| 摘要 |
<p>In the reconstruction of the absorption values in the various picture elements of a plane under examination from measured values which were measured by means of a scanner for transversal tomography, it is necessary to assign to each picture element from each measured series (at a given angle with respect to the examination plane) at least one intermediate value. This means in general that an intermediate value has to be computed with up to three measured values and weight factors. This requires very much computing time. The invention describes a way which requires less computing time in which by the interpolation the intermediate values which are assigned to the various picture elements are not computed accurately for the various picture elements but only to an approximation, which provides a considerable shortening of the computing time. The error caused thereby, however, can be kept small.</p> |
