| 摘要 |
PROBLEM TO BE SOLVED: To easily extract the tomographic face image of a desired site by using a plurality of radiographing images of different radiographing enlargement ratios in a linear motion type X-ray tomography apparatus. SOLUTION: The X-ray tomography apparatus is provided with an X-ray photographic constitution body provided with an X-ray source for generating X-rays to a subject and an X-ray image pickup means for detecting X-rays transmitted by the subject, a linear movement dividing means for linearly moving the X-ray photographic constitution body in the state of making the X-ray source and the X-ray image pickup means oppose each other at a fixed distance across the subject, a movement measuring means for measuring the linear moving direction of the X-ray photographic constitution body, a photographic image part for drawing a photographic image at the X-ray image pickup means, a photographic image control means for controlling the photographic image at this photographic image part, an enlargement ratio correcting means for correcting the enlargement ratio of the photographic image at the photographic image part and a photographic image synthesizing means for superposing and synthesizing the photographic image corrected by this enlargement ratio correction means.
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