کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
851550 | 909324 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical multi-image encryption based on frequency shift
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optical multi-image encryption based on frequency shift Optical multi-image encryption based on frequency shift](/preview/png/851550.png)
چکیده انگلیسی
We present a novel multi-image encryption and decryption algorithm based on Fourier transform and fractional Fourier transforms. Lower frequency parts of the original images are selected, frequency shifted and encrypted by using double phase encoding in fractional Fourier domains. Multiple images are encrypted together into a single one. A simple optical setup is given to implement the proposed algorithm. This scheme has features of enhancement in decryption accuracy and high optical efficiency. Numerical results have been given to verify the validity and efficiency of the proposed scheme.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 11, June 2011, Pages 1010–1013
Journal: Optik - International Journal for Light and Electron Optics - Volume 122, Issue 11, June 2011, Pages 1010–1013
نویسندگان
Zhengjun Liu, Yan Zhang, Haifa Zhao, Muhammad Ashfaq Ahmad, Shutian Liu,