measure op• 資料種類:video → pairs
• 呼叫: import fullseye as fs; fs.ledger.displacement_series(video, f_lo, f_hi, fps, scales: 'int' = 4, orientations: 'int' = 4) -> 'np.ndarray'(要直接呼叫實作,import motionmag; motionmag.displacement_series(video, f_lo, f_hi, fps, scales: 'int' = 4, orientations: 'int' = 4) -> 'np.ndarray';從台帳取用則 opsmotionmag.get("displacement_series"))
整影格位移波形 -> (dx, dy) 的 (T, 2) 陣列。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
The contrast-weighted spatial mean of phase_displacement, i.e. the rigid-body motion of the scene in pixels, one row per frame. This is the trace to plot, or to feed to dsp.spectrum to read off the resonant frequency — a vibration waveform recovered from a camera.
Weights are the same |z|^2 contrast the field solve uses, restricted to the pixels marked valid, so blank regions do not drag the average towards zero. A clip with no valid pixel anywhere (a constant image) returns exact zeros rather than a division by zero.
Sub-pixel accuracy and its cliff inherit from phase_displacement; measured on the 64x64x64 / 8 px / 4 Hz synthetic, a true 0.5 px amplitude is recovered as 0.50000000 px (6.7e-16 relative), and a true 0.001 px amplitude as 0.00100000 px (8.7e-15).
• 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。
• 演算法的正典(作者、年份)與用途見上面的族使用指南。
• motion_magnification — py -3.11 examples/motion_magnification.py
• poc_motion_magnification — py -3.11 examples/poc_motion_magnification.py
• quaternion_monogenic — py -3.11 examples/quaternion_monogenic.py
pairs 作為輸入)—
measure)*Provenance: motionmag.py — MOTIONMAG 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.