| 摘要 |
The invention provides a contour extracting device capable of performing necessary contouring segmentation with quicker timing while reducing calculation cost. With a contour extracting means (32), a plurality of nodal points are disposed around the peripheral edge of a subject at a nodal point disposing section (32A), and are joined in a predetermined order in a contour deforming section (32B) so as to form a contour, and after this contour has been deformed, nodal point-to-point distances in all combinations of nodal points excluding adjacent nodal points are measured in a nodal point-to-point distance measuring section (32C). And in a connection line setting section (32D), whether "a combination of nodal points in which the nodal pint-to-point distance is less than a threshold value" exists or not is decided. If this "combination" is detected, the contour is segmented in that a new connection line is set at an adjacent nodal point on the front or rear side from one nodal point to the other. |
