| 摘要 |
PROBLEM TO BE SOLVED: To provide a defect extraction apparatus and a defect extraction method capable of accurately extracting a defect even when a measuring object is casting.SOLUTION: Measurement point data including three-dimensional position information of many measurement points corresponding to a shape of a measuring object are acquired (S10). A separation/alignment routine for all points for separating all the measurement points into a working plane point group and a point group other than the working plane point group and aligning each separated point group is performed (S14). Then, a defect determination routine for calculating a distance between three-dimensional corresponding points, extracting a first error corresponding area, calculating a distance between two-dimensional points, extracting a second error corresponding area from the first error corresponding area, and comparing a feature value of the second error corresponding area with a set value is performed (S15) to determine whether the second error corresponding area is a defect or not. |
