期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeng.2011.07.023
关键词
Digital Image Processing; Digital Image Correlation Technique; Displacement Response; Multi-point Measurement
In this study, a method to measure multi-point displacement responses by using a digital image processing technique is suggested. Digital images are acquired by a commercial digital camcorder, which is the sensor to measure remote displacement responses considering convenient and economical aspects for use. The digital image correlation (DIC) as one of digital image processing techniques is applied to the algorithm developed and the image transform function (ITF) to correct the movements and errors between the image without deformation and that with deformation is also used to increase the resolution of displacement responses. One shaking table test and several field tests to validate this algorithm, which can measure multi-point displacement responses of structures by using digital image processing techniques, were carried out. (C) 2011 Published by Elsevier Ltd.
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