Journal ArticleDOI
Encrypting three-dimensional information with digital holography
Enrique Tajahuerce,Bahram Javidi +1 more
TLDR
A method for optical encryption of three-dimensional (3D) information by use of digital holography using a phase-shifting interferometer and an intensity-recording device.Abstract:
A method for optical encryption of three-dimensional (3D) information by use of digital holography is presented. A phase-shifting interferometer records the phase and amplitude information generated by a 3D object at a plane located in the Fresnel diffraction region with an intensity-recording device. Encryption is performed optically by use of the Fresnel diffraction pattern of a random phase code. Images of the 3D object with different perspectives and focused at different planes can be generated digital or optically after decryption with the proper key. Experimental results are presented.read more
Citations
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Journal ArticleDOI
Accumulation Encoding Technique Based on Double Random Phase Encryption for Transmission of Multiple Images
TL;DR: Simulation results verify that the DRPE-based accumulation encoding scheme for multiple images is powerful in terms of data security.
Journal ArticleDOI
Encryption of 3D Point Cloud Object with Deformed Fringe
Xin Yang,Hongbo Zhang +1 more
TL;DR: Results indicated that the proposed method is able to accurately decrypt the coordinates and gray image of the 3D object and is also robust against occlusion attacks.
Proceedings ArticleDOI
Holographic image processing of three-dimensional objects
Jonathan Maycock,Conor P. Mc Elhinney,Alison E. Shortt,Thomas J. Naughton,John McDonald,Brian M. Hennelly,Unnikrishnan Gopinathan,David S. Monaghan,John T. Sheridan,Bahram Javidi +9 more
TL;DR: Recent advances made in the area of holographic image processing of three-dimensional (3D) objects are looked at in the areas of encryption, compression, noise removal, and 3D shape extraction.
Journal ArticleDOI
Choice of optical system is critical for the security of double random phase encryption systems
Inbarasan Muniraj,Changliang Guo,Ra'ed Malallah,Ra'ed Malallah,Derek Cassidy,Liang Zhao,James P. Ryle,John J. Healy,John T. Sheridan +8 more
TL;DR: The results show that the LCT-based DRPE has an excellent avalanche and bit independence characteristics compared to the conventional Fourier and Fresnel-based encryption systems.
Optical Techniques for Information Security Encryption of information, taking advantage of the many degrees of freedom available in optical waveforms, can be used to safely transmit, protect, store and authenticate data.
TL;DR: An overview of the potential of free space optical technology in information security, encryption, and authentication is presented and optical authentication techniques applied to ID tags with visible and near infrared imaging are reviewed.
References
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Ichirou Yamaguchi,Tong Zhang +1 more
TL;DR: A new method is proposed in which the distribution of complex amplitude at a plane is measured by phase-shifting interferometry and then Fresnel transformed by a digital computer, which can reconstruct an arbitrary cross section of a three-dimensional object with higher image quality and a wider viewing angle than from conventional digital holography using an off-axis configuration.
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