Motion Capture
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Motion capture is the process of recording the position of an object, animal or person in motion. Motion capture (mocap) systems are used in applications from film and entertainment to medical applications and academic research [1]. A mocap system can be used to diagnose the difference between healthy individuals or a diseased/injured person as well as determine the effects of therapeutic interventions [2,3]. Although, mocap systems provide essential data, they are extremely expensive [8]. A traditional motion capture system can cost up to 80,000 USD. The popularity of motion capture for other applications, namely video games, has dramatically reduced the price of non-research based types of motion capture systems. The most prevalent and accessible of these is the Kinect for Xbox by Microsoft.
[1] Thomas P Andriacchi,et al. The evolution of methods for the capture of human movement leading to markerless motion capture for biomechanical applications , 2006, Journal of NeuroEngineering and Rehabilitation.
[2] Steven A Gard,et al. Gait characteristics of persons with bilateral transtibial amputations. , 2007, Journal of rehabilitation research and development.
[3] Samuel R Ward,et al. The Effect of Bracing on Patellofemoral Joint Stress during Free and Fast Walking , 2004, The American journal of sports medicine.