Reduction of metal streak artifacts in X-ray computed tomography using a transmission maximum a posteriori algorithm
- 1 June 2000
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 47 (3) , 977-981
- https://doi.org/10.1109/23.856534
Abstract
A maximum a posteriori algorithm for reduction of metal streak artifacts in X-ray computed tomography is presented. The algorithm uses a Markov random field smoothness prior and applies increased sampling in the reconstructed image. Good results are obtained for simulations and phantom measurements: streak artifacts are reduced while small, line-shaped details are preserved.Keywords
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