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2016, Número 2

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Rev Mex Ing Biomed 2016; 37 (2)


Comparación de dos sistemas de captura de movimiento por medio de las trayectorias articulares de marcha

Bravo MDA, Rengifo RCF, Agredo RW

Idioma: Español
Referencias bibliográficas: 28
Paginas: 149-160
Archivo PDF: 872.97 Kb.


RESUMEN

En la actualidad, los métodos más comunes para una adecuada captura del movimiento humano en tresdimensiones requieren de un entorno de laboratorio y la fijación de marcadores, accesorios o sensores a los segmentoscorporales. Sin embargo, el alto costo de estos equipos es un factor limitante en diversos entornos de trabajo. Sistemasde captura de movimiento como Microsoft KinectTMpresentan un enfoque alternativo a la tecnología de captura demovimiento.
En este trabajo se comparan dos sistemas de captura de movimiento por medio de las trayectorias articulares y lasmedidas antropométricas de una persona en un ciclo de marcha normal. El primero de ellos, es un sistema comercialde precisión que utiliza marcadores (ViconTM) y el segundo, es la cámara Microsoft KinectTM. Ambos sistemas seevaluaron con el propósito de comparar la diferencia geométrica y el error RMS entre las trayectorias articularesde la marcha humana obtenidas por cada uno de los sistemas. Los resultados muestran una varianza mayor en lasmedidas antropométricas y trayectorias articulares para el Kinect, aunque este sistema es de bajo costo y de fáciluso e instalación, no puede ser utilizado para un análisis preciso de la cinemática de la marcha humana.


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