An image of a region is taken which includes a two-dimensional code. A two-dimensional code area is determined in the image. The two-dimensional code area corresponds to the two-dimensional code. Inspection lines are set which connect opposite sides in two pairs among four sides indicating boundaries...http://www.google.fr/patents/US6612497?utm_source=gb-gplus-shareBrevet US6612497 - Two-dimensional-code related method, apparatus, and recording medium
Two-dimensional-code related method, apparatus, and recording medium
