Spring: L. Mehl, J. Schmalfuss, A. Jahedi, Y. Nalivayko, A. Bruhn — University of Stuttgart
RobustSpring: V. Oei, J. Schmalfuss, L. Mehl, M. Bartsch, S. Agnihotri, M. Keuper, A. Bulling, A. Bruhn — University of Stuttgart, University of Mannheim, MPI for Informatics
March 2, 2026, 5:31 p.m. — Public
V. Bargatin, A. Yakovenko, K. Abud, and D. Vatolin. "FreeFlow: A Bias-free Hierarchical Transformer for Optical Flow Estimation", ECCV 2026.
Code: https://github.com/msu-video-group/freeflow
| 1px total |
1px low-detail |
1px high-detail |
1px matched |
1px unmatched |
1px rigid |
1px non-rigid |
1px not sky |
1px sky |
1px s0-10 |
1px s10-40 |
1px s40+ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.192 | 2.855 | 56.187 | 2.616 | 26.996 | 1.430 | 16.522 | 3.247 | 2.348 | 0.936 | 3.607 | 20.941 |
| EPE total |
EPE low-detail |
EPE high-detail |
EPE matched |
EPE unmatched |
EPE rigid |
EPE non-rigid |
EPE not sky |
EPE sky |
EPE s0-10 |
EPE s10-40 |
EPE s40+ |
| 0.278 | 0.255 | 3.858 | 0.220 | 2.700 | 0.140 | 1.322 | 0.283 | 0.197 | 0.097 | 0.283 | 1.782 |
| Fl total |
Fl low-detail |
Fl high-detail |
Fl matched |
Fl unmatched |
Fl rigid |
Fl non-rigid |
Fl not sky |
Fl sky |
Fl s0-10 |
Fl s10-40 |
Fl s40+ |
| 1.048 | 0.925 | 20.387 | 0.812 | 10.810 | 0.667 | 3.934 | 1.108 | 0.140 | 0.323 | 2.077 | 4.327 |
| WAUC total |
WAUC low-detail |
WAUC high-detail |
WAUC matched |
WAUC unmatched |
WAUC rigid |
WAUC non-rigid |
WAUC not sky |
WAUC sky |
WAUC s0-10 |
WAUC s10-40 |
WAUC s40+ |
| 95.235 | 95.516 | 51.056 | 95.762 | 73.467 | 97.042 | 81.571 | 95.305 | 94.185 | 97.936 | 93.954 | 76.110 |
| EPE total |
Fl total |
1px total |
|---|---|---|
| 1.613 | 6.123 | 15.281 |
| Corruption | EPE | Fl | 1px |
|---|---|---|---|
| Brightness | 0.150 | 0.404 | 1.887 |
| Contrast | 0.224 | 0.562 | 2.671 |
| Defocus Blur | 0.178 | 0.350 | 1.928 |
| Elastic Transform | 0.900 | 2.075 | 32.350 |
| Fog | 0.341 | 1.312 | 6.564 |
| Frost | 6.173 | 18.479 | 26.589 |
| Gaussian Blur | 0.193 | 0.412 | 2.135 |
| Gaussian Noise | 0.950 | 2.501 | 9.242 |
| Glass Blur | 0.233 | 0.454 | 2.194 |
| Impulse Noise | 1.913 | 6.344 | 16.543 |
| JPEG Compression | 2.521 | 12.883 | 33.420 |
| Motion Blur | 1.098 | 6.013 | 13.665 |
| Pixelate | 1.431 | 5.295 | 38.007 |
| Rain | 1.239 | 4.337 | 13.777 |
| Saturate | 0.139 | 0.324 | 1.573 |
| Shot Noise | 0.823 | 2.161 | 8.007 |
| Snow | 4.275 | 27.027 | 30.765 |
| Spatter | 6.693 | 20.029 | 28.765 |
| Speckle Noise | 0.949 | 2.821 | 10.158 |
| Zoom Blur | 1.849 | 8.670 | 25.388 |
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