Automatic Quantification of the Degree of Flexion on Upper Extremity through Analysis of Monocular Video

Cuantificación automática del grado de flexión en extremidad superior por análisis de video monocular

Authors

  • Jose Davila Universidad de los Andes (ULA
  • Gerardo Ceballos Universidad de los andes (ULA
  • Valentín Molina Universidad ECCI
  • Hermann Dávila Universidad ECCI

Keywords:

Temporary dynamic alignment, Flexion-extension angle, Quantification, Curvature of a signal, Segmentation

Abstract

A method is introduced to obtain information on the movement of a human upper extremity based on automatic video analysis. This study used basic techniques of image segmentation and contour curvature calculation of the segmented extremity, as well as temporary dynamic alignment of sequences to track the two critical points that mark the elbow. Additionally, the median axes of the arm and forearm were calculated to then obtain curves of the extremity’s flexion angle over time. This methodology was used with seven individuals and the proposed automatic measurement was compared to the semi-assisted measurement in which a physiatrist conducted measurements on images by using a computer. The results suggest that this methodology could serve as a support tool in medicine for the evaluation of different diseases that affect the mobility of the extremities

Downloads

Published

2013-06-04

How to Cite

Davila, J., Ceballos, G. ., Molina, V. ., & Dávila, H. . (2013). Automatic Quantification of the Degree of Flexion on Upper Extremity through Analysis of Monocular Video: Cuantificación automática del grado de flexión en extremidad superior por análisis de video monocular. Tecciencia, 8(15), 9–13. Retrieved from https://tecciencia.ecci.edu.co/index.php/TECCIENCIA/article/view/76