Invention Grant
US08634625B2 Method for the reduction of image artifacts, in particular of metal artifacts, in CT image data 有权
在CT图像数据中减少图像伪像,特别是金属伪影的方法

Method for the reduction of image artifacts, in particular of metal artifacts, in CT image data
Abstract:
A method is disclosed for the reduction of image artifacts, in particular metal artifacts, during the generation of computed tomography image data of an object. In at least one embodiment of the method, two CT image data sets are generated with different medium x-ray energies. By way of a weighted combination of the two CT image data sets, a new image data set is calculated. The weighting factor employed in the weighted combination is here selected in such a way that the image artifacts in the new CT image data set are significantly reduced compared with the image artifacts in the two original CT image data sets. In this way it is possible in a simple manner significantly to reduce in particular metal artifacts in CT images.
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