register_cross — 3D fusion op

Data kinds: any × anypose

Call: import fullseye as fs; fs.ledger.register_cross(src, src_kind, dst, dst_kind, method='fpfh', samples=15000, **kw) (to call the implementation directly, import fuse3d; fuse3d.register_cross(src, src_kind, dst, dst_kind, method='fpfh', samples=15000, **kw); from the registry, ops3d.get("register_cross"))

Usage

Rigid registration between structures of different kinds. Convert both to point clouds → a registrar (fpfh = large rotations / icp = needs a coarse init).

> The detailed description below is the original text — the summary and the headings are translated.

例: register_cross((verts,faces),"mesh", scan_pts,"points") で CAD↔スキャン整合。返り値 (R, t)。

手順: `to_points(src, src_kind, samples, **kw)`to_points(dst, dst_kind,

samples, **kw)` で両者を点群にし、method` で登録器を選ぶ。

• `"fpfh"(既定): feat_fpfh.register_fpfh(ps, pd)` を既定パラメータで呼ぶ

(FPFH 記述子 + RANSAC、初期姿勢不要、大回転・部分重なりに対応)。

• `"icp": match3d.icp_point2point_3d(ps, pd, iters=50)`(最近傍対応 +

Kabsch)。初期姿勢の引数は渡さないので、`srcdst` に近い(粗く

合っている)ことが前提。

• それ以外は `ValueError`。

返り値: `(R, t)R(3, 3)t(3,)` の numpy 配列(torch tensor

は CPU の numpy に変換して返す)。慣習は `dst ≈ src @ R.T + t`。

注意:

• `**kw は **両方の** to_points に同じものが渡る("depth"`fx, fy, cx,

cy`"voxel"iso` を片側だけに与えることはできない)。

• `samples"mesh"` のサンプル数(既定 15000)。点群の個数・形は検査しない。

• 座標系の違い(`to_points 参照: voxel は (z, y, x)` index、depth はカメラ

`(x, y, z)`)は吸収しない。

• 精度を締めるには fpfh の結果を初期値に `icp_point2point_3d` を直接呼ぶ。

Background guides (the physics and conventions behind this op)

depth_sensors — 深度センサの知識 — 測距原理・実機の値・欠測の出方

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)

transforms_reprpy -3.11 examples_3d/transforms_repr.py

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

fuse_to_voxel · pose_error · bundle_adjust · mean_reprojection_error · optimize_pose_graph · relative_pose · mean_edge_error · rotation_translation_error

Same category (fusion)

fuse_to_voxel


*Provenance: fuse3d.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.