INFORMATION DISPLAY TAG HAVING TWO-DIMENSIONAL INFORMATION PATTERN, PICTURE PROCESSING METHOD AND DEVICE USING THE TAG

摘要

PURPOSE: To efficiently and two-dimensionally display information on an object. ;CONSTITUTION: A two-dimensional pattern 50 displayed on a two-dimensional tag is constituted of a first area 52 constituted of a square position reference area 60 for identifying a position and a posture at the center and an identification area 62 for one data cell at a periphery, a second area a54 where white and black patterns alternately appear for identifying the read start position of information and a third area 56 for displaying information on the encoded object. When the square area of the first area 52 is detected, the position of the two-dimensional tag where the two-dimensional pattern 50 is displayed can be detected. When the data cell where the black and white patterns alternately appear in the second area 54 is detected, the posture of the two-dimensional tag can be detected and corrected. Thus, an other peripheral part where much information quantity can be displayed can effectively be used.;COPYRIGHT: (C)1996,JPO