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http://dx.doi.org/10.6109/jkiice.2012.16.6.1187

QR-code finder recognition using four directional scanning method  

Lee, Yeon-Kyung (상명대학교 디지털미디어학부)
Yoo, Hoon (상명대학교 디지털미디어학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.16, no.6, 2012 , pp. 1187-1192 More about this Journal
Abstract
This paper describes a method to detect QR-code finders by four-direction scanning. The finder recognition is the first step in the QR-code recognition. If the finder is missing, QR-code recognition fails. The existing QR-code recognition method has a problem that the recognition performance decreases for perspectively distored images. To overcome the problem, we introduce four-direction scanning and a candidate set image to accurately detect QR-code finders. Using morphological operations detect the QR-code finder in the candidate set image robustly. To show the effectiveness of our method, we compared our method with the well-known existing method. The experimental result indicates that the proposed method is superior to the existing method in terms of the finder recognition performance.
Keywords
QR code; Directional scanning; QR-code finder recognition;
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