Title :
Design of a reliable processing pipeline for the non-intrusive measurement of feet trajectories with lasers
Author :
Pierard, S. ; Azrour, S. ; Van Droogenbroeck, M.
Author_Institution :
INTELSIG Lab., Univ. of Liege, Liege, Belgium
Abstract :
Reliable measurements of feet trajectories are needed in some applications, such as biomedical applications. This paper describes the data processing pipeline used in GAIMS, which is a non-intrusive system that measures feet trajectories based on multiple range laser scanners. Our processing pipeline relies on a new tracking paradigm, and it is based on two innovative algorithms: the first algorithm localizes the feet directly from the observed point cloud without any clustering, and the other algorithm identifies the feet. After reviewing the various types of noise affecting the point cloud, this paper explains the limitations of the classical processing approach and gives an overview of our new pipeline. The effectiveness of the proposed approach is established by discussing the results that have been obtained in several studies based on GAIMS.
Keywords :
computerised instrumentation; gait analysis; optical scanners; pipeline processing; spatial variables measurement; GAIMS; feet trajectories; multiple range laser scanners; nonintrusive measurement; observed point cloud; reliable processing pipeline; Biomedical measurement; Lasers; Legged locomotion; Multiple sclerosis; Pipelines; Sensors; Trajectory; GAIMS; biometric identification; feet; multiple sclerosis; tracking;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on
Conference_Location :
Florence
DOI :
10.1109/ICASSP.2014.6854433