Core clinical engineering and protocols for Motion Artifact Cancellation.
When an ambulatory patient walks, runs, or gestures, inertial movement shifts the sensor-skin interface. This produces electrical capacitance changes and optical path fluctuations that are orders of magnitude larger than physiological heart signals.
WearablesIoMT synchronizes high-frequency 6-axis IMU data with raw biosignals. Adaptive RLS filters model the mechanical movement noise transfer function and subtract it from the optical and electrical channels in real time, yielding clean waveforms even during physical exertion.