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"))
Volume from side images in 2 orthogonal directions — sum of ellipses whose axes are the 2 chords W_a and W_b of each row, V = Σ f π (W_a/2)(W_b/2) pitch³.
> The detailed description below is the original text — the summary and the headings are translated.
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。
• 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.
• poc_powder_scoop_pour — py -3.11 examples/poc_powder_scoop_pour.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
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).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.