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Title: 3-D deformation measurement using fringe projection and digital image correlation
Authors: Quan, C. 
Tay, C.J. 
Huang, Y.H.
Keywords: 3-D deformation measurement
Digital image correlation
Fast fourier transforms
Fringe projection
Issue Date: 2004
Citation: Quan, C.,Tay, C.J.,Huang, Y.H. (2004). 3-D deformation measurement using fringe projection and digital image correlation. Optik 115 (4) : 164-168. ScholarBank@NUS Repository.
Abstract: In this study, we propose an integrated method which combines fringe projection and digital image correlation (DIC) method into one optical system for 3-dimensional displacement measurement. Sinusoidal fringes are projected on an object using a liquid crystal display (LCD) fringe projector. Two sets of images, one containing projected fringes and the other with only white light speckle background, are captured by a CCD camera and processed using DIC to obtain in-plane displacement. Fourier transform is also employed to evaluate the images for out-of-plane displacement. Experimental results are compared with analytic solutions and the results demonstrate that both in-plane and out-ofplane displacements can be accurately measured using the proposed method.
Source Title: Optik
ISSN: 00304026
Appears in Collections:Staff Publications

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