Image hiding in time-averaged deformable moiré gratings

A new image hiding technique based on time-averaged moiré fringes is proposed in this paper. The secret image is embedded into a single cover image which is constructed as a deformable stochastic moiré grating. The secret image is leaked in the form of a time-averaged fringe when the cover image is...

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Bibliographic Details
Published in:Journal of Optics 2014-02, Vol.16 (2), p.1-8
Main Authors: Palivonaite, R, Aleksa, A, Paunksnis, A, Gelzinis, A, Ragulskis, M
Format: Article
Language:English
Subjects:
Bessel functions
Deformation
Diffraction gratings
Formability
geometric moiré
Gratings (spectra)
Law
Moire fringes
Optical control
time-averaged fringe
visual cryptography
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Summary:A new image hiding technique based on time-averaged moiré fringes is proposed in this paper. The secret image is embedded into a single cover image which is constructed as a deformable stochastic moiré grating. The secret image is leaked in the form of a time-averaged fringe when the cover image is deformed according to a predetermined periodic law of motion. The proposed image hiding approach opens new possibilities for the optical control of vibrating deformable structures.
ISSN:2040-8978
2040-8986
1464-4258
DOI:10.1088/2040-8978/16/2/025401