Abstract
In order to avoid the shortcomings of the interpolation step conducted in the Fourier space, an interpolation in the object space is proposed for direct Fourier reconstruction. To implement this idea, the central slice theorem is reconsidered to calculate the density distribution of point weights placed over a square grid. An algorithm is developed and tested on the projection data from a CT scanner with a Cs-137 gamma source. The proposed algorithm provided a better resolution as compared to the standard algorithm. Copyright (C) 1999 Elsevier Science Ltd.
| Original language | English |
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| Pages (from-to) | 717-724 |
| Number of pages | 8 |
| Journal | Applied Radiation and Isotopes |
| Volume | 51 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 1999 |