shot_descriptor — 3D `feature_register` op

• Data kinds: points × normals → descriptor

• Call: import feat_shot; feat_shot.shot_descriptor(points, normals, kp_idx, tree, radius, n_azim=8, n_elev=2, n_rad=2, n_cos=11) (or ops3d.get("shot_descriptor"))

Usage

The SHOT descriptor (Tombari 2010). It builds a local reference frame at each keypoint and takes a spherical support.

Background guides (the physics and conventions behind this op)

• blas_threads_and_memory — 行列分解が遅い理由の知識 — BLAS スレッド・キャッシュ・メモリ配置

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)

• feature_register — py -3.11 examples_3d/feature_register.py

Ops the type connects to (they accept `descriptor` as input)

fuse_to_voxel · shape_distance

Same category (`feature_register`)

harris3d_keypoints · iss_keypoints · compute_fpfh · register_spin · register_fpfh · register_shot

*Provenance: feat_shot.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

shot_descriptor — 3D feature_register op