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    Cost Function Statistical Analysis in Double Random Phase Encoding


    Monaghan, David S. and Gopinathan, Unnikrishnan and Situ, Guohai and Naughton, Thomas J. and Sheridan, John T. (2008) Cost Function Statistical Analysis in Double Random Phase Encoding. Proceedings of SPIE, 7072. 70720Z-1-70720Z-8. ISSN 0277-786X

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    Abstract

    We examine the Amplitude-Encoding (AE) case of the Double Random Phase Encoding (DRPE) technique. A cost function is the function we use to evaluate an attempted decryption with our original input image. For systems with a relatively small key-space we can evaluate the output of every key to get an overall idea of the spread of these keys in key-space. However for larger systems this is not practical. Based on a normalised root mean squared cost function we wish to identify expressions for the mean and variance of the output (decrypted) intensity for a sample set of keys in a large system (256x256 pixels).

    Item Type: Article
    Additional Information: Cite as: David S. Monaghan ; Unnikrishnan Gopinathan ; Guohai Situ ; Thomas J. Naughton and John T. Sheridan "Cost function statistical analysis in double random phase encoding", Proc. SPIE 7072, Optics and Photonics for Information Processing II, 70720Z (September 03, 2008); doi:10.1117/12.798202; http://dx.doi.org/10.1117
    Keywords: Optical processing; Digital image processing; Fourier optics; Numerical approximation and analysis;
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Item ID: 8452
    Identification Number: https://doi.org/10.1117/12.798202
    Depositing User: Thomas Naughton
    Date Deposited: 12 Jul 2017 15:54
    Journal or Publication Title: Proceedings of SPIE
    Publisher: SPIE
    Refereed: Yes
    Funders: Enterprise Ireland, Science Foundation Ireland, Irish Research Council for Science Engineering and Technology (IRCSET), International Society for Optical Engineering SPIE
    URI:

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