Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
746871 | Optics and Lasers in Engineering | 2007 | 6 Pages |
Abstract
We present, for the first time to the best of our knowledge, a phase unwrapping method based on an algorithm which makes use of Green's first identity. This method aims at recovering the correct phase information encoded in a fringe pattern after digital holography (DH) numerical processing. DH provides a quantitative measurement of the three-dimensional surface profile of objects. The information about the profile can be obtained in principle from the phase-map. However, the measured phase-map provides the actual phase values wrapped mod.2π so that an unwrapping process is required in order to reconstruct the object profile.
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Engineering
Electrical and Electronic Engineering
Authors
L. Aiello, D. Riccio, P. Ferraro, S. Grilli, L. Sansone, G. Coppola, S. De Nicola, A. Finizio,