STRIDE LENGTH ESTIMATION AND CALIBRATION AT THE WRIST

Embodiments are disclosed for stride length estimation and calibration at the wrist. In some embodiments, a method comprises: obtaining sensor data from a wearable device worn on a wrist of a user; deriving features from the sensor data; estimating a form-based stride length using an estimation mode...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Etezadi-Amoli, Maryam, Blanco, Gabriel A, Ullal, Adeeti V, Jayaraman Raghuram, Karthik, Gilmore, Allison L, Huet, Lucie A, Fineman, Richard A
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS GYROSCOPIC INSTRUMENTS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MEDICAL OR VETERINARY SCIENCE NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURGERY SURVEYING TESTING
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Beschreibung
Zusammenfassung:	Embodiments are disclosed for stride length estimation and calibration at the wrist. In some embodiments, a method comprises: obtaining sensor data from a wearable device worn on a wrist of a user; deriving features from the sensor data; estimating a form-based stride length using an estimation model that takes the features and user height as input; and calibrating the form-based stride length. In other embodiments, user cadence and speed are used to estimate speed-based stride length which, upon certain conditions, is blended with the form-based stride length to get a final estimated stride length of the user.