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- W2386292757 abstract "In order to improve the quality of low-dose CT image,a novel approach is proposed based on low-dose CT projection restoration.In this paper,first,projection data is transformed to a Gaussian distribution from a Poisson distribution using nonlinear Anscombe transform.Then,the transformed data is filtered by an efficient BM3D algorithm.Last,the reconstruction result is achieved by inverse Anscombe transform and Filtered Back Projection(FBP) method.Because the variance of the Gaussian noise is known,the proposed scheme can be implemented without any manual parameters.Simulated and clinical low-dose CT data experiment results demonstrate that a high quality CT image can be reconstructed with effectively suppressed noise and streak artifacts." @default.
- W2386292757 created "2016-06-24" @default.
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- W2386292757 date "2010-01-01" @default.
- W2386292757 modified "2023-09-26" @default.
- W2386292757 title "Anscombe transform and BM3D filtering based projection restoration for lowdose CT reconstruction" @default.
- W2386292757 hasPublicationYear "2010" @default.
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