fullseye

vol_local_maxima — 3D feature op

• データ種: voxel → points
• 呼び出し: import fullseye as fs; fs.ledger.vol_local_maxima(vol, min_distance, threshold=None) (実装を直接呼ぶなら import volops; volops.vol_local_maxima(vol, min_distance, threshold=None)、台帳から引くなら ops3d.get("vol_local_maxima"))

使い方

3-D local-maxima (peak) detection.

A voxel is a peak if it equals the maximum over a cubic neighbourhood of half-width min_distance (side 2*min_distance + 1) and that neighbourhood is not flat (its max strictly exceeds its min, so a constant region yields no peaks). Pass threshold to additionally require vol >= threshold (drop weak peaks in noise).

Returns an (N, 3) int array of (z, y, x) peak coordinates. Uses only scipy.ndimage.maximum_filter / minimum_filter (no skimage).

参考(サンプルデータ・文献)

• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。
• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• molecule_atom_count — py -3.11 examples_3d/molecule_atom_count.py
• vessel_metrology — py -3.11 examples_3d/vessel_metrology.py

型が繋がる次の op(points を入力に取れる)

points_to_voxel · gaussians_to_voxel · estimate_point_normals · to_points · match_points_ncc · match_pca · moment_axes · icp_point2point_3d

同カテゴリ(feature)

sobel3d · hessian3d · curvature_maps · edt_jfa · vol_frangi · vol_sato · vol_hessian_blobness · vol_gradient_magnitude

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Provenance: volops.py — 3D operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.

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