Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array

Nematic liquid‐crystal microlens arrays (LC‐MLAs) often exhibit chromatic aberration and low resolution, severely compromising their optical imaging quality. This study proposes an achromatic and resolution enhancement light field (ARELF) deep neural network (DNN) to address these issues. The traini...

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Main Authors: Hui Li, Tian Li, Si Chen, Yuntao Wu
Format: Article
Language:English
Published: Wiley-VCH 2023-11-01
Series:Advanced Photonics Research
Subjects:
Online Access:https://doi.org/10.1002/adpr.202300154
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author Hui Li
Tian Li
Si Chen
Yuntao Wu
author_facet Hui Li
Tian Li
Si Chen
Yuntao Wu
author_sort Hui Li
collection DOAJ
description Nematic liquid‐crystal microlens arrays (LC‐MLAs) often exhibit chromatic aberration and low resolution, severely compromising their optical imaging quality. This study proposes an achromatic and resolution enhancement light field (ARELF) deep neural network (DNN) to address these issues. The training set is constructed by incorporating LC‐MLA characteristics’ degradation, retrofitting the vimeo90k dataset. The network's hidden layer is trained to learn about chromatic aberration and low resolution of LC‐MLA while extracting imaging features and fusing the information of complementary features of a light field under varying voltages. The loss function includes both chromatic aberration and overall resolution. The light field images of ZnO LC‐MLA under seven consecutive voltages are used as input to test the proposed DNN model. After experimental verification, the proposed model effectively eliminates chromatic aberration while enhancing the spatial and temporal resolution of LC‐MLA. This novel network can be utilized to optimize the design process of LC‐MLA and significantly improve its imaging performance.
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spelling doaj.art-ffb29c100183453cadf65b94cc6a53522023-11-11T03:09:02ZengWiley-VCHAdvanced Photonics Research2699-92932023-11-01411n/an/a10.1002/adpr.202300154Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens ArrayHui Li0Tian Li1Si Chen2Yuntao Wu3School of Computer Science and Engineering Wuhan Institute of Technology Wuhan 430205 ChinaSchool of Computer Science and Engineering Wuhan Institute of Technology Wuhan 430205 ChinaSchool of Computer Science and Engineering Wuhan Institute of Technology Wuhan 430205 ChinaSchool of Computer Science and Engineering Wuhan Institute of Technology Wuhan 430205 ChinaNematic liquid‐crystal microlens arrays (LC‐MLAs) often exhibit chromatic aberration and low resolution, severely compromising their optical imaging quality. This study proposes an achromatic and resolution enhancement light field (ARELF) deep neural network (DNN) to address these issues. The training set is constructed by incorporating LC‐MLA characteristics’ degradation, retrofitting the vimeo90k dataset. The network's hidden layer is trained to learn about chromatic aberration and low resolution of LC‐MLA while extracting imaging features and fusing the information of complementary features of a light field under varying voltages. The loss function includes both chromatic aberration and overall resolution. The light field images of ZnO LC‐MLA under seven consecutive voltages are used as input to test the proposed DNN model. After experimental verification, the proposed model effectively eliminates chromatic aberration while enhancing the spatial and temporal resolution of LC‐MLA. This novel network can be utilized to optimize the design process of LC‐MLA and significantly improve its imaging performance.https://doi.org/10.1002/adpr.202300154achromaticdeep neural networkslight fieldsliquid‐crystal microlens arraysresolution enhancement
spellingShingle Hui Li
Tian Li
Si Chen
Yuntao Wu
Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array
Advanced Photonics Research
achromatic
deep neural networks
light fields
liquid‐crystal microlens arrays
resolution enhancement
title Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array
title_full Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array
title_fullStr Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array
title_full_unstemmed Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array
title_short Achromatic and Resolution Enhancement Light Field Deep Neural Network for ZnO Nematic Liquid Crystal Microlens Array
title_sort achromatic and resolution enhancement light field deep neural network for zno nematic liquid crystal microlens array
topic achromatic
deep neural networks
light fields
liquid‐crystal microlens arrays
resolution enhancement
url https://doi.org/10.1002/adpr.202300154
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