A Study on the Method of High-Speed Reading of Postal 4 - state Bar Code for Supporting Automatic Processing


The KIPS Transactions:PartD, Vol. 8, No. 3, pp. 285-294, Jun. 2001
10.3745/KIPSTD.2001.8.3.285,   PDF Download:

Abstract

Recently many efforts on the development of automatic processing system for delivery sequence sorting have been performed in ETRI, which requires the use of postal 4-state bar code system to encode delivery points. This paper addresses the issue on the extension of read range and the improvement of image processing method. For the improvement of image processing procedure, applied information acquisition method through basic two thresholds onto the horizontal axial line of gray image based on reference information of 4-state bar code symbology. Symbol values are computed after creating two threshold values and location values based on the obtained information through search of horizontal axial values. The implementation result of 4-state bar code reader are obtained the symbol values within 30 ~ 60 msec (58,000 ~ 116,000 mail item/hour) without noise removal or image rotation in spite of the incline ±45˚.


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Cite this article
[IEEE Style]
M. S. Park, H. K. Kim, H. K. Jung, "A Study on the Method of High-Speed Reading of Postal 4 - state Bar Code for Supporting Automatic Processing," The KIPS Transactions:PartD, vol. 8, no. 3, pp. 285-294, 2001. DOI: 10.3745/KIPSTD.2001.8.3.285.

[ACM Style]
Moon Sung Park, Hye Kyu Kim, and Hoe Kyung Jung. 2001. A Study on the Method of High-Speed Reading of Postal 4 - state Bar Code for Supporting Automatic Processing. The KIPS Transactions:PartD, 8, 3, (2001), 285-294. DOI: 10.3745/KIPSTD.2001.8.3.285.