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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 7 — Jul. 1, 2014
  • pp: 1547–1551

Pattern recognition based on the correlated intensity fluctuations of thermal light

Yi-Kuo Liu, Ying Wang, De-Zhong Cao, and Su-Heng Zhang  »View Author Affiliations


JOSA A, Vol. 31, Issue 7, pp. 1547-1551 (2014)
http://dx.doi.org/10.1364/JOSAA.31.001547


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Abstract

Here we present a pattern recognition scheme based on the intensity correlation of thermal light. We prove theoretically that under spatially incoherent illumination the matched filtering technique can be realized in the ghost imaging field. Using the matched filtering technique, it is possible to distinguish an object from a preestablished set of objects through their ghost images, which are extracted by means of intensity correlation measurement. According to the pattern recognition scheme, we present a numerical simulation in which we can easily identify the character inserted into the object arm from a set of two characters through the position of the autocorrelation peak. This pattern recognition scheme opens up the possibility of performing coherent optical processing under spatially incoherent illumination.

© 2014 Optical Society of America

OCIS Codes
(070.5010) Fourier optics and signal processing : Pattern recognition
(070.6110) Fourier optics and signal processing : Spatial filtering
(110.1650) Imaging systems : Coherence imaging

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: March 27, 2014
Revised Manuscript: May 31, 2014
Manuscript Accepted: May 31, 2014
Published: June 20, 2014

Citation
Yi-Kuo Liu, Ying Wang, De-Zhong Cao, and Su-Heng Zhang, "Pattern recognition based on the correlated intensity fluctuations of thermal light," J. Opt. Soc. Am. A 31, 1547-1551 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-7-1547


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