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The Accurate Positioning Method of Data Matrix Code Image Marked in Cylinder Glass

  • Wei-ping He
  • Gai-fang Guo
  • Wei Wang
  • Xi-zheng Cao
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 279)

Abstract

For the problem of the data matrix (DM) code Positioning marked in cylinder glass, this paper presents an accurate positioning method of DM code image marked in cylinder glasses. Firstly, the method enhances the contrast ratio of the image based on the Retinex theory. Secondly, the paper uses projection and morphology for the early positioning of the image after enhanced. At last, the image after early positioning is positioned precisely based on Hough transform. Experiments show that the way can position the DM data image precisely and that the accuracy reaches to 90 percent. Finally, it is convenient for decoding subsequently.

Keywords

Data Matrix Code Cylinder Glass Positioning Retinex Hough Transform 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Wei-ping He
    • 1
  • Gai-fang Guo
    • 1
  • Wei Wang
    • 1
  • Xi-zheng Cao
    • 1
  1. 1.Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of EducationNorthwestern Polytechnical UniversityXi’anChina

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