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Deep Optical Cryptography: Joint Encryption and LC Lens Key Generation for Secure Displays.

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Title: Deep Optical Cryptography: Joint Encryption and LC Lens Key Generation for Secure Displays.
Authors: Chen, Ting‐Yu1 (AUTHOR), Wu, Jia‐Lun1 (AUTHOR), Tung, Shao‐En1 (AUTHOR), Chen, Hung‐Shan2 (AUTHOR), Hung, Yi2 (AUTHOR), Chen, Sung‐Nan2 (AUTHOR), Tien, Chung‐Hao1 (AUTHOR) chtien@nycu.edu.tw
Source: Journal of the Society for Information Display. May2026, Vol. 34 Issue 5, p517-526. 10p.
Subjects: Visual cryptography, Spatial light modulators, Display systems, Computer security, Electronic authentication, Data encryption
Abstract: We present a learning‐based visual cryptography system that performs computational encryption and distance‐separated optical decryption using a liquid crystal (LC) modulator. The model jointly learns a ciphertext image and an LC‐based optical key such that their optical transmittance modulation recovers the plaintext at a designated capture distance. Decryption succeeds only for the correctly matched ciphertext–key pair, whereas mismatched keys produce visually uninformative outputs. We further address practical misalignment by incorporating shift‐aware training and a patch encryption strategy to enhance lateral (X–Y) shift tolerance. Quantitative evaluation using YOLO‐based digit recognition metrics and MS‐SSIM demonstrates improved robustness under spatial displacement, with experimental results consistent with simulation. These results validate a device‐bound, physically realizable visual cryptography framework that is promising for secure display, authentication, and anticounterfeiting applications. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the Society for Information Display is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
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DbLabel: Engineering Source
An: 194048052
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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IllustrationInfo
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  Data: Deep Optical Cryptography: Joint Encryption and LC Lens Key Generation for Secure Displays.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Ting‐Yu%22">Chen, Ting‐Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Jia‐Lun%22">Wu, Jia‐Lun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tung%2C+Shao‐En%22">Tung, Shao‐En</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Hung‐Shan%22">Chen, Hung‐Shan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hung%2C+Yi%22">Hung, Yi</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Sung‐Nan%22">Chen, Sung‐Nan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tien%2C+Chung‐Hao%22">Tien, Chung‐Hao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chtien@nycu.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Society+for+Information+Display%22">Journal of the Society for Information Display</searchLink>. May2026, Vol. 34 Issue 5, p517-526. 10p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Visual+cryptography%22">Visual cryptography</searchLink><br /><searchLink fieldCode="DE" term="%22Spatial+light+modulators%22">Spatial light modulators</searchLink><br /><searchLink fieldCode="DE" term="%22Display+systems%22">Display systems</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+security%22">Computer security</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+authentication%22">Electronic authentication</searchLink><br /><searchLink fieldCode="DE" term="%22Data+encryption%22">Data encryption</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: We present a learning‐based visual cryptography system that performs computational encryption and distance‐separated optical decryption using a liquid crystal (LC) modulator. The model jointly learns a ciphertext image and an LC‐based optical key such that their optical transmittance modulation recovers the plaintext at a designated capture distance. Decryption succeeds only for the correctly matched ciphertext–key pair, whereas mismatched keys produce visually uninformative outputs. We further address practical misalignment by incorporating shift‐aware training and a patch encryption strategy to enhance lateral (X–Y) shift tolerance. Quantitative evaluation using YOLO‐based digit recognition metrics and MS‐SSIM demonstrates improved robustness under spatial displacement, with experimental results consistent with simulation. These results validate a device‐bound, physically realizable visual cryptography framework that is promising for secure display, authentication, and anticounterfeiting applications. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of the Society for Information Display is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=194048052
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1002/jsid.70075
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 517
    Subjects:
      – SubjectFull: Visual cryptography
        Type: general
      – SubjectFull: Spatial light modulators
        Type: general
      – SubjectFull: Display systems
        Type: general
      – SubjectFull: Computer security
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      – SubjectFull: Electronic authentication
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      – SubjectFull: Data encryption
        Type: general
    Titles:
      – TitleFull: Deep Optical Cryptography: Joint Encryption and LC Lens Key Generation for Secure Displays.
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            NameFull: Chen, Ting‐Yu
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            NameFull: Wu, Jia‐Lun
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            NameFull: Tung, Shao‐En
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            NameFull: Chen, Hung‐Shan
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            NameFull: Hung, Yi
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            NameFull: Chen, Sung‐Nan
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            NameFull: Tien, Chung‐Hao
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 34
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