Integrating a hive triangle pattern with subpixel analysis for noncontact measurement of structural dynamic response by using a novel image processing scheme

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題名:	Integrating a hive triangle pattern with subpixel analysis for noncontact measurement of structural dynamic response by using a novel image processing scheme
作者:	林子軒;Lu, Yung-Chi;Lin, Tzu-Hsuan;Hung, Shih-Lin
貢獻者:	工學院土木工程學系
關鍵詞:	Accuracy;Algorithms;Civil engineering;Construction;Digital cameras;Image Interpretation, Computer-Assisted;Image processing;Image Processing, Computer-Assisted - methods;Methods;Structural analysis (Engineering)
日期:	2014-01-01
上傳時間:	2026-04-21 13:42:39 (UTC+8)
出版者:	Hindawi Limited;Cairo, Egypt: Hindawi Publishing Corporation
摘要:	摘要： This work presents a digital image processing approach with a unique hive triangle pattern by integrating subpixel analysis for noncontact measurement of structural dynamic response data. Feasibility of proposed approach is demonstrated based on numerical simulation of a photography experiment. According to those results, the measured time-history displacement of simulated image correlates well with the numerical solution. A small three-story frame is then mounted on a small shaker table, and a linear variation differential transformation (LVDT) is set on the second floor. Experimental results indicate that the relative error between data from LVDT and analyzed data from digital image correlation is below 0.007%, 0.0205 in terms of frequency and displacement, respectively. Additionally, the appropriate image block affects the estimation accuracy of the measurement system. Importantly, the proposed approach for evaluating pattern center and size is highly promising for use in assigning the adaptive block for a digital image correlation method. 其他題名： ScientificWorldJournal 出版者： Cairo, Egypt: Hindawi Publishing Corporation 出版日期： 2014-01-01 出處： TheScientificWorld, 2014-01, Vol.2014 (2014), p.1-11 資源來源： Agricultural & Environmental Science Collection 版權： Copyright © 2014 Yung-Chi Lu et al. 版權： COPYRIGHT 2014 John Wiley & Sons, Inc. 版權： COPYRIGHT 2014 Hindawi Limited 版權： Copyright © 2014 Yung-Chi Lu et al. Yung-Chi Lu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 版權： Copyright © 2014 Yung-Chi Lu et al. 2014 識別號： ISSN: 2356-6140 識別號： ISSN: 1537-744X 識別號： EISSN: 1537-744X 識別號： DOI: 10.1155/2014/375210 識別號： PMID: 24955396
顯示於類別:	[土木工程學系 ] 期刊論文

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