Method and system for detecting detection patterns of QR code
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United States of America Patent
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Nov 3, 2015
Grant Date -
Apr 2, 2015
app pub date -
Dec 11, 2013
filing date -
Sep 29, 2013
priority date (Note) -
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Abstract
Method and system for detecting detection patterns of a QR code is disclosed, detection is performed in a first direction and then in a second direction based on the first direction detection to detect a line segment having a length ratio of black:white:black:white:black meeting a predetermined ratio to determine the central points of the detection patterns, and thereby find out all detection patterns. Line-by-line traversal detection in a first direction is used to detect the detection patterns. Detection is performed based on the detected central point of the first line segment. Thus, detection steps may be greatly saved to simplify the detection procedure and improve computing speed. Fast detection of detection patterns may be realized for a QR code image.
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