Tensor-Based Dictionary Learning for Spectral CT Reconstruction.
IEEE Transactions on Medical Imaging(2017)
摘要
Spectral computed tomography (CT) produces an energy-discriminative attenuation map of an object, extending a conventional image volume with a spectral dimension. In spectral CT, an image can be sparsely represented in each of multiple energy channels, and are highly correlated among energy channels. According to this characteristics, we propose a tensor-based dictionary learning method for spectr...
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关键词
Tensile stress,Computed tomography,Dictionaries,Image reconstruction,Photonics,Reconstruction algorithms,Learning systems
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