Open AccessBlind self-calibrating algorithm for phase-shifting interferometry by use of cross-bispectrum
Author(s) -
Hongwei Guo
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.007807
Subject(s) - bispectrum , interferometry , phase (matter) , optics , amplitude , phase retrieval , physics , function (biology) , nonlinear system , algorithm , computer science , fourier transform , spectral density , telecommunications , quantum mechanics , evolutionary biology , biology
A blind self-calibrating algorithm for phase-shifting interferometry is presented, with which the nonlinear interaction introduced by phase shift errors, between the reconstructed phases and the reconstructed amplitudes of the reference wave, is measured with cross-bispectrum. Minimizing an objective function based on this cross-bispectrum allows accurately estimating the true phase shifts from only three interferograms in the absence of any supplementary assumptions and knowledge about these interferograms.