DECODING METHOD OF TWO-DIMENSIONAL CODE, DECODING DEVICE OF TWO-DIMENSIONAL CODE, PROGRAM OF PERFORMING THE DECODING METHOD OF TWO-DIMENSIONAL CODE ON COMPUTER AND RECORDING MEDIUM WITH THE PROGRAM RECORDED

摘要

PROBLEM TO BE SOLVED: To efficiently perform a decoding process of data from a two-dimensional code including a function pattern area for expressing information except for encoded data, for example, a QR code.;SOLUTION: A bit data matrix B having an element corresponding to each module structuring symbol of the QR code is used. For elements corresponding to functional patterns including a position detection pattern, an alignment pattern and the like, values (for example, 2 or 3) except for 0 and 1 are stored. In scanning the elements of the bit data matrix B, as for the element storing a value of 2 or 3, the value is ignored or the scanning direction is reversed.;COPYRIGHT: (C)2003,JPO