Proximal ADMM for multi-channel image reconstruction in spectral X-ray CT.

Alex Sawatzky,Qiaofeng Xu,Carsten O Schirra,Mark A Anastasio

IEEE Transactions on Medical Imaging（2014）

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摘要

The development of spectral X-ray computed tomography (CT) using binned photon-counting detectors has received great attention in recent years and has enabled selective imaging of contrast agents loaded with K-edge materials. A practical issue in implementing this technique is the mitigation of the high-noise levels often present in material-decomposed sinogram data. In this work, the spectral X-r...

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关键词

Materials,Image reconstruction,Computed tomography,Covariance matrices,Reconstruction algorithms,Detectors

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