TL;DR
WheelPoser is a real-time, IMU-based system designed specifically for wheelchair users, achieving accurate pose estimation with minimal sensors, enabling health monitoring, injury prevention, and improved interaction.
Contribution
The paper introduces a practical, sparse-IMU based pose estimation system tailored for wheelchair users, including a novel dataset and demonstrating significant accuracy improvements over prior methods.
Findings
Mean joint angle error of 14.30 degrees
Mean joint position error of 6.74 cm
More than three times better accuracy than similar sparse IMU systems
Abstract
Despite researchers having extensively studied various ways to track body pose on-the-go, most prior work does not take into account wheelchair users, leading to poor tracking performance. Wheelchair users could greatly benefit from this pose information to prevent injuries, monitor their health, identify environmental accessibility barriers, and interact with gaming and VR experiences. In this work, we present WheelPoser, a real-time pose estimation system specifically designed for wheelchair users. Our system uses only four strategically placed IMUs on the user's body and wheelchair, making it far more practical than prior systems using cameras and dense IMU arrays. WheelPoser is able to track a wheelchair user's pose with a mean joint angle error of 14.30 degrees and a mean joint position error of 6.74 cm, more than three times better than similar systems using sparse IMUs. To train…
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