tac_contact_mask — 2D tactile op

• 資料種類:image → region

• 呼叫:fullseye.apply(img, "tac_contact_mask", a=0.5, b=0.5)(2-D 的模型是一張圖 + 兩個純量旋鈕 a,b∈[0,1])

用法

> 該運算子的說明尚無譯文,以下照原文給出。

Contact region of a tactile frame by pseudo-reference background

subtraction: `dev = |v - G_sigma(v)| with sigma = max(2, min(H,W)/6)`

(the low-frequency envelope stands in for the undeformed reference frame),

thresholded at `thr = 0.005 + 0.145*a` gray levels, then cleaned with

`round(3*b)` iterations of binary opening followed by binary closing

(3x3, 8-connected). `a = deviation threshold (sensitivity), b` =

morphological cleanup strength. Returns a BINARY 0/1 float64 region of the

input HxW; a perfectly flat (constant) frame has zero deviation everywhere

and therefore yields an EMPTY mask.

參考(範例資料・文獻)

• 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。

可執行的範例(實際呼叫該運算子並已驗證的樣例)

• sim2real_and_alife — py -3.11 examples/sim2real_and_alife.py

型別可銜接的下一個運算子(可接受 region 作為輸入)

identity · reg_erode · reg_dilate · reg_open · reg_close · fill_holes · select_largest · remove_small

同類別(tactile)

tac_height_from_shading · tac_surface_normal · tac_pressure_proxy · tac_shear_field

*Provenance: ops.py — 2D 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.