signed_distance_field — 3D `transform` op

• Data kinds: voxel → sdf

• Call: import match3d; match3d.signed_distance_field(vol, device='cpu', iso=0.5) (or ops3d.get("signed_distance_field"))

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

Usage

Occupancy/density voxels → a signed distance field SDF (inside < 0, outside > 0). edt_jfa applied to both sides.

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_repr — py -3.11 examples_3d/transforms_repr.py

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

sdf_to_occupancy · fuse_to_voxel · integrate · extract_surface_points · query_distance · sdf_union · sdf_intersect · sdf_subtract

Same category (`transform`)

points_to_voxel · gaussians_to_voxel · mesh_to_voxel · mesh_to_points · depth_to_points · voxel_to_mips · voxel_to_mesh · tsdf_from_depth

*Provenance: match3d.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

signed_distance_field — 3D transform op