Public

MRI — Public Tier

(3 scenes)

Full-access development tier with all data visible.

What you get

Measurements (y), ideal forward operator (H), spec ranges, ground truth (x_true), and true mismatch spec.

How to use

Load HDF5 → compare reconstruction vs x_true → check consistency → iterate.

What to submit

Reconstructed signals (x_hat) and corrected spec as HDF5.

Parameter Specifications

True spec visible — use these exact values for Scenario III oracle reconstruction.

Parameter Spec Range True Value Unit
B0_inhomog -1.5 – 3.0 0.75 ppm
gradient_nonlin -2.0 – 4.0 1.0 %
coil_sensitivity -5.0 – 10.0 2.5 %
k_trajectory -1.0 – 2.0 0.5 %

InverseNet Baseline Scores

Method: CPU_baseline — Mismatch parameter: nominal

Scenario I (Ideal)

17.37 dB

SSIM 0.4357

Scenario II (Mismatch)

28.99 dB

SSIM 0.8941

Scenario III (Oracle)

43.93 dB

SSIM 0.9976

Per-scene breakdown (4 scenes)
Scene PSNR I SSIM I PSNR II SSIM II PSNR III SSIM III
scene_00 16.37 0.3770 28.92 0.8937 43.09 0.9971
scene_01 17.03 0.5076 29.55 0.9089 44.00 0.9974
scene_02 19.88 0.5132 29.30 0.8902 45.81 0.9983
scene_03 16.21 0.3451 28.21 0.8837 42.82 0.9974

Public Tier Leaderboard

# Method Score PSNR SSIM Consistency Trust Source
1 HUMUS-Net++ + gradient 0.901 41.63 0.991 0.94 ✓ Certified Fabian et al., dHUMUS-Net 2023 — k-space DC per module + dynamic multi-scale weighting + INR head + perceptual-structural loss + axial attention
2 HybridCascade++ + gradient 0.894 40.96 0.99 0.94 ✓ Certified HybridCascade++ MICCAI 2021 + IEEE TMI 2025 — multi-scale cascade DC + SIREN INR warm-start + SSIM structural anchor + DRUNet polish + freq-blend LF/HF fusion
3 SwinMR++ + gradient 0.889 42.02 0.992 0.86 ✓ Certified Huang et al., IEEE TMI 2025 — multi-scale axial attention + INR head + k-space DC per module + LPIPS+SSIM+k-space joint loss + dynamic feature fusion
4 MRI-FM + gradient 0.889 40.51 0.989 0.94 ✓ Certified Wang et al., Nature MI 2026
5 PromptMR-SFM + gradient 0.882 40.05 0.988 0.93 ✓ Certified PWM 2026
6 MMR-Mamba + gradient 0.879 39.97 0.988 0.92 ✓ Certified Zhao et al., Med. Image Anal. 2025
7 MR-IPT + gradient 0.873 39.62 0.987 0.91 ✓ Certified Sci. Reports 2025
8 MRDynamo + gradient 0.871 39.08 0.985 0.93 ✓ Certified Chen et al., NeurIPS 2024
9 MoDL-Net++ + gradient 0.866 39.72 0.987 0.87 ✓ Certified MoDL-Net++ IEEE TMI 2025 — multi-scale pyramid fusion + RDN/Swin deep prior + differentiable DC layers + LPIPS+SSIM+L1 joint loss + two-stage training strategy
10 U-Net++ + gradient 0.862 38.76 0.985 0.9 ✓ Certified Chen & Boning, IEEE TMI 2024 (DOI: 10.1109/TMI.2024.3367890) — Residual U-Net + data consistency layers + plug-and-play prior + residual connections + dense skip paths
11 ReconFormer++ + gradient 0.862 38.76 0.985 0.9 ✓ Certified Pan et al., IEEE TMI 2025
12 PnP-DnCNN-Pro + gradient 0.858 38.63 0.984 0.89 ✓ Certified PnP-DnCNN-Pro IEEE TMI 2025 (DOI:10.1109/TMI.2025.3441240) — multi-scale DnCNN denoiser + adaptive mu/sigma schedule + SIREN INR output head + joint LPIPS+SSIM denoiser training + dynamic PnP regularization scheduling
13 ReconFormer + gradient 0.856 37.92 0.982 0.92 ✓ Certified Guo et al., IEEE TMI 2024
14 BrainID-MRI + gradient 0.856 38.29 0.983 0.9 ✓ Certified Liu et al., CVPR 2025
15 MRI-DiffusionNet + gradient 0.848 38.12 0.982 0.87 ✓ Certified Song et al., ICCV 2024
16 PromptMR + gradient 0.844 37.91 0.982 0.86 ✓ Certified Bai et al., ECCV 2024
17 E2E-VarNet + gradient 0.838 36.56 0.976 0.91 ✓ Certified Sriram et al., MICCAI 2020
18 HUMUS-Net + gradient 0.832 36.05 0.974 0.91 ✓ Certified Fabian et al., NeurIPS 2022
19 SwinMR + gradient 0.830 36.53 0.976 0.87 ✓ Certified Huang et al., MICCAI 2022
20 HybridCascade + gradient 0.818 34.95 0.967 0.91 ✓ Certified Fastmri, arXiv 2020
21 DCCNN + gradient 0.812 33.84 0.96 0.95 ✓ Certified Schlemper et al., IEEE TMI 2018
22 Deep-ADMM-Net + gradient 0.809 33.76 0.959 0.94 ✓ Certified Yang et al., NeurIPS 2016
23 PnP-DnCNN + gradient 0.806 33.54 0.957 0.94 ✓ Certified Ahmad et al., IEEE TCI 2019 (DOI:10.1109/TCI.2019.2944521)
24 MoDL + gradient 0.804 34.3 0.963 0.88 ✓ Certified Aggarwal et al., IEEE TMI 2019
25 ALOHA + gradient 0.801 33.46 0.957 0.92 ✓ Certified Jin et al., IEEE TMI 2016
26 U-Net + gradient 0.796 33.36 0.956 0.9 ✓ Certified Zbontar et al., arXiv 2018
27 LORAKS + gradient 0.790 32.61 0.949 0.92 ✓ Certified Haldar, IEEE TMI 2014
28 ESPIRiT + gradient 0.786 32.31 0.946 0.92 ✓ Certified Uecker et al., MRM 2014
29 BM3D-MRI + gradient 0.772 31.76 0.94 0.89 ✓ Certified Eksioglu, Comput. Math. Meth. Med. 2016
30 L1-Wavelet + gradient 0.743 30.3 0.921 0.86 ✓ Certified Lustig et al., MRM 2007
31 k-t SPARSE-SENSE + gradient 0.742 29.59 0.91 0.91 ✓ Certified Lustig et al., MRM 2006
32 Score-MRI + gradient 0.730 29.31 0.906 0.87 ✓ Certified Chung & Ye, Med. Image Anal. 2022
33 GRAPPA + gradient 0.726 28.86 0.898 0.89 ✓ Certified Griswold et al., MRM 2002
34 SENSE + gradient 0.692 26.93 0.856 0.9 ✓ Certified Pruessmann et al., MRM 1999
35 Zero-Filled IFFT + gradient 0.644 24.36 0.781 0.94 ✓ Certified Pruessmann et al., MRM 1999

Visible Data Fields

y H_ideal spec_ranges x_true true_spec

Dataset

Format: HDF5
Scenes: 3

Scoring Formula

0.4 × PSNR_norm + 0.4 × SSIM + 0.2 × (1 − ‖y − Ĥx̂‖/‖y‖)

PSNR: 40% SSIM: 40% Consistency: 20%
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