Reconstruction of noisy images via stochastic resonance in nematic liquid crystals

We employ nematic liquid crystals as the nonlinear medium to recover noisy images via stochastic resonance, in which nonlinear coupling allows signals to grow at the expense of noise. The process is theoretically analyzed and the cross-correlation is numerically calculated. It is found that the qual...

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Detalles Bibliográficos
Autores principales: Feng, Xingpan, Liu, Hongjun, Huang, Nan, Wang, Zhaolu, Zhang, Yongbin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408515/
https://www.ncbi.nlm.nih.gov/pubmed/30850690
http://dx.doi.org/10.1038/s41598-019-40676-6
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author Feng, Xingpan
Liu, Hongjun
Huang, Nan
Wang, Zhaolu
Zhang, Yongbin
author_facet Feng, Xingpan
Liu, Hongjun
Huang, Nan
Wang, Zhaolu
Zhang, Yongbin
author_sort Feng, Xingpan
collection PubMed
description We employ nematic liquid crystals as the nonlinear medium to recover noisy images via stochastic resonance, in which nonlinear coupling allows signals to grow at the expense of noise. The process is theoretically analyzed and the cross-correlation is numerically calculated. It is found that the quality of output images is affected by the input noise intensity, the applied voltage and the correlation length of noise light. Noise-hidden images can be effectively recovered by optimizing these parameters. The results suggest that nematic liquid crystals can be used for reconstruction of noisy images via stochastic resonance based on modulation instability with molecule reorientation nonlinearity.
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spelling pubmed-64085152019-03-12 Reconstruction of noisy images via stochastic resonance in nematic liquid crystals Feng, Xingpan Liu, Hongjun Huang, Nan Wang, Zhaolu Zhang, Yongbin Sci Rep Article We employ nematic liquid crystals as the nonlinear medium to recover noisy images via stochastic resonance, in which nonlinear coupling allows signals to grow at the expense of noise. The process is theoretically analyzed and the cross-correlation is numerically calculated. It is found that the quality of output images is affected by the input noise intensity, the applied voltage and the correlation length of noise light. Noise-hidden images can be effectively recovered by optimizing these parameters. The results suggest that nematic liquid crystals can be used for reconstruction of noisy images via stochastic resonance based on modulation instability with molecule reorientation nonlinearity. Nature Publishing Group UK 2019-03-08 /pmc/articles/PMC6408515/ /pubmed/30850690 http://dx.doi.org/10.1038/s41598-019-40676-6 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Feng, Xingpan
Liu, Hongjun
Huang, Nan
Wang, Zhaolu
Zhang, Yongbin
Reconstruction of noisy images via stochastic resonance in nematic liquid crystals
title Reconstruction of noisy images via stochastic resonance in nematic liquid crystals
title_full Reconstruction of noisy images via stochastic resonance in nematic liquid crystals
title_fullStr Reconstruction of noisy images via stochastic resonance in nematic liquid crystals
title_full_unstemmed Reconstruction of noisy images via stochastic resonance in nematic liquid crystals
title_short Reconstruction of noisy images via stochastic resonance in nematic liquid crystals
title_sort reconstruction of noisy images via stochastic resonance in nematic liquid crystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6408515/
https://www.ncbi.nlm.nih.gov/pubmed/30850690
http://dx.doi.org/10.1038/s41598-019-40676-6
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AT wangzhaolu reconstructionofnoisyimagesviastochasticresonanceinnematicliquidcrystals
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