tilted_surface_read — DRIVE `scoop` op

• Data kinds: image2d × scalar × scalar × scalar × scalar → table

• Call: import fullseye as fs; fs.ledger.tilted_surface_read(side, lip_row: 'float', lip_col: 'float', theta_deg: 'float', L_px: 'float', *, wall_px: 'float | None' = None, threshold: 'float' = 0.5, shell_px: 'float' = 0.0, smooth_px: 'int' = 1) -> 'dict' (to call the implementation directly, import scoop; scoop.tilted_surface_read(side, lip_row: 'float', lip_col: 'float', theta_deg: 'float', L_px: 'float', *, wall_px: 'float | None' = None, threshold: 'float' = 0.5, shell_px: 'float' = 0.0, smooth_px: 'int' = 1) -> 'dict'; from the registry, opsdrive.get("tilted_surface_read"))

Usage

Reads, from a side-view image (coverage) of the tilted container, the cross-sectional area of the powder remaining in it and the height of the flat surface at the back.

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

器の座標: 口(lip_row, lip_col、画素の端が整数)を原点に、床に沿って奥へ x(口を下げて θ 傾けた床 = 画像の右上がり)、床に垂直に y。0 ≤ x ≤ L_px・0 ≤ y ≤ wall_px(None = L_px)の中の被覆率の和が断面積 [px²] (口の外の流れは数えない)。粒の側面像の輪郭は粒の外側の包絡なので、自由表面に沿って厚さ約 1 粒半径の殻が余分に入る —— shell_px(粒の半径 [px] を渡す)× 自由表面の長さ(器の中の各列の粉面を smooth_px 列で移動平均した折れ線の長さ)を引いた area_corrected も返す。奥の平らな面の高さ plateau_px = 器の後ろ半分の粉面の床からの高さの中央値(楔の模型ではここは θ < θ_b の間変わらない; 実際の層は流れて薄くなる —— PoC で見る)。

返り: area_px, area_corrected, surface_len_px, plateau_px(後ろ半分に粉面が無ければ None)。Raises ValueError: 被覆率でない / 器の中が空 / 引数の範囲。

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 · two_view_volume · scoop_volume_read · scoop_count · scoop_image_limit · tilt_wedge_retained

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

tilted_surface_read — DRIVE scoop op