walkterrain op• 資料種類:depth → mask
• 呼叫: import fullseye as fs; fs.ledger.detect_obstacles(grid, cell: 'float' = 0.05, clearance: 'float' = 0.12, ground: 'str' = 'plane', ground_radius: 'float' = 0.4, trim: 'float' = 0.3, min_area: 'float' = 0.01, extent=None)(要直接呼叫實作,import terrain; terrain.detect_obstacles(grid, cell: 'float' = 0.05, clearance: 'float' = 0.12, ground: 'str' = 'plane', ground_radius: 'float' = 0.4, trim: 'float' = 0.3, min_area: 'float' = 0.01, extent=None);從台帳取用則 opsdrive.get("detect_obstacles"))
• 經台帳呼叫的回傳值: fullseye.ledger.detect_obstacles(...) 只回傳宣告的 out 型別 mask 的值(底層函式還會回傳輔助資訊)。需要被捨棄的部分時,請用 fullseye.ledger.detect_obstacles.raw(...),或直接呼叫 terrain.detect_obstacles。
• GPU:無(僅 CPU 參考實作)
分割出高出可行走地面超過 *clearance* 的格。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
The ground model isolates obstacles from a sloped surface: ground='plane' (default) fits a robust ground_plane (best when the ground is planar — flat or ramp); ground='opening' uses the morphological ground_surface envelope (best for rough/curved terrain); or pass a precomputed ground height array. So a ramp is not an obstacle but a box, curb, or rock on it is. Returns (mask, obstacles): a boolean obstacle mask and a list of per-obstacle dicts sorted largest-first, each with area_cells / area (m²) / height (peak rise above ground) / centroid_cell (row, col) / bbox_cells (i0, j0, i1, j1), plus centroid_xy in world units when *extent* (from elevation_map) is given. Blobs smaller than *min_area* (m²) are dropped as noise.
★ground_radius は ground='opening' のときだけ読まれ、trim は 'plane' のときだけ。空の入力(grid が 0 要素)は空の mask と空の listを返す(理由: 観測の無い地図には障害物も無く、形だけを保つ)。
• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。
• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。
• 演算法的正典(作者、年份)與用途見上面的族使用指南。
• walking_ops_tour — py -3.11 examples/walking_ops_tour.py
mask 作為輸入)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 · ground_plane · fuse_elevation · roughness_map
*Provenance: terrain.py — DRIVE 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.