| 摘要 |
PURPOSE:To easily extract the contour of an aimed part by extracting the contour through the calculation processing in a shift vicinity region, when an automatic trace instruction means is selected, while carrying out the contour extraction based on the locus of a cursor when a manual trace instruction means is selected. CONSTITUTION:When organs A and B are displayed in contiguous form on a monitor 8, a cursor C is displayed at the A position of the contour of the organ A by operating a keyboard 9, and then it is judged that automatic trace is enabled, and an automatic/manual trace instruction part 5 is operated. When a function key 5A is continuously pushed, a selection switch 4 is selected to an automatic contour extraction part 6 side, and the automatic trace function operates, and the cursor C shifts from the A position, and the contour of the organ A is automatically traced. When the cursor C reaches the B position, it is judged that automatic trace is unable, and the pushing of the function key 5A is released, and then automatic trace is suspended, and the selecting switch 4 is selected to a pointing device 7 side, and manual trace is carried out by operating a mouse 7A. Accordingly, the contour of an aimed part can be extracted easily. |
