| 摘要 |
<p>A tomographic image (142, 146) of a subject (24) is generated from projection image data (120) acquired in a series of image capturing processes carried out by a radiation detector (40) based on radiation (26) emitted from a radiation source (20) and transmitted through the subject (24). An extrapolating process is performed on each of the projection image data (120) along a prescribed direction, and a smoothing process is performed on each of the projection image data (120) along a direction perpendicular to the prescribed direction, thereby determining values of a plurality of pixels (126) in non-detecting regions (95, 96), which do not belong to a detecting region (80) of the radiation detector (40). The determined values of the pixels (126) also are used to generate the tomographic image (142, 146).</p> |
