Multiple polarization encoding for gray image encryption based on liquid crystal exclusive or logic

Han Yen Tu, Mao Ling Chen, Chau Jern Cheng

研究成果: 雜誌貢獻文章

6 引文 斯高帕斯(Scopus)

摘要

This work proposes and demonstrates the feasibility of gray image encryption using multiple polarization encoding, in which the cascaded twisted nematic liquid crystal devices sandwiched between a crossed polarizer pair are used to implement exclusive OR (XOR) logical encryption and decryption. The polarization encoding scheme provides a multichannel XOR logic operation to secure bit-plane images derived from a gray image, according to the adiabatic following properties of twisted nematic liquid crystal devices. Experimental data reveal that the multiple polarization encoding schemes for gray image encryption and decryption are performed with acceptable image quality by selecting appropriate polarization orientation and modulation conditions. Both analytic and experimental results are presented and discussed.

原文英語
頁(從 - 到)308-313
頁數6
期刊Optical Review
13
發行號5
DOIs
出版狀態已發佈 - 2006 九月 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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