IEEE Transactions on Nuclear Science vol:47 issue:3 pages:977-981
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.
De Man B., Nuyts J., Dupont P., Marchal G., Suetens P., ''Reduction of metal streak artifacts in X-ray computed tomography using a transmission maximum a posteriori algorithm'', IEEE transactions on nuclear science, vol. 47, no. 3, pp. 977-981, June 2000.