synth op• Data kinds: none → volseq (an op determined by its arguments alone — it takes no image or data input)
• Call: import fullseye as fs; fs.ledger.volseq_synth_beating(shape=(24, 32, 32), n_frames: 'int' = 24, period: 'float' = 12.0, amplitude: 'float' = 2.0, radius: 'float' = 8.0, thickness: 'float' = 1.5, noise: 'float' = 0.0, seed: 'int' = 0) -> 'np.ndarray' (to call the implementation directly, import live4d; live4d.volseq_synth_beating(shape=(24, 32, 32), n_frames: 'int' = 24, period: 'float' = 12.0, amplitude: 'float' = 2.0, radius: 'float' = 8.0, thickness: 'float' = 1.5, noise: 'float' = 0.0, seed: 'int' = 0) -> 'np.ndarray'; from the registry, opslive4d.get("volseq_synth_beating"))
> This operator's description has not been translated yet. The original text follows as it is.
既知の半径則で拍動する殻の体積時系列 `(T, Z, Y, X)(volseq`、値は [0, 1] + 雑音)。
半径は `r(t) = radius + amplitude · sin(2π t / period)`(t はフレーム番号)、殻は中心からの距離 d に
対する `exp(−(d − r(t))² / (2 · thickness²))`。鼓動する心筋や収縮する細胞の最小モデルで、
真値 = 半径則そのものなので、増幅・補間・描画の各 op を「半径の読み取り」で数値検証できる。
`noise > 0 なら正規雑音(標準偏差)を足す(seed` で再現)。
>>> s = volseq_synth_beating((16, 24, 24), n_frames=12, period=12.0, amplitude=1.0)
>>> s.shape
(12, 16, 24, 24)
• 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_live4d — py -3.11 examples/poc_live4d.py
volseq as input)volseq_mip_video · volseq_cut_video · volseq_speed · volseq_pathline_render · volseq_pathline_orbit · volseq_interpolate_flow · volseq_magnify_motion · volseq_render_orbit
synth)*Provenance: live4d.py — LIVE4D 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.