Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optcom.2005.02.070
Title: Digital image correlation for whole field out-of-plane displacement measurement using a single camera
Authors: Tay, C.J. 
Quan, C. 
Huang, Y.H.
Fu, Y. 
Keywords: Digital image correlation (DIC)
Magnification change
Out-of-plane displacement
Pinhole camera model
Issue Date: 1-Jul-2005
Source: Tay, C.J., Quan, C., Huang, Y.H., Fu, Y. (2005-07-01). Digital image correlation for whole field out-of-plane displacement measurement using a single camera. Optics Communications 251 (1-3) : 23-36. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2005.02.070
Abstract: Digital image correlation (DIC) using a single camera has been widely used for in-plane displacement and strain measurement. However, in order to obtain out-of-plane displacement, one should employ stereo vision systems which enable multiple directions detection. In this paper, we develop a simple method for whole field out-of-plane displacement measurement using only one camera. The proposed method employs digital image correlation to calculate an apparent in-plane displacement field which is introduced by magnification change due to an unknown out-of-plane displacement. The unknown out-of-plane displacement is subsequently determined from a pinhole camera model and the apparent in-plane displacement. Experiments conducted on a plate, a cantilever beam and a surface with height variation demonstrate that the method is simple, accurate and suitable for measurement of non-structured objects. © 2005 Elsevier B.V. All rights reserved.
Source Title: Optics Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/59957
ISSN: 00304018
DOI: 10.1016/j.optcom.2005.02.070
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