Phase-step retrieval for tunable phase-shifting algorithms

被引：5

作者：

Ayubi, Gaston A. ^{[1
]}

Duarte, Ignacio ^{[1
]}

Perciante, Cesar D. ^{[2
]}

Flores, Jorge L. ^{[3
]}

Ferrari, Jose A. ^{[1
]}

机构：

[1] UdelaR, Fac Ingn, Inst Fis, J Herrera y Reissig 565, Montevideo, Uruguay

[2] Univ Catolica Uruguay, Fac Ingn & Tecnol, Dept Ciencias Nat, Av 8 Octubre 2738, Montevideo, Uruguay

[3] Univ Guadalajara, Elect Engn Dept, Av Revoluc 1500, Guadalajara 44430, Jalisco, Mexico

来源：

OPTICS COMMUNICATIONS | 2017年 / 405卷

关键词：

Phase retrieval; Fringe analysis; Phase measurements; Interferometry; WAVE-FRONT; INTERFEROMETRY; EXTRACTION;

D O I：

10.1016/j.optcom.2017.08.045

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：334 / 342

页数：9

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