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An Automated Method to Extract Three-Dimensional Position Data Using an Infrared Time-of-Flight Camera

Centre for Sports Engineering, Sheffield Hallam University, Sheffield S10 2LX, UK
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Presented at the 12th Conference of the International Sports Engineering Association, Brisbane, Queensland, Australia, 26–29 March 2018.
Proceedings 2018, 2(6), 502; https://doi.org/10.3390/proceedings2060502
Published: 11 February 2018
Traditional motion capture systems can be prohibitive in healthcare settings from time, cost, space and user-expertise perspectives. Ideally, movement analysis technologies for healthcare should be low-cost, quick, simple and usable in small spaces. This study demonstrates a simple, low-cost and close-range time-of-flight depth-camera system, for automatic gait analysis. A method to automatically track three-dimensional position and orientation of retro-reflective marker-triads in real-time was developed. A marker-triad was applied to a participant (self-selected walking pace): thigh angle (wrt. global-vertical) was calculated. Trials were concurrently recorded using a motion capture system. Root-mean-square error was 2.5°, 1.3° and 2.2° for depth-camera distances of 0.8 m, 1.1 m and 1.4 m respectively. Results indicate that walking distances of 1.1 m are optimal for the current system. Further development and investigation into potential healthcare applications (e.g., low-cost, close-range gait analysis) is warranted.
Keywords: depth-camera; gait; analysis; home-based depth-camera; gait; analysis; home-based
MDPI and ACS Style

Dunn, M.; Pavan, D.; Ramirez, P.; Rava, S.; Sharin, A. An Automated Method to Extract Three-Dimensional Position Data Using an Infrared Time-of-Flight Camera. Proceedings 2018, 2, 502. https://doi.org/10.3390/proceedings2060502

AMA Style

Dunn M, Pavan D, Ramirez P, Rava S, Sharin A. An Automated Method to Extract Three-Dimensional Position Data Using an Infrared Time-of-Flight Camera. Proceedings. 2018; 2(6):502. https://doi.org/10.3390/proceedings2060502

Chicago/Turabian Style

Dunn, Marcus; Pavan, Davide; Ramirez, Paul; Rava, Silvia; Sharin, Atiqah. 2018. "An Automated Method to Extract Three-Dimensional Position Data Using an Infrared Time-of-Flight Camera" Proceedings 2, no. 6: 502. https://doi.org/10.3390/proceedings2060502

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