Performance evaluation of photorefractive two-beam coupling joint transform correlator

G. Nehmetallah; P. P. Banerjee; M. Alam; J. Khoury

doi:10.1117/12.2054357

5 May 2014 Performance evaluation of photorefractive two-beam coupling joint transform correlator

G. Nehmetallah, P. P. Banerjee, M. Alam, J. Khoury

Proceedings Volume 9094, Optical Pattern Recognition XXV; 909409 (2014) https://doi.org/10.1117/12.2054357
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

The performance of a novel joint transform correlator (JTC) based on photorefractive (PR) two-beam coupling (TBC) is analyzed by determining the dependence of relevant figures of merit such as the discrimination ratio, the peak-to-correlation plane energy ratio, and the peak-to-noise ratio on the PR gain coefficient and pump-probe beam ratio for a variety of reference and signal images. In this scheme, spatially separated reference and signal images constitute the pump, which transfers energy to a weak probe in a novel image processing setup where the PR polymer serves as the spatial filter in the Fourier plane.

Citation Download Citation

G. Nehmetallah, P. P. Banerjee, M. Alam, and J. Khoury "Performance evaluation of photorefractive two-beam coupling joint transform correlator", Proc. SPIE 9094, Optical Pattern Recognition XXV, 909409 (5 May 2014); https://doi.org/10.1117/12.2054357

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