| 摘要 |
PURPOSE:To perform enlarged display in real time, by mounting an image memory means for applying convolution processing to pre-processed image data to store the processing result and an enlarging and reconstructing means for applying back projection processing to the image data taken out from said memory means. CONSTITUTION:Pre-processed image data are subjected to convolution processing by a reconstruction part 6 to be stored in a disk file 11. These data are subjected to back projection processing by the reconstruction part 6 to obtain a reconstructed image which is, in turn, stored in an image memory 18 as the original image. At the same time, this image is transmitted to a frame memory 17 to be stored therein and displayed on a display part 16 as a matrix having a desired size. As mentioned above, since the projection data in usual reconstruction processing is stored and back projection is performed by utilizing said data to apply enlarging reconstruction processing, a wasteful time can be saved and enlarged display can be performed in real time. |
