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Title: Digital image correlation for whole field out-of-plane displacement measurement using a single camera
Authors: Tay, Cho Jui
Quan, Chenggen
Huang, Yuanhao
Fu, Yu
Keywords: DRNTU::Science::Physics::Optics and light
Issue Date: 2005
Source: Tay, C. J., Quan, C., Huang, Y., & Fu, Y. (2005). Digital image correlation for whole field out-of-plane displacement measurement using a single camera. Optics Communications, 251(1-3), 23-36.
Series/Report no.: Optics communications
Abstract: Digital image correlation (DIC) using a single camera has been widely used for inplane 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.
ISSN: 0030-4018
Rights: This is the author created version of a work that has been peer reviewed and accepted for publication by Optics Communications, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI:].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:TL Journal Articles

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