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Title: Shear measurement in digital speckle shearing interferometry using digital correlation
Authors: Ng, T.W. 
Issue Date: 15-Mar-1995
Citation: Ng, T.W. (1995-03-15). Shear measurement in digital speckle shearing interferometry using digital correlation. Optics Communications 115 (3-4) : 241-244. ScholarBank@NUS Repository.
Abstract: Accurate computations of surface slope deformation based on digital speckle shearing interferometry fringe patterns require a precise measure of the amount of shear introduced. A previous method of employing image processing, while providing accurate and fast measurements, is limited by the need to place a tape target on the object surface. In this paper, a novel method employing digital correlation is demonstrated to obviate this requirement while maintaining accurate mensurations of shear. It also allows automated measurement procedures to be readily incorporated. © 1995.
Source Title: Optics Communications
ISSN: 00304018
Appears in Collections:Staff Publications

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