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Relation between the filtered backprojection algorithm and the backprojection algorithm in CT
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DOI：10.1109/LSP.2005.851615.png)
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摘要
En 中文
In this letter, we present a new fan-beam CT formula, based on which we discuss the relation between the filtered backprojection (FBP) algorithm and the backprojection (BP) algorithm. Specifically, the FBP algorithm can be expressed in a series with its first-order approximation being the BP algorithm. As a result, we identify a link between X-ray CT and number theory.
Keyword:
common waveform analysis
computed tomography (CT)
generalized function
number theory
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9.6
论文数:
1.1W
被引数:
1.7W
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