TY - GEN
T1 - Improved performance of joint transform correlators in the presence of colored noise
AU - Inbar, Hanni
AU - Marom, Emanuel
AU - Konforti, Naim
PY - 1993
Y1 - 1993
N2 - Joint transform correlator (JTC), using spatial light modulators (SLMs) for the display of the input plane and the joint transform (JT) plane, provides real-time correlation capabilities for optical pattern recognition. Display of the JT plane on a binary SLM, requires binarization of the joint power spectrum function. Means for improving the JTC performance are presented, where the joint power spectrum function is modified prior to an error-diffusion binarization stage, when colored (non-white) noise is present in the input scene. Mathematical analysis, computer simulations and experimental results are presented.
AB - Joint transform correlator (JTC), using spatial light modulators (SLMs) for the display of the input plane and the joint transform (JT) plane, provides real-time correlation capabilities for optical pattern recognition. Display of the JT plane on a binary SLM, requires binarization of the joint power spectrum function. Means for improving the JTC performance are presented, where the joint power spectrum function is modified prior to an error-diffusion binarization stage, when colored (non-white) noise is present in the input scene. Mathematical analysis, computer simulations and experimental results are presented.
UR - http://www.scopus.com/inward/record.url?scp=0027887744&partnerID=8YFLogxK
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AN - SCOPUS:0027887744
SN - 0819412309
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 379
EP - 380
BT - Optics as a Key to High Technology
A2 - Akos, Gy.
A2 - Lippenyi, T.
A2 - Lupkovics, G.
A2 - Podmaniczky, A.
PB - Publ by Society of Photo-Optical Instrumentation Engineers
T2 - Proceedings of the 16th Congress of the International Commission for Optics
Y2 - 9 August 1993 through 13 August 1993
ER -