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http://dx.doi.org/10.5050/KSNVN.2009.19.9.943

Measuring Structural Vibration from Video Signal Using Curve Fitting  

Jeon, Hyeong-Seop (충남 대학교 정보통신공학과)
Choi, Young-Chul (한국원자력연구원)
Park, Jong-Won (충남대학교 정보통신공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.19, no.9, 2009 , pp. 943-949 More about this Journal
Abstract
Many studies for measuring vibration using image signal are suggested. These methods can measure vibration of multi-points simultaneously. However, it has the disadvantage that is very sensitive to an environment. If the measured environment is not good, image signals can be measured including much background noise. So, it is difficult to obtain accurate vibration from the measured image signals. Another problem is that camera imaging has a resolution limit. Because the resolution of the camera image is relatively much lower than that of a data acquisition system, accurate measuring vibration cannot be performed. In this paper, we proposed the enhanced technique for measuring vibration using camera signal. The key word of this paper is a curve fitting. The curve fitting can exactly detect the measurement line of interested object. So, we can measure the vibration in noisy environment. Also, it can overcome the resolution limit.
Keywords
Displacement Measurement; Curve Fitting; Video Signal; Vibration; Camera;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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