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Band-Restricted Estimation of Noise Variance in Filtered Backprojection Reconstructions Using Repeated Scans
We introduce a new estimator for noise variance in tomographic images reconstructed using algorithms of the filtered backprojection type. The new estimator operates on data acquired from repeated scans of the object under examination, is unbiased, and is shown to have significantly lower variance th...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2010
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2910868/ https://ncbi.nlm.nih.gov/pubmed/20236879 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1109/TMI.2009.2034961 |
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