probe op• Data kinds: voxel → table
• Call: import fullseye as fs; fs.ledger.vol_edge_probe(vol, p0, p1, sigma=1.0, threshold=0.1, spacing=None, polarity='all') (implementation को सीधे call करना हो तो import volprobe; volprobe.vol_edge_probe(vol, p0, p1, sigma=1.0, threshold=0.1, spacing=None, polarity='all'), registry से लेना हो तो ops3d.get("vol_edge_probe"))
probe p0 -> p1 के साथ sub-sample edges।
> नीचे का विस्तृत विवरण मूल text में है — सारांश और headings का अनुवाद हो चुका है।
The profile (default sampling of vol_profile_line) is smoothed with a 1-D Gaussian of sigma samples, differentiated with respect to the physical abscissa t_mm, and local extrema of the derivative magnitude are taken as edges. Each is refined to sub-sample precision by a 3-point parabolic fit; plateau twins closer than 1.5 samples are merged.
threshold is an absolute derivative amplitude in intensity per physical distance unit (per mm when spacing is given, per voxel otherwise) — edges with |d gray / d t| < threshold at the peak are discarded. It is *not* relative to the profile's own maximum: choose it for your data's intensity range and spacing.
polarity selects "positive" (rising, dark -> bright along the probe), "negative" (falling) or "all".
Returns a list of dicts ordered by distance, each::
{"t_mm": physical distance of the edge from p0,
"position": (z, y, x) interpolated voxel coordinate of the edge,
"amplitude": |d gray / d t| at the peak (intensity / distance unit),
"polarity": +1 rising, -1 falling}
Raises ValueError on the same malformed inputs as vol_profile_line, a negative / non-finite sigma or threshold, or an unknown polarity.
• Sample data catalog (DL URL / license) — 2-D के लिए skimage.data (BSD/public) + synthetic, 3-D के लिए real data sources (Stanford/PDS आदि) के DL URL।
• Operators का स्रोत और संदर्भ — इस op family के मूल research/methods के स्रोत।
• wall_thickness_probe — py -3.11 examples_3d/wall_thickness_probe.py
table को input के रूप में लेते हैं)fuse_to_voxel · mesh_select_lod
probe)vol_profile_line · vol_wall_thickness
*Provenance: volprobe.py — 3D operator registry. यह per-op note tools/opdocs.py md से अपने-आप generate होता है (हाथ से edit न करें)।*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.