gait; gait analysis; gait recogntion; multiple sclerosis; range laser
Abstract :
[en] Capturing gait is useful for many applications, including video-surveillance and medical purposes. The most common sensors used to capture gait suffer from significant drawbacks. We have therefore designed a new low-cost and nonintrusive system to capture gait. Our system is able to track the feet on the horizontal plane in both the stance and the swing phases by combining measures of several range laser scanners. The number of sensors can be adjusted according to the target application specifications. The first issue addressed in this
work is the calibration: we have to know the precise location of the sensors in a plane, and their orientations. The second issue addressed is how to calculate feet coordinates from the distance profiles given by the sensors. Our method has proven to be robust and precise to measure gait abnormalities in various
medical conditions, especially neurological diseases (with a focus on multiple sclerosis).
Research Center/Unit :
INTELSIG
Disciplines :
Electrical & electronics engineering
Author, co-author :
Pierard, Sébastien ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Télécommunications
PHAN BA, Remy ; Centre Hospitalier Universitaire de Liège - CHU > Neurologie Sart Tilman
Van Droogenbroeck, Marc ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Télécommunications
Belachew, Shibeshih ; Université de Liège - ULiège > Département des sciences cliniques > Neurologie
Language :
English
Title :
A new low-cost and non-intrusive feet tracker
Publication date :
November 2011
Event name :
Workshop on Circuits, Systems and Signal Processing (ProRISC)
Event place :
Veldhoven, Netherlands
Event date :
11-2011
Audience :
International
Main work title :
Workshop on Circuits, Systems and Signal Processing (ProRISC)