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Open AccessArticle

Measuring Oscillating Walking Paths with a LIDAR

Department of Computer Science and Industrial Engineering, University of Lleida, Jaume II, 69, 25001 Lleida, Spain
Author to whom correspondence should be addressed.
Sensors 2011, 11(5), 5071-5086;
Received: 22 February 2011 / Revised: 19 March 2011 / Accepted: 26 April 2011 / Published: 6 May 2011
(This article belongs to the Special Issue Advanced Sensing Technology for Nondestructive Evaluation)
This work describes the analysis of different walking paths registered using a Light Detection And Ranging (LIDAR) laser range sensor in order to measure oscillating trajectories during unsupervised walking. The estimate of the gait and trajectory parameters were obtained with a terrestrial LIDAR placed 100 mm above the ground with the scanning plane parallel to the floor to measure the trajectory of the legs without attaching any markers or modifying the floor. Three different large walking experiments were performed to test the proposed measurement system with straight and oscillating trajectories. The main advantages of the proposed system are the possibility to measure several steps and obtain average gait parameters and the minimum infrastructure required. This measurement system enables the development of new ambulatory applications based on the analysis of the gait and the trajectory during a walk. View Full-Text
Keywords: gait trajectory; gait measurement; laser range sensor; LIDAR; oscillatory path; alcohol intake gait trajectory; gait measurement; laser range sensor; LIDAR; oscillatory path; alcohol intake
MDPI and ACS Style

Teixidó, M.; Pallejà, T.; Tresanchez, M.; Nogués, M.; Palacín, J. Measuring Oscillating Walking Paths with a LIDAR. Sensors 2011, 11, 5071-5086.

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