Fig. 3

Image roughness versus CRC_peak plots for the NEMA standard set of spheres for the Siemens mMR (left) and GE Signa (right). The top row shows plots for the whole 30 min of listmode data and the bottom row, the average value over six frames of 5 min duration. Error bars in the bottom plot show the ensemble noise over the six realizations. The dotted lines represent the reconstructions with the use of resolution recovery (either PSF or IR, depending of vendor). The numbers of iterations and updates are indicated on the top plots