inflate — 3D occupancy op

Data kinds: voxelvoxel

Call: import fullseye as fs; fs.ledger.inflate(occupancy, radius, voxel_size=1.0) (to call the implementation directly, import occupancy; occupancy.inflate(occupancy, radius, voxel_size=1.0); from the registry, ops3d.get("inflate"))

Usage

A bool occupancy grid with the obstacles inflated by `radius` (in world units) — i.e. ESDF <= radius counts as occupied.

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

planner の安全マージン: 点ロボットが膨張格子上で衝突回避すれば、半径 radius の実

ロボットが障害物から離隔を保つ(configuration-space obstacle)。ESDF は外で正の

最近占有距離なので、`ESDF<=radius` は「占有(負)∪ 障害物から radius 以内の自由」を

捕らえる。radius を増やすと単調に占有が増える(下流テストの GT)。

Raises ValueError for radius<0 or voxel_size<=0 (both validated up-front, before

the radius==0 / empty-occupancy short-circuit — otherwise an invalid voxel_size

slips through unchecked when esdf is never reached).

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)

sensor_segpy -3.11 examples_3d/sensor_seg.py

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

voxel_to_mips · voxel_to_mesh · signed_distance_field · to_points · sobel3d · hessian3d · curvature_maps · edt_jfa

Same category (occupancy)

occupancy_grid · esdf · query_distance


*Provenance: occupancy.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.