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

B.-E. Benkelfat; S. El Wardi; M. Zghal; A. Alfalou

doi:10.1117/12.918892

2 May 2012 2D real-time arithmetic operations using optical coherence properties: image processing applications

B.-E. Benkelfat, S. El Wardi, M. Zghal, A. Alfalou

Proceedings Volume 8397, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VIII; 83970D (2012) https://doi.org/10.1117/12.918892
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

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.

Citation Download Citation

B.-E. Benkelfat, S. El Wardi, M. Zghal, and A. Alfalou "2D real-time arithmetic operations using optical coherence properties: image processing applications", Proc. SPIE 8397, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VIII, 83970D (2 May 2012); https://doi.org/10.1117/12.918892

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