measure op• Data kinds: video → pairs
• Call: import fullseye as fs; fs.ledger.displacement_series(video, f_lo, f_hi, fps, scales: 'int' = 4, orientations: 'int' = 4) -> 'np.ndarray' (implementation को सीधे call करना हो तो import motionmag; motionmag.displacement_series(video, f_lo, f_hi, fps, scales: 'int' = 4, orientations: 'int' = 4) -> 'np.ndarray', registry से लेना हो तो opsmotionmag.get("displacement_series"))
पूरे frame का displacement waveform -> (dx, dy) का (T, 2) array।
> नीचे का विस्तृत विवरण मूल text में है — सारांश और headings का अनुवाद हो चुका है।
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).
• motion_magnification family guide
• 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।
• Algorithm का मानक स्रोत (लेखक, वर्ष) और उपयोग ऊपर की family usage guide में दिए गए हैं।
• 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 को input के रूप में लेते हैं)—
measure)*Provenance: motionmag.py — MOTIONMAG 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.