Action-Video (.MP4) vs External .FIT/.GPX Clock-Offset Solver via IMU/Optical-Flow Correlation

Deterministic FFT cross-correlation between camera IMU/global-motion yaw-rate omega(t) and GNSS track heading-rate d(psi)/dt + sub-sample parabolic peak interpolator + lossless QuickTime 'creation_time' restamper engine (.mp4, .fit, .gpx) built for Garmin Edge / Fenix, Wahoo, DJI Osmo Action, Insta360 Ace Pro — zero-upload ephemeral Wasm RAM execution.

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Cloudflare Ephemeral Wasm RAM · 0% Retention

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