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Modelling and Estimation of Human Walking Gait for Physical Human-Robot Interaction

Author
Abstract
An approach to model and estimate human walking kinematics in real-time for Physical Human-Robot Interaction is presented. The human gait velocity along the forward and vertical direction of motion is modelled according to the Yoyo-model. We designed an Extended Kalman Filter (EKF) algorithm to estimate the frequency, bias and trigonometric state of a biased sinusoidal signal, from which the kinematic parameters of the Yoyo-model can be extracted. Quality and robustness of the estimation are improved by opportune filtering based on heuristics. The approach is successfully evaluated on a real dataset of walking humans, including complex trajectories and changing step frequency over time
Year of Publication
2021
Conference Name
2021 Aerial Robotic Systems Physically Interacting with the Environment (AIRPHARO)
Date Published
2021/10