RT Journal Article
T1 Robust weighted principal components analysis demodulation algorithm for phase-shifting interferometry
A1 Vargas Balbuena, Javier
A1 Wang, Shuoyu
A1 Gómez Pedrero, José Antonio
A1 Estrada, Julio César
AB We present an asynchronous phase-shifting demodulation approach based on the principal component analysis demodulation method that is robust to typical problems as turbulence, vibrations, and temporal instabilities of the optical setup. The method brings together a two-step and a phase-shifting asynchronous demodulation method to share their benefits while reducing their intrinsic limitations. Thus, the proposed approach is based on a two-fold process. First, the modulating phase is estimated from a two-step demodulation approach. Second, this information is used to compute weights to each phase-shifted pattern of the interferogram sequence, which are used in a novel weighted principal component demodulation approach. The proposed technique has been tested with simulated and real interferograms affected by turbulence and vibrations providing very satisfactory results in challenging cases.
PB The Optical Society Of America
SN 1094-4087
YR 2021
FD 2021-05-14
LK https://hdl.handle.net/20.500.14352/8367
UL https://hdl.handle.net/20.500.14352/8367
LA eng
NO Received: 4 Dec 2020 / Revised: 3 Feb 2021 / Accepted: 10 Feb 2021 / Published: 14 May 2021.© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.Funding. Ministerio de Ciencia, Innovación y Universidades (PID2019-108850RA-I00, Ramón y Cajal 2018 program (RYC2018-024087-I)).
NO Ministerio de Ciencia, Innovación y Universidades (MICIU)
NO Programa Ramón y Cajal
DS Docta Complutense
RD 26 ago 2024