Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/87486
Title: Precise phase retrieval under harsh conditions by constructing new connected interferograms
Authors: Deng, Jian
Wu, Dan
Wang, Kai
Vargas, Javier
Keywords: Interferograms
Information Retrieval
DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2016
Source: Deng, J., Wu, D., Wang, K., & Vargas, J. (2016). Precise phase retrieval under harsh conditions by constructing new connected interferograms. Scientific Reports, 6, 24416-. doi:10.1038/srep24416
Series/Report no.: Scientific Reports
Abstract: To date, no phase-shifting method can accurately retrieve the phase map from a small set of noisy interferograms with low phase-shifts. In this Letter, we develop a novel approach to resolve this limitation under such harsh conditions. The proposed new method is based on constructing a set of connected interferograms by means of simple subtraction and addition operations, in which all the subset of interferograms have the same phase-shift interval of π/2. According to this characteristic, this set of connected interferograms can be processed with conventional phase retrieval methods as PCA or AIA obtaining accurate results. The reduction in the RMS errors after using our method reaches as high as 93.7% and 89.3% respectively comparing with conventional PCA and AIA methods under harsh conditions. Both simulation and experiment results demonstrate that the new proposed method provides an effective way, with high precision and robustness against noise, for phase retrieval.
URI: https://hdl.handle.net/10356/87486
http://hdl.handle.net/10220/46723
DOI: http://dx.doi.org/10.1038/srep24416
Rights: © 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Fulltext Permission: open
Fulltext Availability: With Fulltext
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