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http://hdl.handle.net/2445/118838
Title: | Validation of optical codes based on 3D nanostructures |
Author: | Carnicer González, Arturo Javidi, Bahram |
Keywords: | Seguretat informàtica Visualització tridimensional Xifratge (Informàtica) Processament òptic de dades Computer security Three-dimensional display systems Data encryption (Computer science) Optical data processing |
Issue Date: | 10-May-2017 |
Publisher: | Society of Photo-Optical Instrumentation Engineers (SPIE) |
Abstract: | Image information encoding using random phase masks produce speckle-like noise distributions when the sample is propagated in the Fresnel domain. As a result, information cannot be accessed by simple visual inspection. Phase masks can be easily implemented in practice by attaching cello-tape to the plain-text message. Conventional 2D-phase masks can be generalized to 3D by combining glass and diffusers resulting in a more complex, physical unclonable function. In this communication, we model the behavior of a 3D phase mask using a simple approach: light is propagated trough glass using the angular spectrum of plane waves whereas the diffusor is described as a random phase mask and a blurring effect on the amplitude of the propagated wave. Using different designs for the 3D phase mask and multiple samples, we demonstrate that classification is possible using the k-nearest neighbors and random forests machine learning algorithms. |
Note: | Reproducció del document publicat a: https://doi.org/10.1117/12.2262417 |
It is part of: | Proceedings of SPIE, 2017, vol. 10219, p. 102190M-1-102190M-6 |
URI: | http://hdl.handle.net/2445/118838 |
Related resource: | https://doi.org/10.1117/12.2262417 |
ISSN: | 0277-786X |
Appears in Collections: | Articles publicats en revistes (Física Aplicada) |
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