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Deconvolving Strain Maps Obtained With the Grid Method

Michel Grediac 1 Frédéric Sur 2 Claudiu Badulescu 3 Jean-Denis Mathias 4 
2 MAGRIT - Visual Augmentation of Complex Environments
Inria Nancy - Grand Est, LORIA - ALGO - Department of Algorithms, Computation, Image and Geometry
LBMS - Laboratoire brestois de mécanique et des systèmes
Abstract : The use of various deconvolution techniques to enhance strain maps obtained with the grid method is addressed in this study. Since phase derivative maps obtained with this measurement technique can be approximated by their actual counterparts convolved by the envelope of the kernel used to extract phases and phase derivatives, non-blind restoration techniques can be used to perform deconvolution. Six deconvolution techniques are compared here in order to restore a synthetic phase derivative map. Obtained results are analyzed and discussed.
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Submitted on : Friday, September 12, 2014 - 2:23:53 PM
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Michel Grediac, Frédéric Sur, Claudiu Badulescu, Jean-Denis Mathias. Deconvolving Strain Maps Obtained With the Grid Method. SEM Annual Conference & Exposition on Experimental and Applied Mechanics - 2013, Jun 2013, Lombard, Illinois, United States. pp.21-26, ⟨10.1007/978-3-319-00768-7_4⟩. ⟨hal-00830091⟩



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