Julia implementation of
Zongyu Li, Yuni K. Dewaraja and Jeffrey A. Fessler,
"Training End-to-End Unrolled Iterative Neural Networks for SPECT Image Reconstruction,"
in IEEE TRPMS, vol. 7, no. 4, pp. 410-420, April 2023, doi: 10.1109/TRPMS.2023.3240934.
The full Julia package is at https://github.com/JuliaImageRecon/SPECTrecon.jl