SDF-based nonzero order fringe-adjusted joint transform correlator using binary random phase mask

El-Houssine Horache; Mohammad S. Alam; Helment Chye Hwa Loo; Sheue Feng Goh

doi:10.1117/12.557489

26 October 2004 SDF-based nonzero-order fringe-adjusted joint transform correlator using binary random phase mask

El-Houssine Horache, Mohammad S. Alam, Helment Chye Hwa Loo , Sheue Feng Goh

Proceedings Volume 5559, Advanced Signal Processing Algorithms, Architectures, and Implementations XIV; (2004) https://doi.org/10.1117/12.557489
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

To achieve scale and rotation invariant pattern recognition, we implemented synthetic discriminant function (SDF) based reference image in a nonzero order Fringe-adjusted Joint Transform Correlator (FJTC) using binary random phase mask. The binary random phase mask encodes the SDF based reference image before it is introduced in the joint input image. The joint power spectrum is then multiplied by the phase mask to remove the zero-order term and false alarms that may be generated in the correlation plane due to the presence of multiple identical target or non-target objects in the input scene. Detailed analysis for the proposed SDF based nonzero order FJTC using binary random phase mask is presented. Simulation results verify the effectiveness of the proposed technique.

Citation Download Citation

El-Houssine Horache, Mohammad S. Alam, Helment Chye Hwa Loo , and Sheue Feng Goh "SDF-based nonzero-order fringe-adjusted joint transform correlator using binary random phase mask", Proc. SPIE 5559, Advanced Signal Processing Algorithms, Architectures, and Implementations XIV, (26 October 2004); https://doi.org/10.1117/12.557489

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KEYWORDS

Binary data

Image filtering

Optical correlators

Fourier transforms

Joint transforms

Optical filters

Pattern recognition

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