M-ary pseudorandom phase masks for spatially efficient phase encoded reference JTC

A. Alsamman

doi:10.1117/12.781829

17 March 2008 M-ary pseudorandom phase masks for spatially efficient phase encoded reference JTC

A. Alsamman

Proceedings Volume 6977, Optical Pattern Recognition XIX; 697708 (2008) https://doi.org/10.1117/12.781829
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

In this paper we propose the use of discrete pseudorandom phase mask for a spatially efficient phase encoded JTC. In the proposed JTC system the reference image is phase encoded using a pseudorandom phase mask to eliminate extraneous peaks cluttering or overshadowing the correlation output. The phase encoding scheme also eliminates the need for a spatial separation in the joint input image resulting in the full use of the SLM. An optoelectronic architecture of the proposed system is presented. To relax the need for a phase-only SLM with a high phase resolution we proposed the use of discrete pentary pseudorandom phase mask.

Citation Download Citation

A. Alsamman "M-ary pseudorandom phase masks for spatially efficient phase encoded reference JTC", Proc. SPIE 6977, Optical Pattern Recognition XIX, 697708 (17 March 2008); https://doi.org/10.1117/12.781829

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