medial op• Data kinds: voxel × voxel → measurement
• Call: import fullseye as fs; fs.ledger.medial_match(vol_a, vol_b, w_topology=0.6, w_radius=0.4, n_bins=12) (to call the implementation directly, import medial; medial.medial_match(vol_a, vol_b, w_topology=0.6, w_radius=0.4, n_bins=12); from the registry, ops3d.get("medial_match"))
A coarse matching score between two voxel shapes based on their medial (topology + radius distribution). Returns [0,1].
> The detailed description below is the original text — the summary and the headings are translated.
骨格の位相記述子(端点/分岐/通常/孤立の割合)の距離と、medial 半径分布(内接半径の
ヒストグラム)の距離を重み付き合成し、類似度 = 1 - 距離 として返す。1 に近いほど似ている。
平行移動・回転(90 度)に対して概ね不変で、位相ベースの初期照合(粗いふるい)に使う。
Args:
vol_a, vol_b: バイナリ voxel(bool / 0-1 の 3D)。
w_topology: 位相距離の重み(既定 0.6)。
w_radius: 半径分布距離の重み(既定 0.4)。
n_bins: 半径ヒストグラムの bin 数。
Returns:
float: 類似スコア [0,1] (大きいほど類似)。
• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).
• Operator provenance and references — the sources of the research/methods this op family came from.
• medial_topology — py -3.11 examples_3d/medial_topology.py
measurement as input)vol_gaussian_psf · fuse_to_voxel · fresnel_reflectance · snell_angle
medial)distance_ridge · skeletonize_vol · medial_axis_points · topology_signature · skeleton_junctions3d · skeleton_endpoints3d · skeleton_prune3d · skeleton_branches3d
*Provenance: medial.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.