estimate_flow — 3D motion_segment op

• Data kinds: points × points → flow_scattered

• Call: import motion_seg3d; motion_seg3d.estimate_flow(pts0, pts1) -> 'np.ndarray' (or ops3d.get("estimate_flow"))

Usage

The 3-D displacement vector field (N, 3) from each point of pts0 to its nearest neighbour in pts1 (nearest-neighbour flow).

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)

• motion_scene — py -3.11 examples_3d/motion_scene.py

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

fuse_to_voxel

Same category (motion_segment)

segment_rigid_motions · fit_rigid

*Provenance: motion_seg3d.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.