Thanks for your contribution, it is wonderful.I wanted to use your code for the reconstruction of sparse-view CT with metal artifacts on deeplesion dataset, but the results are not good.At the 800th step of training, psnr is still lower than 20dB.And the psnr increases by no more than 1dB after many steps of training, and sometimes decreases.I want to know if I should adjust the hyperparameter or learning rate.I would appreciate it if you could tell me.