slice_thickness_profile — DRIVE `cutting` op

• Data kinds: rgb × scalar × scalar → table

• Call: import fullseye as fs; fs.ledger.slice_thickness_profile(image, px_per_mm: 'float', board_row: 'float', z_band=None, win: 'int' = 4) -> 'dict' (to call the implementation directly, import cutting; cutting.slice_thickness_profile(image, px_per_mm: 'float', board_row: 'float', z_band=None, win: 'int' = 4) -> 'dict'; from the registry, opsdrive.get("slice_thickness_profile"))

Usage

In the image along the cutting edge, finds per row the subpixel positions of the "food item end face" and the "flat face of the blade"; the difference = slice thickness (mm).

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

各画素を 3 色(背景・食材・刃)の割合に線形分解する(彩度 R − B と輝度の 2 チャンネル + 和 = 1)。背景の割合は端面で 1 → 0 に落ちる純粋な段、刃の割合は刃の面で 0 → 1 に上がる純粋な段なので、それぞれの窓の中の和が縁の位置になる(被覆率法)。ぼけは割合の和を変えないので、窓をぼけの推定(端面の段の 2 次モーメント σ)に合わせて ±(3σ + 1) px に広げれば偏らない。切片が窓より薄くても、2 つの段は別々の割合なので干渉しない。参照の色は行ごとに局所で取る(照明の左右勾配に追従)。刃の判定は「刃の輝度が背景と食材の間のどこにあるか」の比で行い、明るさの倍率(gain)に依らない。

端面と刃の面はそれぞれ直線に乗るはず: 1.5 px より外れた行を外し、外れが 3 割を超えたら ValueError(黙って間違えない)。z_band: (z_lo, z_hi) mm で使う行を絞る(片刃の切刃部を外すのに使う)。返り値: z_mm、thickness_mm(行ごと)、mean_mm、lean_deg(刃の面の鉛直からの傾き、atan2)、face_line、end_line、n_rows、n_rejected、blur_px。

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)

• poc_food_cutting_measure — py -3.11 examples/poc_food_cutting_measure.py

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

course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same

Same category (`cutting`)

cutting_scene · cutting_face_render · cutting_edge_render · cutting_episode_synth · cutting_wrist_mjcf · knife_edge_track · cut_depth_from_side · cut_surface_roughness

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

slice_thickness_profile — DRIVE cutting op