Method and system for detecting detection patterns of QR code

A system for detecting detection patterns of a QR code, the system comprising:

• a first direction detection module, for detecting the QR code along a first direction to detect a first line segment having a length ratio of black:white:black:white:black meeting a predetermined ratio, and determining the central point of the first line segment;
• a second direction detection module, for detecting along a second direction a straight line running through the central point of the first line segment to get a second line segment having a length ratio of black:white:black:white:black meeting the predetermined ratio, and using the central point of the second line segment as the central point of the detection pattern.

A system for detecting detection patterns of a QR code, the system comprising a processor, wherein the processor is configured to

• detect the QR code along a first direction to detect a first line segment having a length ratio of black:white:black:white:black meeting a predetermined ratio, and determine the central point of the first line segment;
• detect along a second direction a straight line running through the central point of the first line segment to get a second line segment having a length ratio of black:white:black:white:black meeting the predetermined ratio, and use the central point of the second line segment as the central point of the detection pattern.