Toward an Affordable and User-Friendly Visual Motion Capture System - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Conference Papers Year : 2014

Toward an Affordable and User-Friendly Visual Motion Capture System

Abstract

The present study aims at designing and evaluating a low-cost, simple and portable system for arm joint angle estimation during grasping-like motions. The system is based on a single RGB-D camera and three customized markers. The automatically detected and tracked marker positions were used as inputs to an offline inverse kinematic process based on bio-mechanical constraints to reduce noise effect and handle marker occlusion. The method was validated on 4 subjects with different motions. The joint angles were estimated both with the proposed low-cost system and, a stereophotogrammetric system. Comparative analysis shows good accuracy with high correlation coefficient (r= 0.92) and low average RMS error (3.8 deg).
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Dates and versions

lirmm-01006396 , version 1 (16-06-2014)

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Vincent Bonnet, Nahéma Sylla, Andrea Cherubini, Alejandro González, Christine Azevedo Coste, et al.. Toward an Affordable and User-Friendly Visual Motion Capture System. EMBC: Engineering in Medicine and Biology Conference, Aug 2014, Chicago, Illinois, United States. pp.4985-4988, ⟨10.1109/EMBC.2014.6944410⟩. ⟨lirmm-01006396⟩
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