Holographic Encryption of Color Video Stream with 4k Resolution Using Phase Liquid Crystal Light Modulators

This study examines the use of optical encoding to prevent unauthorized access to various categories of information (including video) during operational transmission. Experimentally implemented holographic coding in spatially incoherent radiation of a 4K color video stream with digital input of info...

Full description

Saved in:
Bibliographic Details
Published in:Measurement techniques 2023-09, Vol.66 (6), p.392-397
Main Authors: Rymov, D. A., Shifrina, A. V., Cheremkhin, P. A., Rodin, V. G., Krasnov, V. V.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Characterization and Evaluation of Materials
Coding
Color
Communications systems
Decoding
High resolution
Holograms
Holography
Image registration
Light modulators
Liquid crystals
Measurement Science and Instrumentation
Numerical methods
Opticophysical Measurements
Physical Chemistry
Physics
Physics and Astronomy
Regularization
Streaming media
Video communication
Video data
Video transmission
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study examines the use of optical encoding to prevent unauthorized access to various categories of information (including video) during operational transmission. Experimentally implemented holographic coding in spatially incoherent radiation of a 4K color video stream with digital input of information and dynamically changing coding elements-holograms was used to improve the quality of video stream coding and ensure high throughput of the coding system. High-resolution liquid-crystal spatial-temporal light modulators were used to input encoded video information and display holograms. The encoding method is based on registering an optical convolution of the input scene image with the encoding response of the hologram. In this case, individual color channels of each frame of the video stream are encoded in turn. Numerical methods of inverse filtering and regularization were used for decoding. The results of the present studies will be useful in creating a new generation of secure high-resolution video communication systems.
ISSN:0543-1972
1573-8906
DOI:10.1007/s11018-023-02239-0