| 摘要 |
<p>The radiography system (10) generates a differential phase image of a subject by detecting a radiological image, which is formed by radiation that has passed through a first grating (31) and been modulated by passing through the subject, and is masked by a second grating (32). The relative positions of the first grating and the second grating are adjusted to generate, in the radiological image, a moire pattern with a period in a direction that intersects with the direction of the period of the first grating, and using a filter that acts on image contrast changes in the direction of the period of the moire pattern, nonuniformities in the phase differential image are removed or reduced.</p> |
