two_view_volume — DRIVE `scoop` op

• Data kinds: image2d × image2d × scalar → table

• Call: import fullseye as fs; fs.ledger.two_view_volume(side_a, side_b, pitch: 'float', *, threshold: 'float' = 0.5) -> 'dict' (to call the implementation directly, import scoop; scoop.two_view_volume(side_a, side_b, pitch: 'float', *, threshold: 'float' = 0.5) -> 'dict'; from the registry, opsdrive.get("two_view_volume"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

直交する 2 方向の側面像から体積 —— 行ごとの 2 つの弦 `W_a・W_b` を軸とする楕円の和

`V = Σ f π (W_a/2)(W_b/2) pitch³`。

断面が楕円(軸対称でない山、縦長の盛り)なら厳密で、片方だけの回転体の仮定は楕円の扁平さの比で外れる(PoC で

1.6 : 1 の楕円錐が片方だと −38 % / +60 %)。行の満ち具合 `f`(平らな面が行の途中を横切る行、像 a で読む)で弦を

`W = w / f に直してから掛ける(幅の積は f²` で数え落とすため)。雑音は先に消す。2 枚は同じ高さの刻み(同じ行が

同じ高さ)であること。返り: `V、V_a / V_b(片方だけの回転体、Pappus)、ellipticity`(弦の比の中央値

max/min)。Raises `ValueError`: 行数が違う / 被覆率でない / 空。

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_powder_scoop_pour — py -3.11 examples/poc_powder_scoop_pour.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 (`scoop`)

spoon_bowl_volume · scoop_synth_side · revolution_volume_side · scoop_volume_read · scoop_count · scoop_image_limit · tilt_wedge_retained · tilt_pour_rate

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

two_view_volume — DRIVE scoop op