Role of phase key in the double random phase encoding technique : an error analysis
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|Title:||Role of phase key in the double random phase encoding technique : an error analysis||Authors:||Monaghan, David S.
Naughton, Thomas J.
Sheridan, John T.
|Permanent link:||http://hdl.handle.net/10197/3391||Date:||20-Jul-2008||Abstract:||We perform a numerical analysis of the double random phase encryption–decryption technique to determine how, in the case of both amplitude and phase encoding, the two decryption keys (the image- and Fourier-plane keys) affect the output gray-scale image when they are in error. We perform perfect encryption and imperfect decryption. We introduce errors into the decrypting keys that correspond to the use of random distributions of incorrect pixel values. We quantify the effects that increasing amounts of error in the image-plane key, the Fourier-plane key, and both keys simultaneously have on the decrypted image. Quantization effects are also examined||Funding Details:||Science Foundation Ireland
Irish Research Council for Science, Engineering and Technology
|Type of material:||Journal Article||Publisher:||Optical Society of America||Journal:||Applied Optics||Volume:||47||Issue:||21||Start page:||3808||End page:||3816||Copyright (published version):||2008 Optical Society of America||Subject LCSH:||Numerical analysis
Data encryption (Computer science)
Optical data processing
Fourier transform optics
|DOI:||10.1364/AO.47.003808||Other versions:||http://dx.doi.org/10.1364/AO.47.003808||Language:||en||Status of Item:||Not peer reviewed|
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
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