flow_speed — REPRCONV `flow` op

• Data kinds: flow_scattered → signal

• Call: import reprconv; reprconv.flow_speed(flow) (or opsreprconv.get("flow_speed"))

Usage

Scattered flow `(N,3) → a speed signal (N,). The exit from scattered flow`.

> The detailed description below is the original text — the summary and the headings are translated.

一方向(向きを捨てる)。密フローを渡すと fail-closed —— 同じ `flow`

という型名の下に別物が 2 つ入っているため、受け側で必ず選ばせる。

Args:

flow: (N, 3) の変位ベクトル場。

Returns:

(N,) float64。

Raises:

ValueError: 散在フローでない / 非有限。

References (sample data, literature)

• 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.

Runnable examples (verified samples that actually call this op)

• representation_conversion — py -3.11 examples/representation_conversion.py

• representation_roundtrip — py -3.11 examples/representation_roundtrip.py

Ops the type connects to (they accept `signal` as input)

—

Same category (`flow`)

flow_magnitude · flow_to_rgbimage · flow_apply

*Provenance: reprconv.py — REPRCONV operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

flow_speed — REPRCONV flow op