| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain the speeding-up of calculation while reducing a calculation error as much as possible in a tomogram image reconstruction method in which a tomogram image is constructed in accordance with a procedure including the forward projection processing. <P>SOLUTION: When a pixel P constituting a tomogram image is projected to the light-receiving surface F of a detector to determine each pixel density of the detector in a forward projection processing, the arithmetic processing is performed by approximating that the detection probability is constant in the whole projection area Ap to the light-receiving surface F of the pixel P, thereby achieving the speeding-up of calculation by eliminating conditional branches thereof while reducing a calculation error. <P>COPYRIGHT: (C)2013,JPO&INPIT |
