Patent ID: 7407104

Claim:
A two-dimensional code detector detecting a two-dimensional code including a plurality of position identifying patterns, with which the position within the two-dimensional code is specified beforehand, and an information pattern, which is generated by an encoding of information, and the two-dimensional code detector generating control information for an object provided with the two-dimensional code, the two-dimensional code detector comprising: an image input unit which inputs an acquired image obtained by an image pickup of the object; a pattern detection unit which detects position identifying patterns within the acquired image input by the image input unit; a position/posture calculation unit which calculates position/posture information indicating a position and posture of the two-dimensional code in a three-dimensional space based on a two-dimensional position of the position identifying patterns detected by the pattern detection unit in the acquired image; a decoding device which decodes the information pattern; and a control information generating unit which generates the control information based on the decoded information decoded by the decoding device and the position/posture information calculated by the position/posture calculation unit.