Hidden
Talbot-Lau X-ray Grating Interferometry — Hidden Tier
(5 scenes)Fully blind server-side evaluation — no data download.
What you get
No data downloadable. Algorithm runs server-side on hidden measurements.
How to use
Package algorithm as Docker container / Python script. Submit via link.
What to submit
Containerized algorithm accepting y + H, outputting x_hat + corrected spec.
Parameter Specifications
🔒
True spec hidden — blind evaluation, only ranges available.
| Parameter | Spec Range | Unit |
|---|---|---|
| grating_alignment_(rotation) | -0.07 – 0.23 | deg |
| inter_grating_distance_error | -0.14 – 0.46 | - |
| phase_stepping_error | -0.7 – 2.3 | perstep |
| grating_defect_fraction | -0.42 – 1.38 | - |
Hidden Tier Leaderboard
| # | Method | Score | PSNR | SSIM | Consistency | Trust | Source |
|---|---|---|---|---|---|---|---|
| 1 | GratingFormer + gradient | 0.653 | 26.28 | 0.84 | 0.77 | ✓ Certified | Grating interferometry transformer, 2024 |
| 2 | Phase Stepping + gradient | 0.503 | 20.05 | 0.601 | 0.81 | ✓ Certified | Weitkamp et al., Opt. Express 2005 |
| 3 | PCA Retrieval + gradient | 0.501 | 20.33 | 0.614 | 0.76 | ✓ Certified | Zanette et al., PMB 2012 |
| 4 | DPC-Net + gradient | 0.424 | 17.33 | 0.467 | 0.82 | ✓ Certified | Differential phase contrast CNN, 2021 |
Dataset
Scenes: 5
Scoring Formula
0.4 × PSNR_norm + 0.4 × SSIM + 0.2 × (1 − ‖y − Ĥx̂‖/‖y‖)
PSNR: 40%
SSIM: 40%
Consistency: 20%