| 摘要 |
PROBLEM TO BE SOLVED: To provide a system, a program and a mark set for position measurement which maintain the accuracy of the position measurement of an object even when the mark set for the position measurement attached to the object faces a camera straight, and the object for position measurement. SOLUTION: The system for position measurement includes the mark set 2 which has four or more basic marks attached to the object 1 and being in the known positional relations, wherein at least one of the basic marks is disposed apart from a plane whereon the other three or more basic marks are positioned, and wherein the point of intersection with the plane of a perpendicular line drawn to this plane from the basic mark disposed apart from the plane is located outside a polygon formed by the other three or more basic marks. The system includes further the camera 13 which has a two-dimensional imaging element 12 imaging the mark set 2, and an arithmetic device 14 which computes at least one of a three-dimensional position and an angle of the object, based on an image of the mark set photographed by the camera 13. COPYRIGHT: (C)2010,JPO&INPIT
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