Improved performance of joint transform correlators in the presence of colored noise

Hanni Inbar, Emanuel Marom, Naim Konforti

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationOptics as a Key to High Technology
EditorsGy. Akos, T. Lippenyi, G. Lupkovics, A. Podmaniczky
PublisherPubl by Society of Photo-Optical Instrumentation Engineers
Pages379-380
Number of pages2
Editionpt 1
ISBN (Print)0819412309
StatePublished - 1993
EventProceedings of the 16th Congress of the International Commission for Optics - Budapest, Hung
Duration: 9 Aug 199313 Aug 1993

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Numberpt 1
Volume1983
ISSN (Print)0277-786X

Conference

ConferenceProceedings of the 16th Congress of the International Commission for Optics
CityBudapest, Hung
Period9/08/9313/08/93

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