QR METHOD FOR DECODING MATRIX-TYPE TWO-DIMENSIONAL CODE

摘要

The present invention is characterized in that the matrix QR code image to be decoded is a matrix QR code code linking code array composed of a plurality of identical unit code patterns and the scanned image does not need to include one complete unit code pattern, A matrix QR code decoding method of recovering and decoding one complete unit code pattern by acquiring a binary image of a matrix QR code code connection code array to be tracked and tracking the position of each code point and position in the unit code pattern of the positioning point to provide. The present invention requires an area twice as large as the unit code pattern even if it is attempted to be decoded under the worst code scan conditions and the decoding method of the existing technique has to be at least six times larger than the unit code pattern under the worst code scan condition It can be decrypted. Further, the present invention is applied even when the code pattern image is inclined, and the amount of computation is smaller than that of the existing technology, thereby saving resources.