Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Korean Alphabets Recognition Using the Modified CGH Multiplexed Matched Filter

변조된 CGH 다중 정합 필터를 사용한 한글 자모 인식

  • Jeong, Jae Woo (Dept. of Photonics System Section ETRI) ;
  • Kim, Hong Man (Dept. of Photonics System Section ETRI) ;
  • Lee, Yong Tag (Dept. of Photonics System Section ETRI) ;
  • Kang, Min Ho (Dept. of Photonics System Section ETRI)
  • 정재우 (한국전자통신연구소 광통신시스템연구실) ;
  • 김홍만 (한국전자통신연구소 광통신시스템연구실) ;
  • 이용탁 (한국전자통신연구소 광통신시스템연구실) ;
  • 강민호 (한국전자통신연구소 광통신시스템연구실)
  • Published : 1986.03.01
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Abstract

In optical pattern recognition, incorrect discrimination may result from a relatively high cross correlation peak between similary shaped objects. In this paper, a new modified matched CGH(computer generated hologram) filter is proposed for reducing the cross-correlation without reducing the autocorrelation. Computer simulation and experimental results show that this new method can be used efficiently for optical Korean alphabets recognition. The signal to noise characteristics are analyzed on the correlation distdribution diagram.

Keywords