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- W3103748072 abstract "We present a method to improve the accuracy of a foot-mounted, zero-velocity-aided inertial navigation system (INS) by varying estimator parameters based on a real-time classification of motion type. We train a support vector machine (SVM) classifier using inertial data recorded by a single foot-mounted sensor to differentiate between six motion types (walking, jogging, running, sprinting, crouch-walking, and ladder-climbing) and report mean test classification accuracy of over 90% on a dataset with five different subjects. From these motion types, we select two of the most common (walking and running), and describe a method to compute optimal zero-velocity detection parameters tailored to both a specific user and motion type by maximizing the detector F-score. By combining the motion classifier with a set of optimal detection parameters, we show how we can reduce INS position error during mixed walking and running motion. We evaluate our adaptive system on a total of 5.9 km of indoor pedestrian navigation performed by five different subjects moving along a 130 m path with surveyed ground truth markers." @default.
- W3103748072 created "2020-11-23" @default.
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- W3103748072 date "2017-09-01" @default.
- W3103748072 modified "2023-10-16" @default.
- W3103748072 title "Improving foot-mounted inertial navigation through real-time motion classification" @default.
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- W3103748072 doi "https://doi.org/10.1109/ipin.2017.8115947" @default.
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