A comparative study of two postreconstruction beam hardening correction methods.

A comparative study of two postreconstruction beam hardening correction methods. Research Abstract Details 

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A comparative study of two postreconstruction beam hardening correction methods. Abstract Text:

G T Herman,S S Trivedi,

The general nature of postreconstruction beam hardening correction methods is discussed. A methodology for choosing the energy of reconstruction is presented based on a technique of evaluating the "nearness" of two projection data sets. Two previously published postreconstruction beam hardening correction methods are described within a common framework. These methods differ at a number of independent places and so one can produce hybrid methods by interchanging some but not all of the choices. A basic difference between the methods is that one needs only the initial reconstruction during the postreconstruction correcting phase, while the other needs the original projection data as well. Both methods have been implemented and are compared (using a mathematical head phantom) from the points of view of the nearness of the corrected polychromatic projection data to the desired monochromatic projection data and the visual quality of the reconstructions. Variants and hybrids of the two methods are also investigated and recommendations based on the results are presented.

A comparative study of two postreconstruction beam hardening correction methods. Publishing Authors By Initials

GT Herman,SS Trivedi,

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A comparative study of two postreconstruction beam hardening correction methods. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on medical imaging

VOLUME: 2

Page Numbers: 128-35

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ISSN: 0278-0062

DAY: 31

MONTH: 01

YEAR: 1983

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LANGUAGE: eng

NlmUniqueID: 8310780

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Country: United States

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MEDLINETA: IEEE Trans Med Imaging

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