polish op• Data kinds: image2d × scalar × scalar × scalar × scalar × scalar → table
• Call: import fullseye as fs; fs.ledger.winkler_polish_run(z, pressure: 'float', k_w: 'float', k_p: 'float', speed: 'float', duration: 'float', dt=None, n_record: 'int' = 50) -> 'dict' (to call the implementation directly, import polish; polish.winkler_polish_run(z, pressure: 'float', k_w: 'float', k_p: 'float', speed: 'float', duration: 'float', dt=None, n_record: 'int' = 50) -> 'dict'; from the registry, opsdrive.get("winkler_polish_run"))
Time evolution of the surface height map z when polished by an elastic-foundation (Winkler) pad pressed with mean pressure pressure at relative speed speed. At each step the pad surface height z_t is solved from Σ k_w max(0, z − z_t) = N p̄ (only contacting regions bear pressure), then by the Preston equation z ← z − k_p v k_w max(0, z − z_t) Δt (explicit scheme, c Δt ≤ 0.01, c = k_p k_w v). Returns z (final), t, rms (rms deviation from the mean, no form removal), mean and contact (contact fraction) at n_record points, rate_full_contact = c (while the whole surface is in contact, rms decays as exp(−c t) — derived; this function does not use it), dt, steps. Raises ValueError: z checks, numeric checks, c Δt > 0.01.
• 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_polish_wipe_measure — py -3.11 examples/poc_polish_wipe_measure.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
polish)preston_pressure_kernel · preston_removal_map · preston_track_profile · wipe_band_width · raster_wipe_area · coat_image · coat_thickness_from_image · wipe_coverage
*Provenance: polish.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.