Row-wise full helical view weighting method and apparatus for CT scanners
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United States of America Patent
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Feb 18, 2003
Grant Date -
N/A
app pub date -
Nov 9, 2001
filing date -
Nov 9, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for performing image reconstruction using data obtained by an N beam helical scan, the method including generating projection data arrays for each of the N row in a CT detector, weighting the data arrays using a unique weighting function that is applicable to detectors having many different numbers of rows N to generate helical weighted arrays for each row, weighting the helical weighted arrays by applying a conjugate weighting function to generate conjugate arrays for each detector row and then combining the conjugate weighted arrays, filtering and back-projecting to generate a slice image.
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