PMID: 8946772Nov 1, 1996Paper

Local computed tomography via iterative deblurring

Scanning
Ge WangM W Vannier

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.

References

Jan 1, 1979·Computers in Biology and Medicine·G Minerbo
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Nov 1, 1990·Medical Physics·C R Crawford, K F King
Jun 1, 1994·Medical Physics·G WangM W Vannier
Mar 1, 1994·Journal of Computer Assisted Tomography·W A KalenderC Süss
Jan 1, 1993·IEEE Transactions on Medical Imaging·G WangD M Shinozaki
Jan 1, 1995·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·J A O'Sullivan
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