match_sh_descriptor — 3D describe op

• Data kinds: voxel × voxel → measurement

• Call: import match3d; match3d.match_sh_descriptor(a, b, L=8, nradii=12, device='cpu') (or ops3d.get("match_sh_descriptor"))

• GPU: this op has a GPU path (device="cuda")

Usage

The cosine similarity between two SH descriptors (rotation-invariant shape matching). Closer to 1 means a more similar shape. The voxel × SH column.

References (sample data, literature)

• 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.

Runnable examples (verified samples that actually call this op)

• sh_descriptor_retrieval — py -3.11 examples_3d/sh_descriptor_retrieval.py

• shape_descriptor — py -3.11 examples_3d/shape_descriptor.py

Ops the type connects to (they accept measurement as input)

vol_gaussian_psf · fuse_to_voxel · fresnel_reflectance · snell_angle

Same category (describe)

sh_descriptor

*Provenance: match3d.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.