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  • Received: Apr. 24, 2007

    Accepted: --

    Posted: Nov. 14, 2007

    Published Online: Nov. 14, 2007

    The Author Email: Weimin Jin (jhjinwm@163.com)

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    Weimin Jin, Yupei Zhang. Color pattern recognition based on the joint fractional Fourier transform correlator[J]. Chinese Optics Letters, 2007, 5(11): 628

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

Color pattern recognition based on the joint fractional Fourier transform correlator

Weimin Jin* and Yupei Zhang

Author Affiliations

  • Institute of Information Optics, Zhejiang Normal University, Jinhua 321004

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.

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