Phase recovering algorithms for extended objects encoded in digitally recorded holograms
LAUM CNRS, Université du Maine, Avenue Olivier Messiaen,
LE MANS Cedex 9,
2 École Nationale Supérieure d’Ingénieurs du Mans, rue Aristote, 72085 Le Mans Cedex 9, France
3 Kunming University of Science and Technology, Kunming, 650093, P.R. China
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The paper presents algorithms to recover the optical phase of digitally encoded holograms. Algorithms are based on the use of a numerical spherical reconstructing wave. Proof of the validity of the concept is performed through an experimental off axis digital holographic set-up. Two-color digital holographic reconstruction is also investigated. Application of the color set-up and algorithms concerns the simultaneous two-dimensional deformation measurement of an object submitted to a mechanical loading.
© Owned by the authors, published by EDP Sciences, 2010