Radial Distortion Correction Based On Improved Hough Transform Algorithm For Video Tracking: Measurement Error To Kinematic Analysis In Futsal

Por: D. Santana-cedrés, E. A. Pagnoca, F. Milioni, L. Alvarez, L. G. Déniz, L. H. P. Vieira, P. R. P. Santiago, R. A. Barbieri, R. P. Menezes e V. L. Andrade.

IX Congresso Internacional de Educação Física e Motricidade Humana XV Simpósio Paulista de Educação Física

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The aim of this study was to assess the applicability and reliability of a single GoPro® camera with sequences of images with distortion corrected for the kinematic analysis of tracking in futsal. We compared tracking performed with three cameras equipped with conventional lens to a GoPro® camera with a 170° aperture wide-angle lens. A five-minute excerpt of the game showed an average difference of 2.11 m.min-1 between the total distance covered obtained by tracking with the GoPro® camera and its distortion correction (438.97±164.65 m), and cameras with conventional lens (449.54±170.92 m). Static error was 0.19 m. We showed that a single GoPro® Hero 3+ can provide a reliable kinematic analysis of computational tracking based on videogrammetry for futsal, using the Hough transform and division model technique for radial distortion correction.

Endereço: http://www.periodicos.rc.biblioteca.unesp.br/index.php/motriz/article/view/10060/10060

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