
dc.subject.keywordPlusThree dimensional-
dc.subject.keywordPlusTracking (position)-
dc.subject.keywordPlusOptical data processing-
dc.subject.keywordPlusfloating structure-
dc.subject.keywordPlusGPS-
dc.subject.keywordPlusmarine technology-
dc.subject.keywordPlusmeasurement method-
dc.subject.keywordPlusoptical instrument-
dc.subject.keywordPlusApplication area-
dc.subject.keywordPlusDeflection measurement-
dc.subject.keywordPlusDynamic measurement techniques-
dc.subject.keywordPlusDynamic motions-
dc.subject.keywordPlusEstimation errors-
dc.subject.keywordPlusField evaluation-
dc.subject.keywordAuthorFloating structures-
dc.subject.keywordAuthorGlobal positioning system-
dc.subject.keywordAuthorMotion reference unit-
dc.subject.keywordAuthorOptical-based dynamic motion measurement-
dc.subject.keywordAuthorSelection of threshold value-
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