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Revisit of the Ramp Filter
An important part of the filtered backprojection (FBP) algorithm is the ramp filter. This paper derives the discrete version of the ramp filter in the Fourier domain and studies the windowing effects. When a window function is used to control the noise, the image amplitude will be affected and reduc...
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| Publicado no: | IEEE Trans Nucl Sci |
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| Autor principal: | |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2014
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4341983/ https://ncbi.nlm.nih.gov/pubmed/25729091 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1109/TNS.2014.2363776 |
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