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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.
Received: 22 February 2011; in revised form: 19 March 2011 / Accepted: 26 April 2011 / Published: 6 May 2011
Abstract: 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.
Keywords: gait trajectory; gait measurement; laser range sensor; LIDAR; oscillatory path; alcohol intake
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Teixidó, M.; Pallejà, T.; Tresanchez, M.; Nogués, M.; Palacín, J. Measuring Oscillating Walking Paths with a LIDAR. Sensors 2011, 11, 5071-5086.
Teixidó M, Pallejà T, Tresanchez M, Nogués M, Palacín J. Measuring Oscillating Walking Paths with a LIDAR. Sensors. 2011; 11(5):5071-5086.
Teixidó, Mercè; Pallejà, Tomàs; Tresanchez, Marcel; Nogués, Miquel; Palacín, Jordi. 2011. "Measuring Oscillating Walking Paths with a LIDAR." Sensors 11, no. 5: 5071-5086.