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Proceedings Paper

Algorithm based on symmetry for locating the finder pattern of the QR code
Author(s): Donghong Hu; Xinmeng Chen; Dan Yu; Weina Liu; Bin Mei
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Paper Abstract

The symbology of the QR Code and the traditional techniques for recognizing the finder pattern of the QR Code were introduced and the disadvantages of these techniques were analyzed. Based on the symmetry of the finder pattern of the QR Code, an algorithm for locating the center of the finder pattern was proposed. By this algorithm, the center of the finder pattern of the QR Code can be located accurately even though one module of the QR Code image occupies only 2.8 pixels or the image is skewed seriously or the image is illuminated not uniformly.

Paper Details

Date Published: 28 October 2006
PDF: 6 pages
Proc. SPIE 6420, Geoinformatics 2006: Geospatial Information Science, 64200O (28 October 2006); doi: 10.1117/12.712726
Show Author Affiliations
Donghong Hu, Wuhan Univ. (China)
Xinmeng Chen, Wuhan Univ. (China)
Dan Yu, Wuhan Univ. (China)
Weina Liu, Hubei Univ. (China)
Bin Mei, Hubei Univ. (China)


Published in SPIE Proceedings Vol. 6420:
Geoinformatics 2006: Geospatial Information Science
Jianya Gong; Jingxiong Zhang, Editor(s)

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