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A photogrammetric application in virtual sport training
Author(s) -
Chong Albert K.,
Croft Hayden G.
Publication year - 2009
Publication title -
the photogrammetric record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 51
eISSN - 1477-9730
pISSN - 0031-868X
DOI - 10.1111/j.1477-9730.2009.00517.x
Subject(s) - photogrammetry , stereoscopy , throwing , computer science , computer vision , artificial intelligence , motion capture , computer graphics (images) , engineering , motion (physics) , mechanical engineering
The paper discusses an application of close range photogrammetry for the development of a virtual training system for rugby football, and the use of the technique for the evaluation of rugby players’ performance. NuView, a stereo‐imaging device, and a digital high‐definition video (HDV) camera were used to capture stereoscopic video footage of players during field training. The left view and the right view were colour‐tinted cyan and red, respectively. The tinted stereo (anaglyph) views were projected onto a white screen, and players were instructed to practise ball‐throwing at the screen. A custom‐built laser device (TAM) measured the accuracy of the virtual throws. In addition, a photogrammetric system was used to track the movement of body segments, for example, the angle of shoulder orientation and the trunk flexion of the thrower. The measurements determined the parameters needed for an accurate throw and these parameters would be used in the training of new players. The study shows statistically significant differences in the values of these parameters between experienced and inexperienced players.