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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 5, Iss. 11 — Nov. 10, 2007
  • pp: 628–631

Color pattern recognition based on the joint fractional Fourier transform correlator

Weimin Jin and Yupei Zhang  »View Author Affiliations


Chinese Optics Letters, Vol. 5, Issue 11, pp. 628-631 (2007)


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Abstract

A new system of multi-channel single-output joint fractional Fourier transform correlator (JFRTC) for color pattern recognition is proposed based on the conventional system of multi-channel single-output joint transform correlator (JTC). The theoretical analysis and optical experiments are performed. With this method, one can obtain three correlation peaks at the output plane which show a pair of desired cross-correlation peaks and one auto-correlation peak. In comparison, the conventional system leads to more correlation peaks playing a noise role in color pattern recognition.

© 2007 Chinese Optics Letters

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.4550) Fourier optics and signal processing : Correlators
(070.5010) Fourier optics and signal processing : Pattern recognition

Citation
Weimin Jin and Yupei Zhang, "Color pattern recognition based on the joint fractional Fourier transform correlator," Chin. Opt. Lett. 5, 628-631 (2007)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-5-11-628

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