Free Instrument for Movement Measure
Abstract
This paper presents the validation of a computational tool that serves to obtain continuous measurements of moving objects. The software uses techniques of computer vision, pattern recognition and optical flow, to enable tracking of objects in videos, generating data trajectory, velocity, acceleration and angular movement. The program was applied to track a ball around a simple pendulum. The methodology used to validate it, taking as a basis to compare the values measured by the program, as well as the theoretical values expected according to the model of a simple pendulum. The experiment is appropriate to the method because it was built within the limits of the linear harmonic oscillator and energy losses due to friction had been minimized, making it the most ideal possible. The results indicate that the tool is sensitive and accurate. Deviations of less than a millimeter to the extent of the trajectory, ensures the applicability of the software on physics, whether in research or in teaching topics.
Keywords
Cite
@article{arxiv.1307.0155,
title = {Free Instrument for Movement Measure},
author = {Norberto Peña and Bruno Cecílio Credidio and Lorena Peixoto Nogueira Rodriguez Martinez Salles Corrêa and Lucas Gabriel Souza França and Marcelo do Vale Cunha and Marcos Cavalcanti de Sousa and João Paulo Bomfim Cruz Vieira and José Garcia Vivas Miranda},
journal= {arXiv preprint arXiv:1307.0155},
year = {2013}
}
Comments
Accepted for publication at the RBEF - Revista Brasileira de Ensino de F\'isica