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Proceedings Paper

2D real-time arithmetic operations using optical coherence properties: image processing applications
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Paper Abstract

We report for the first time the use of the well-known coherence modulation of light in two-dimensional arithmetic operations. This method, which allows several signals to be multiplexed on a single light beam, permits parallel real-time all optical subtractions and additions. In the context of an increased need of security, a major application of our multiplexed approach could be the optical encryption of images and multi-modalities techniques in biometric domain. The single-channel optical architecture, which allows carrying out single and multiple arithmetic operations, is described and more results are presented to show the effectiveness of our technique. We have evaluated the performance of the processor in terms of noise level as a function of the continuous optical path-difference ratio.

Paper Details

Date Published: 2 May 2012
PDF: 7 pages
Proc. SPIE 8397, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VIII, 83970D (2 May 2012); doi: 10.1117/12.918892
Show Author Affiliations
B.-E. Benkelfat, CNRS, Institut Telecom - Telecom SudParis (France)
S. El Wardi, CNRS, Institut Telecom - Telecom SudParis (France)
M. Zghal, Univ. of Carthage (Tunisia)
A. Alfalou, ISEN Brest (France)

Published in SPIE Proceedings Vol. 8397:
Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VIII
Michael J. Hayduk; Peter J. Delfyett Jr.; Andrew R. Pirich; Eric Donkor, Editor(s)

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