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- 2014-06-17
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- 孙杨
Description: Correctionforreconstructed
images
wasthat the
ring
artifacts in theCartesian
coordinateweretransformedinto thevertical line artifactsinthe
polar
coordinateand
removedas
sinogram
correction．Thefirst methodis al(ind of
image preprocessing．
Anotherone
belongs
to
imagepostprocessing．In
mostcasescorrectionsare
optimally
applied
to sinogramdata．The setof
algorithms
enable
virtuallycompletering
artifact
removalfrom
tomographic imagery
withminimalto
negligible
contaminationofthe
underlying
data．
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改进Canny算法的CT图像环形伪影校正.pdf
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