Method and apparatus for imaging artefact reduction
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United States of America Patent
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Jan 22, 2002
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N/A
app pub date -
Nov 17, 1998
filing date -
Jul 9, 1996
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Abstract
The invention relates to a method and apparatus for reducing imaging artifacts in physiological images, such as magnetic resonance imaging images. A model of a physical cause for the image artifact is modelled and the effects of perturbing this model on a focus criterion of the image analyzed so as to optimize the focus criterion. For an optimized focus criterion, the model should reflect the actual physical cause of the image artifact. A focus criterion is a measure of entropy of the image, with an optimized image having reduced entropy.
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