Please use this identifier to cite or link to this item:
Title: Phase-shifting algorithms with known and unknown phase shifts: comparison and hybrid
Authors: Chen, Yuchi
Kemao, Qian
Keywords: Engineering::Computer science and engineering
Issue Date: 2022
Source: Chen, Y. & Kemao, Q. (2022). Phase-shifting algorithms with known and unknown phase shifts: comparison and hybrid. Optics Express, 30(5), 8275-8302.
Project: S17-1579-IPP-II 
Journal: Optics Express 
Abstract: The phase-shifting interferometry has been intensively studied for more than half a century, and is still actively investigated and improved for more demanding precision measurement requirements. A proper phase-shifting algorithm (PSA) for phase extraction should consider various error sources including (i) the phase-shift errors, (ii) the intensity harmonics, (iii) the non-uniform phase-shift distributions and (iv) the random additive intensity noise. Consequently, a large pool of PSAs has been developed, including those with known phase shifts (abbreviated as kPSA) and those with unknown phase shifts (abbreviated as uPSA). While numerous evaluation works have been done for the kPSAs, there are very few for the uPSAs, making the overall picture of the PSAs unclear. Specifically, there is a lack of (i) fringe pattern parameters' restriction analysis for the uPSAs and (ii) performance comparison within the uPSAs and between the uPSAs and the kPSAs. Thus, for the first time, we comprehensively evaluated the pre-requisites and performance of four representative uPSAs, the advanced iterative algorithm, the general iterative algorithm (GIA), the algorithm based on the principal component analysis and the algorithm based on VU factorization, and then compare the uPSAs with twelve benchmarking kPSAs. From this comparison, the demand for proper selection of a kPSA, and the restriction and attractive performance of the uPSAs are clearly depicted. Due to the outstanding performance of the GIA, a hybrid kPSA-GIA is proposed to boost the performance of a kPSA and relieve the fringe density restriction of the GIA.
ISSN: 1094-4087
DOI: 10.1364/OE.452583
Rights: © 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

Files in This Item:
File Description SizeFormat 
oe-30-5-8275.pdf5.57 MBAdobe PDFView/Open

Citations 50

Updated on Nov 21, 2022

Web of ScienceTM
Citations 50

Updated on Nov 20, 2022

Page view(s)

Updated on Nov 26, 2022


Updated on Nov 26, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.