전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제57권4호
  • /
  • Pages.718-724
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  • 2008
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

불균일 조명 하에서 획득된 바코드 신호의 강인 복원

Robust Decoding of Barcode Signals Acquired under Nonuniform Illumination

  • 이한아 (이화여자대학교 전자공학과) ;
  • 김정태 (이화여자대학교 전자공학과)
  • 발행 : 2008.04.01
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초록

We present a novel joint barcode deblurring and nonuniform illumination compensation algorithm for barcode signals whose number of modules is known. The proposed algorithm is based on a penalized least squares method using a roughness penalty function for an illumination model and a double well penalty function for a barcode signal model. In simulations, the proposed method shows an improved performance compared with a conventional method without compensating nonuniform illumination effects. In addition, the proposed method converges quickly during optimization(within 15 iterations), thereby showing strong possibility for real time decoding of barcode signals.

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참고문헌

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