| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a two-dimensional code capable of recognition with high accuracy. <P>SOLUTION: The two-dimensional code includes a reference cell 100 having a predetermined shape, a plurality of polygon cells 106 constituting a code data by two-dimensionally disposing each polygon cell, and a plurality of corner cells 104 disposed in such a way as to surround an area in which the plurality of polygon cells 106 are disposed two-dimensionally. At least one cell among the reference cell 100, the polygon cells 106 and the corner cells 104 is painted with a color different from the color of the other cells. When the above two-dimensional code is imaged by an imaging apparatus, each cell can be extracted by setting the range of pixel values, and thereby the reading accuracy of the two-dimensional code can be improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
