deformation_to_points — REPRCONV `algebra` op

• Data kinds: deformation → points

• Call: import fullseye as fs; fs.ledger.deformation_to_points(deformation) (to call the implementation directly, import reprconv; reprconv.deformation_to_points(deformation); from the registry, opsreprconv.get("deformation_to_points"))

Usage

A TPS deformation → its control points (N,3). The exit from deformation.

Extracts ctrl from the dict returned by tps_fit. It is for viewing "where this warp is anchored" in the point-cloud vocabulary, and is one-way (the weights w and the affine term a cannot be recovered from the control points alone).

Args:

deformation: dict with ctrl (the return of tps_fit).

Returns:

(N, 3) float64.

Raises:

ValueError: not a dict / no ctrl / bad shape / non-finite.

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.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• representation_conversion — py -3.11 examples/representation_conversion.py

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

points_zyx_to_keypoints_uv · points_to_position · select_points · flow_apply · points_to_gaussians

Same category (`algebra`)

angle_to_matrix · matrix_to_angle · rot_scale_to_matrix · matrix_to_rot_scale · shift_to_vector · vector_to_shift · cscalar_to_polar · polar_to_cscalar

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

deformation_to_points — REPRCONV algebra op