| 摘要 |
An X-ray imaging apparatus irradiates an object with X rays radiated by an X-ray generator, converts an image of the object produced by X-rays transmitted through the object into an electrical signal, processes the X-ray image and visualizes the object image by a display unit. In the imaging apparatus, the amount of spatial coordinate distortion of the picked up image is measured from an image of an object before it is picked up and data representative of the distortion amount is stored in a distortion measuring unit. Addresses of pixels in the collected image, which correspond to the pixel addresses for storing the corrected image, are computed by an interpolating operation using the distortion data, and intensities of the pixels at the computed pixel addresses are computed, by the interpolating operation, from the pixel intensities in the collected image data.
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