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Robust decoding of barcode signals acquired under nonuniform illumination

Title
Robust decoding of barcode signals acquired under nonuniform illumination
Authors
Lee H.Kim J.
Ewha Authors
김정태
SCOPUS Author ID
김정태scopus
Issue Date
2008
Journal Title
Transactions of the Korean Institute of Electrical Engineers
ISSN
1975-8359JCR Link
Citation
vol. 57, no. 4, pp. 718 - 724
Indexed
SCOPUS; KCI scopus
Abstract
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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엘텍공과대학 > 전자공학과 > Journal papers
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