Fig. 3
From: Magnetic resonance image processing transformer for general accelerated image restoration

Comparison of MR-IPT variants across different undersampling patterns. We implement three MR-IPT variants across diverse undersampling patterns: (1) MR-IPT-type, where heads and tails are grouped based on acceleration ratios, with each head-tail pair specializing in different sampling masks; (2) MR-IPT-level, where heads and tails are grouped based on sampling masks, allowing each pair to generalize across different acceleration ratios; and (3) MR-IPT-split, where each unique combination of sampling mask and acceleration ratio is assigned a dedicated head-tail pair. The results demonstrate that all three variants achieve high-quality restorations, highlighting MR-IPT’s flexibility in handling diverse undersampling patterns.