Local computed tomography via iterative deblurring
- 1 November 1996
- Vol. 18 (8) , 582-588
- https://doi.org/10.1002/sca.4950180808
Abstract
X-ray computed tomography is a major imaging modality. An iterative deblurring method is adapted for local reconstruction in parallel-beam and cone-beam geometries, utilizing only x-rays passing through a region of interest. The feasibility is demonstrated in numerical simulation with noise-free and noisy projection data. The iterative deblurring method has the theoretical advantages of maintaining nonnegativity, converging monotonically and minimizing Csiszàr's I-divergence.Keywords
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