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Contrast-dependent regularization strength in the iterative reconstruction of CT images
Contrast-dependent regularization strength in the iterative reconstruction of CT images
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机译:CT图像迭代重建中的对比度相关正则化强度
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摘要
A method is disclosed for reconstructing image data of an examination object from measured data, the measured data being captured during a rotating movement of a radiation source of a computed tomography system around the examination object. In at least one embodiment, different iteration images of the examination object are determined successively from the measured data by way of an iterative algorithm, wherein with the iterative algorithm the current iteration image at any one time is high-pass-filtered and weighted as a function of contrast using a variable which contains contrast information relating to the current iteration image at that time.
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