| 摘要 |
PURPOSE:To emphasize only the concerning site of a perspective transformation picture, and to enable a clear display which is easy to observe by operating a density gradation conversion of various density value data, emphasizing prescribed various density band data, and then operating a perspective transformation. CONSTITUTION:A continuous tomographic image by an X-ray CT device or the like is written in a picture memory 33 of a 3D processing part 3. Then, when a line of sight direction is set, the continuous tomographic picture is extracted through an interpolating part 34 by an interpolation factor corresponding to address integral and decimal parts converted into line of sight coordinates from a line of sight generating part 31, and voxcel data are prepared. The Hans field number of the voxcel data is applied to a designated wind function by a gradation converting part 35 so that the voxcel data whose various density value of the concerning site is large can be prepared, and supplied to a perspective transforming part 36. Then, the perspective transformation picture in the line of sight direction is prepared. Thus, the picture data of the concerning site is always displayed certainly and clearly. |
