Dot pattern, dot pattern forming medium, dot pattern image data generating program, dot pattern forming device, optical device, optical reader, information input / output device, dot pattern reader

摘要

It is a technology that embodies the definition of information based on the distance and direction between two dots rather than the dot placement position. (1) Compared to the above-mentioned conventional dot patterns, (1) Reading is possible even when the printing resolution and reading resolution are low. (2) The amount of information that can be defined with a small number of dots is large, (3) it can be decoded at high speed, and (4) it can be easily read even if the arrangement of the captured dot pattern is greatly deformed, 5) To provide a new dot pattern that is difficult to decode visually. At least one set of start point information dots that are start point information dots and end point information dots that are end points are information dots, and the plurality of information dots have a predetermined interval between adjacent information dots in a predetermined order from the start point information dots A dot pattern in which a code is encoded based on the predetermined distance value or the predetermined distance value between the predetermined directions. .