probe op• Datenarten: voxel → table
• Aufruf: import fullseye as fs; fs.ledger.vol_edge_probe(vol, p0, p1, sigma=1.0, threshold=0.1, spacing=None, polarity='all') (die Implementierung direkt: import volprobe; volprobe.vol_edge_probe(vol, p0, p1, sigma=1.0, threshold=0.1, spacing=None, polarity='all'); aus dem Register: ops3d.get("vol_edge_probe"))
Kanten entlang der Sonde `p0 -> p1` subsample-genau bestimmen.
> Die ausführliche Beschreibung unten ist der Originaltext — Zusammenfassung und Überschriften sind übersetzt.
The profile (default sampling of :func: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
:func:vol_profile_line, a negative / non-finite `sigma` or
`threshold, or an unknown polarity`.
• Katalog der Beispieldaten (Download-URLs / Lizenzen) — 2-D nutzt skimage.data (BSD/Public Domain) plus synthetische Bilder, 3-D nennt Download-URLs echter Datenquellen (Stanford, PDS, …).
• Herkunft und Literatur der Operatoren — die Quellen der Forschung/Verfahren, auf denen diese Operatorfamilie beruht.
• wall_thickness_probe — py -3.11 examples_3d/wall_thickness_probe.py
table als Eingabe)fuse_to_voxel · mesh_select_lod
probe)vol_profile_line · vol_wall_thickness
*Provenance: volprobe.py — 3D Operator-Registry. Diese Notiz wird von tools/opdocs.py md erzeugt (nicht von Hand bearbeiten).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.