| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce artifacts caused by unmatching between the position of image data to be reconstructed and the view center of projection data. <P>SOLUTION: A scan control section 31 moves a top plate 15 while changing the speed of the top plate 15 and scans a subject placed on the top plate 15 by cone beam X-rays to collect projection data. A weighting section 43 allocates a predetermined value to a data range required for reconstruction but not collected in the case of not collecting a projection data set in a required sufficient range for reconstructing image data in a predetermined slice position from the collected projection data, and performs weighting that corresponds to the collection time, to the collected projection data required for reconstructing image data related to the predetermined slice position. A reconstruction processing section 45 reconstructs image data related to the predetermined slice position based on the predetermined value and the weighted projection data. <P>COPYRIGHT: (C)2013,JPO&INPIT |
