The presented software reproduces numerical results of Inverse Problems journal paper. Software generates realisitic synthetic multi-energetic tomographic projection data and reconstructs it. Novel prior-correlative multi-channel algorithm is compared with other state-of-the-art reconstruction algorithms. Note that a GPU (Nvidia) card is required to use the software.

• MATLAB
• C compilers and nvcc CUDA SDK compilers
• ASTRA-toolbox

• Photon Attenuation
• Spektr

• CCPi-RegularisationToolkit
• Spot operator package

• See INSTALLATION file for detailed recommendations
• There is an issue related to Photon Attenuation software

• SpectralData_generation_demo.m - script to generate data
• SpectralData_noCrime.mat - pre-generated data obtained with the script above
• SpectralReconDemo.m - script to perform reconstruction of generated data
• FISTA_REC_rct.m - main reconstruction function (FISTA algorithm)

• Kazantsev D., Jørgensen J.S., Andersen M., Lionheart W.R., Lee P.D. and Withers P.J., 2018. Joint image reconstruction method with correlative multi-channel prior for X-ray spectral computed tomography. Inverse Problems
• SIAM 2018 presentation

GNU GENERAL PUBLIC LICENSE v.3

can be addressed to Daniil Kazantsev at dkazanc@hotmail.com