Optical voice encryption based on digital holography
Optical voice encryption based on digital holography
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DOI：
10.1364/ol.42.004619
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发表时间：
2017-11-15
期刊：
影响因子：
3.6
通讯作者：
Matoba, Osamu
中科院分区：
文献类型：
--
作者：
Rajput, Sudheesh K.;Matoba, Osamu
提出了一种基于数字全息的光学语音加密方案。采用离轴DH以通过获得由于声波传播而在物波中出现的相位延迟来获取语音信息。使用光学图像加密对包括语音信息的所获取的全息图进行加密。在参数正确的情况下，DH重建和解密可以恢复原始语音。该方案具有将人的声音记录在全息图中并直接加密的能力。这些方面使该方案适用于其他安全应用，并有助于使用语音作为一个潜在的安全工具。我们目前的实验和部分模拟结果。(C)2017美国光学学会
We propose an optical voice encryption scheme based on digital holography (DH). An off-axis DH is employed to acquire voice information by obtaining phase retardation occurring in the object wave due to sound wave propagation. The acquired hologram, including voice information, is encrypted using optical image encryption. The DH reconstruction and decryption with all the correct parameters can retrieve an original voice. The scheme has the capability to record the human voice in holograms and encrypt it directly. These aspects make the scheme suitable for other security applications and help to use the voice as a potential security tool. We present experimental and some part of simulation results. (C) 2017 Optical Society of America