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http://dx.doi.org/10.5050/KSNVE.2013.23.9.789

A Technique for Measuring Vibration Displacement Using Camera Image  

Son, Ki-Sung (SAE-AN ENGINEERING CO.)
Jeon, Hyeong-Seop (SAE-AN ENGINEERING CO.)
Park, Jin-Ho (Korea Atomic Energy Research Institute)
Park, Jong Won (Chugnam National University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.23, no.9, 2013 , pp. 789-796 More about this Journal
Abstract
Vibration measurements using image processing have been studied by many researchers as it can remotely measure vibration displacements at multiple points simultaneously. It is difficult, however, to obtain accurate displacement from the measured image signals because the resolution of image data is dependent on camera performance and normally lower than that of vibration transducer directly measured. This paper suggests the enhanced technique for vibration displacement measurement by applying the expected value of edge probability distribution to the varying pixel points in the image. The method can both increase the resolution limit of camera image and decrease the measurement errors. The working performance of the proposed technique is verified applying to the vibration measurement of a rotating machine.
Keywords
Displacement Measurement; Image Processing; Vibration; Camera;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Lee, S. B. and Kwak, M. K., 2000, Development of Vibration Measurement Technique Using the Image Processing, Proceedings of the KSNVE Annual Autumn Conference, pp. 327-329.
2 Wahbeh, A. M., Caffrey, J. P. and Masri, S. F., 2003, A Vision-based Approach for the Direct Measurement of Displacements in Vibrating Systems, Smart Structures and Materials, Vol. 12, No. 5, pp. 785-794.   DOI   ScienceOn
3 Kim, K. Y. and Kwak, M. K., 2005, Measurement of Large-amplitude and Low-frequency Vibrations of Structures Using the Image Processing Method, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 15, No. 3, pp. 329-333.   과학기술학회마을   DOI   ScienceOn
4 Jeon, H. S., Choi, Y. C. and Park, J. W., 2008, Displacement Measurement of Multi-point Using a Pattern Recognition from Video Signal, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 12, pp. 1256-1261.   과학기술학회마을   DOI   ScienceOn
5 Jeon, H. S., Choi, Y. C. and Park, J. W., 2009, Measurement Structural Vibration from Video Signal Using Curve Fitting, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 9, pp. 943-949.   DOI   ScienceOn