| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radiation tomographic apparatus, a radiation tomographic image generation processor and a radiation tomographic image generation program, capable of reducing artifacts due to a data defect. <P>SOLUTION: A data defect extraction part 21 extracts a data defect pixel from two or more pieces of real projection data collected from different directions to a subject M. Then, an image reconstruction execution part 35 executes image reconstruction (pixel value updating) by a successive approximation method without using the data defect pixel. That is, the data defect pixel is extracted from the real projection data and the extracted data defect pixel is not made to contribute to the image reconstruction by the successive approximation method. Thus, since the pixel value updating is performed using normal pixels other than the data defect pixel, artifacts due to data defect are suppressed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
