| 摘要 |
A three-dimensional measurement method three-dimensionally restores an edge having a cross angle close to parallel to an epipolar line. Edges e2L, e3L and e4L on the same plane of a work are selected, and among these edges, at least two edges e2L and e4L residing in a predetermined angle range with reference to the cross angle of 90° crossing the epipolar line are three-dimensionally restored by a stereo method. Then, a three-dimensional plane P1 including these three-dimensionally restored e2L and e4L is found, and the edge e3L residing beyond a predetermined angle range with reference to the cross angle of 90° crossing the epipolar line is projected to this three-dimensional plane P1, thus three-dimensionally restoring the edge e3L. |
