Comparison of a Vision-Based System and a Wearable Inertial-Based System for a Quantitative Analysis and Calculation of Spatio-Temporal Parameters

摘要

Clinical gait analysis provides an evaluation tool that allows clinicians to assess the abnormality of gait in patients. There are currently specialized systems to detect gait events and calculate spatio-temporal parameters of human gait, which are accurate and redundant. These systems are expensive and are limited to very controlled settings. As alternative, a wearable inertial system and a single depth-camera system are proposed in order to detect gait events, and then, estimate spatial and temporal gait parameters. An experimental protocol is detailed in this paper using both systems in order to compare their performance with respect to a specialized human gait system for two age groups, elder and youth. This research attempts to contribute to the development of clinical decision support technologies by combining vision systems and wearable sensors.