walkterrain op• データ種: depth → depth
• 呼び出し: import fullseye as fs; fs.ledger.ground_plane(grid, trim: 'float' = 0.3, iters: 'int' = 3) (実装を直接呼ぶなら import terrain; terrain.ground_plane(grid, trim: 'float' = 0.3, iters: 'int' = 3)、台帳から引くなら opsdrive.get("ground_plane"))
• GPU: なし(CPU 参照実装のみ)
Robust least-squares ground plane z = a·x + b·y + c per cell.
Fits a plane to the (filled) elevation, then re-fits a few times after trimming the highest-residual cells — the ones that rise above the ground and are therefore obstacles, not ground. Recovers a flat *or* tilted (ramp) ground exactly, with no boundary artefact, which is what obstacle detection wants when the walkable surface is planar. *trim* is the top residual fraction discarded each iteration.
空の入力(grid が 0 要素)は形を保った空の配列を返す(理由: 当てはめる高さが無く、形だけを保つ。観測が 3 セル未満の地図は nan の平面)。
• 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。
• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。
• walking_ops_tour — py -3.11 examples/walking_ops_tour.py
depth を入力に取れる)spin_from_marker_sequence · carla_transform_matrix · carla_pose_to_world · carla_camera_pose · carla_xy_yaw · carla_scene_load · town_chain · osm_parse
walkterrain)elevation_map · fill_gaps · elevation_traversability · foothold_score · ground_surface · detect_obstacles · fuse_elevation · roughness_map
*Provenance: terrain.py — DRIVE 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.