Performance comparison of photorefractive two-beam coupling correlator with optimal filter based correlators

Jed Khoury, Mohammad S. Alam, Partha P. Banerjee, Georges T. Nehmetallah, William M. Durant, Daniel M. Martin, John Donoghue, N. Peyghambarian, M. Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


The photorefractive joint transform correlator (JTC) combines two features. The first is embedded semi-adaptive optimality which weighs the correlation against clutter and noise in the input and the second is the intrinsic dynamic range compression nonlinearity which improves several metrics simultaneously without metric tradeoff. The performance of this two-beam coupling joint transform correlator scheme is evaluated against several other well-known correlation filters that have been developed during the last three decades. The result shows that the two-beam coupling joint transform scheme is a very robust correlator with respect to standard evaluation metrics for different sets of data.

Original languageEnglish (US)
Title of host publicationOptical Pattern Recognition XXV
ISBN (Print)9781628410310
StatePublished - 2014
EventOptical Pattern Recognition XXV - Baltimore, MD, United States
Duration: May 6 2014May 7 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherOptical Pattern Recognition XXV
Country/TerritoryUnited States
CityBaltimore, MD


  • Fourier transform
  • Pattern recognition
  • SAR imagery
  • fringe-adjusted joint transform correlator
  • matched filter
  • photorefractive material
  • two-beam coupling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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