Phase-step retrieval for tunable phase-shifting algorithms

Gastón A. Ayubi, Ignacio Duarte, César D. Perciante, Jorge L. Flores, José A. Ferrari

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

7 Citas (Scopus)

Resumen

Phase-shifting (PS) is a well-known technique for phase retrieval in interferometry, with applications in deflectometry and 3D-profiling, which requires a series of intensity measurements with certain phase-steps. Usually the phase-steps are evenly spaced, and its knowledge is crucial for the phase retrieval. In this work we present a method to extract the phase-step between consecutive interferograms. We test the proposed technique with images corrupted by additive noise. The results were compared with other known methods. We also present experimental results showing the performance of the method when spatial filters are applied to the interferograms and the effect that they have on their relative phase-steps.

Idioma originalInglés
Páginas (desde-hasta)334-342
Número de páginas9
PublicaciónOptics Communications
Volumen405
DOI
EstadoPublicada - 15 dic. 2017

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