| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus which eliminates measurement noises of a detector depending on an angle of view of an X-ray source without a reduction of the resolution. SOLUTION: This X-ray CT apparatus has a means for computing a sum (Sum) of raw data which is a projection data converted logarithmically for the amount of transmitted X-ray detected by each detecting component for the angle of view, a means for smoothing the sum (Sum) of raw data computed for each angle of view along the angle of view and obtaining a smoothed sum (Smooth) of the raw data, and a means for obtaining a corrected raw data R' for each detecting component of each angle of view so that the sum (Sum) of the raw data for each angle of view becomes the smoothed sum (Smooth) of the raw data. COPYRIGHT: (C)2005,JPO&NCIPI
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