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Critical Reviews™ in Physical and Rehabilitation Medicine

Published 4 issues per year

ISSN Print: 0896-2960

ISSN Online: 2162-6553

SJR: 0.141 SNIP: 0.129 CiteScore™:: 0.6 H-Index: 18

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Static and Dynamic Calibration of an Eight-Camera Optical System for Human Motion Analysis

Volume 22, Issue 1-4, 2010, pp. 49-59
DOI: 10.1615/CritRevPhysRehabilMed.v22.i1-4.40
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ABSTRACT

An eight-camera Optitrack motion capture system was evaluated by performing static, linear dynamic, and angular dynamic calibrations using marker distances associated with upper and lower extremity gait and wheelchair models. Data were analyzed to determine accuracy and resolution within a defined capture volume using a standard Cartesian reference system. Static accuracy ranged from 99.31 to 99.90%. Static resolution ranged from 0.04 ± 0.15 to 0.63 ± 0.15 mm at the 0.05 level of significance. The dynamic accuracy ranged from 94.82 to 99.77%, and dynamic resolution ranged from 0.09 ± 0.26 to 0.61 ± 0.31 mm at the 0.05 level of significance. These values are comparable to those reported for a standard Vicon 524 (Oxford Metrics, Oxford, England) motion analysis system. The results support application of the lower cost Optitrack system for 3D kinematic assessment of upper and lower extremity motion during gait, assisted ambulation, and wheelchair mobility.

CITED BY
  1. Obst Steven J., Newsham-West Richard, Barrett Rod S., In Vivo Measurement of Human Achilles Tendon Morphology Using Freehand 3-D Ultrasound, Ultrasound in Medicine & Biology, 40, 1, 2014. Crossref

  2. Liu Hai-Bin, Yuan Wen-Xue, He Zhi-Qiang, Cai Tan-Tan, Wang Xiao-Fei, Method and apparatus of 3D kinematic calibration for lab setting, 11th IEEE International Conference on Control & Automation (ICCA), 2014. Crossref

  3. Marinetto Eugenio, Garcia-Mato David, Garcia Alonso, Martinez Santiago, Desco Manuel, Pascau Javier, Multicamera Optical Tracker Assessment for Computer Aided Surgery Applications, IEEE Access, 6, 2018. Crossref

  4. Rammer Jacob, Slavens Brooke, Krzak Joseph, Winters Jack, Riedel Susan, Harris Gerald, Assessment of a markerless motion analysis system for manual wheelchair application, Journal of NeuroEngineering and Rehabilitation, 15, 1, 2018. Crossref

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