Segmentation desk · 2026-11-02
Paris 4 fit check exposes off-by-one winding errors
A community test of extra label points assigned by spiralfiteval reported seven neighbouring-winding errors in 261 controlled cases on Paris 4 fits. The test cut small holes near labels where two scorers agreed, creating a known comparison rather than treating the fitted surface itself as ground truth. Errors were reported where labels lay 6.6 to 10 voxels from the sheet, mostly beside larger holes. The author could not independently verify the extra points against CT because the fitted sheets were displaced from the papyrus. Coverage was limited to the tested fits and depth range; this is not a general accuracy benchmark.