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

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.

키워드

참고문헌

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