June 15, 2014
June 15, 2014
June 18, 2014
24.956.1 - 24.956.10
Open-source software in Biomedical Education: from tracking to modeling movementsMovement analysis is one of the most important topics in biomechanics especially when gearedtoward identifying sport specific movements or specific impairments after injuries orneuromuscular diseases. Unfortunately, the acquisition of a commercial motion captureapparatus is quite expensive, and prohibitive for many small educational enterprises. We developa session of the bioengineering laboratory course dedicated to motion capture and modeling ofhygienic movements using simple low-cost digital cameras and a suite of open-source free-waresoftware. This solution provides all the technical aspects of motion capture practice allowing fora full “hands-on” experience without investing in expansive equipment. We here present theacquisition and analysis of two hygienic movements such as combing and feeding oneself.Two digital camcorders were positioned at 45º to the sagittal and frontal plane, making sure thatthe focal distance and the field of view with a common reference point was the same. We chose adistance of 1.5m between subject and camera as a compromise between spatial resolution andvisual prospective distortions. Both videos were synchronized and processed with open-sourcevideo-editing and motion-tracking software. Even though the system could be marker-less, wedesign our instrumental setup using fluorescent, spherical markers to enhance the contrast ofbony landmarks in the movies.The data acquired was used to model the movement in an open-source multi-body simulationsoftware which allowed for the calculation of joint angles and muscles’ forces during themovements.The motives to use open-source software go beyond the economical aspect and promote a deeperunderstanding of the technical procedure, encouraging cooperative-learning and the respect ofsoftware license.
Papich, J. R., & Kennett, C. J., & Piovesan, D. (2014, June), Open-Source Software in Biomedical Education: From Tracking to Modeling Movements Paper presented at 2014 ASEE Annual Conference & Exposition, Indianapolis, Indiana. 10.18260/1-2--22889
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