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請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/18205
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| 題名: | Optical Security Using a Random Binary Phase Code in Volume Holograms |
| 作者: | Wang, Bo;Su, Wei-Chia;Sun, Ching-Cherngr;Chang, Jung-Yang |
| 貢獻者: | 光電科技研究所 |
| 關鍵詞: | Volume holography;Volume holographic storage;Optical security |
| 日期: | 2004-09
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| 上傳時間: | 2014-04-01T03:56:45Z
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| 出版者: | Society of Photo-Optical Instrumentation Engineers |
| 摘要: | We propose a novel method for optical security by using a randomly selected binary phase code. The phase code is recorded with holographic volume gratings, and the recording material can be regarded as an optical lock, while the original phase code acts as the key. When an arbitrary phase code is used for decryption, the decryption probability is less than 10–10 when the phase code contains only five rows. The decryption probability decreases dramatically as the row number of the code or the threshold value increases. Furthermore, the security system performs good tolerance for data loss of the key. Both the theory and experiment are demonstrated. |
| 關聯: | Optical Engineering, 43(9): 2048-2052 |
| 顯示於類別: | [光電科技研究所] 期刊論文
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