| 摘要 |
PURPOSE:To take a highly accurate measurement even with low resolution by finding the coordinates of intersections of (n) scanning lines parallel to an X and a Y axis and arcs, every semicircle, and calculating the center coordinates of the circle from specific expressions when the center of the circle is indexed by image processing on X-Y orthogonal coordinates. CONSTITUTION:When the center of the circle is indexed by the image processing on the X-Y orthogonal coordinates, the coordinates of intersections of (n) scanning lines parallel to the X axis and the arcs and the coordinates of intersections of (n) scanning lines parallel to the Y axis and the arcs are found, every semicircle. Then the center coordinates of the circle are calculated from the expressions to take a highly accurate measurement even with the low resolution. |
